Classes
Protocols
Constants
Functions
Macros
Types
Variables

### Classes

NSAffineTransform
NSAppleEventDescriptor
NSAppleEventManager
NSAppleScript
NSArchiver
NSArray
NSAssertionHandler
NSAttributedString
NSAutoreleasePool
NSBackgroundActivityScheduler
NSBlockOperation
NSBundle
NSByteCountFormatter
NSCache
NSCachedURLResponse
NSCalendar
NSCalendarDate
NSCharacterSet
NSClassDescription
NSCoder
NSComparisonPredicate
NSCompoundPredicate
NSCondition
NSConditionLock
NSConnection
NSCountedSet
NSData
NSDate
NSDateComponents
NSDateComponentsFormatter
NSDateFormatter
NSDateInterval
NSDateIntervalFormatter
NSDecimalNumber
NSDecimalNumberHandler
NSDeserializer
NSDictionary
NSDimension
NSDirectoryEnumerator
NSDistantObject
NSDistributedLock
NSDistributedNotificationCenter
NSEnergyFormatter
NSEnumerator
NSError
NSException
NSExpression
NSExtensionContext
NSExtensionItem
NSFileAccessIntent
NSFileCoordinator
NSFileHandle
NSFileManager
NSFileVersion
NSFileWrapper
NSFormatter
NSGarbageCollector
NSHTTPCookie
NSHTTPCookieStorage
NSHTTPURLResponse
NSHashTable
NSHost
NSISO8601DateFormatter
NSIndexPath
NSIndexSet
NSInputStream
NSInvocation
NSInvocationOperation
NSItemProvider
NSItemProviderReadingWriting
NSJSONSerialization
NSKeyedArchiver
NSKeyedUnarchiver
NSLengthFormatter
NSLinguisticTagger
NSLocale
NSLock
NSMapTable
NSMassFormatter
NSMeasurement
NSMeasurementFormatter
NSMessagePort
NSMessagePortNameServer
NSMetadataItem
NSMetadataQuery
NSMetadataQueryAttributeValueTuple
NSMetadataQueryResultGroup
NSMethodSignature
NSMutableArray
NSMutableAttributedString
NSMutableCharacterSet
NSMutableData
NSMutableDictionary
NSMutableIndexSet
NSMutableOrderedSet
NSMutableSet
NSMutableString
NSMutableURLRequest
NSNetService
NSNetServiceBrowser
NSNotification
NSNotificationCenter
NSNotificationQueue
NSNull
NSNumber
NSNumberFormatter
NSObject
NSObjectScripting
NSOperation
NSOperationQueue
NSOrderedSet
NSOrthography
NSOutputStream
NSPersonNameComponents
NSPersonNameComponentsFormatter
NSPipe
NSPointerArray
NSPointerFunctions
NSPort
NSPortCoder
NSPortMessage
NSPortNameServer
NSPredicate
NSProcessInfo
NSProgress
NSPropertyListSerialization
NSProtocolChecker
NSProxy
NSRecursiveLock
NSRegularExpression
NSRunLoop
NSScanner
NSScriptClassDescription
NSScriptCoercionHandler
NSScriptCommand
NSScriptCommandDescription
NSScriptExecutionContext
NSScriptKeyValueCoding
NSScriptObjectSpecifiers
NSScriptStandardSuiteCommands
NSScriptSuiteRegistry
NSSerializer
NSSet
NSSocketPort
NSSocketPortNameServer
NSSortDescriptor
NSSpellServer
NSStream
NSString
NSTask
NSTextCheckingResult
NSThread
NSTimeZone
NSTimeZoneDetail
NSTimer
NSURL
NSURLAuthenticationChallenge
NSURLCache
NSURLComponents
NSURLConnection
NSURLCredential
NSURLCredentialStorage
NSURLDownload
NSURLHandle
NSURLProtectionSpace
NSURLProtocol
NSURLQueryItem
NSURLRequest
NSURLResponse
NSURLSession
NSURLSessionConfiguration
NSURLSessionDataTask
NSURLSessionDownloadTask
NSURLSessionStreamTask
NSURLSessionTask
NSURLSessionUploadTask
NSUUID
NSUbiquitousKeyValueStore
NSUnarchiver
NSUndoManager
NSUnit
NSUnitAcceleration
NSUnitAngle
NSUnitArea
NSUnitConcentrationMass
NSUnitConverter
NSUnitConverterLinear
NSUnitDispersion
NSUnitDuration
NSUnitElectricCharge
NSUnitElectricCurrent
NSUnitElectricPotentialDifference
NSUnitElectricResistance
NSUnitEnergy
NSUnitFrequency
NSUnitFuelEfficiency
NSUnitIlluminance
NSUnitLength
NSUnitMass
NSUnitPower
NSUnitPressure
NSUnitSpeed
NSUnitTemperature
NSUnitVolume
NSUserActivity
NSUserDefaults
NSUserNotification
NSUserNotificationCenter
NSUserScriptTask
NSValue
NSValueTransformer
NSXMLDTD
NSXMLDTDNode
NSXMLDocument
NSXMLElement
NSXMLNode
NSXMLParser
NSXPCConnection
NSXPCInterface
NSXPCListener
NSXPCListenerEndpoint
NXConstantString

### Protocols

<GSLogDelegate>
<NSCacheDelegate>
<NSCoding>
<NSCopying>
<NSDecimalNumberBehaviors>
<NSDiscardableContent>
<NSExtensionRequestHandling>
<NSFastEnumeration>
<NSFileManagerDelegate>
<NSFilePresenter>
<NSItemProviderReading>
<NSItemProviderWriting>
<NSLocking>
<NSMetadataQueryDelegate>
<NSMutableCopying>
<NSNetServiceBrowserDelegate>
<NSNetServiceDelegate>
<NSObjCTypeSerializationCallBack>
<NSObject>
<NSProgressReporting>
<NSSecureCoding>
<NSStreamDelegate>
<NSURLAuthenticationChallengeSender>
<NSURLConnectionDataDelegate>
<NSURLHandleClient>
<NSURLProtocolClient>
<NSURLSessionDataDelegate>
<NSURLSessionDelegate>
<NSURLSessionDownloadDelegate>
<NSURLSessionTaskDelegate>
<NSUserNotificationCenterDelegate>
<NSXMLParserDelegate>
<NSXPCListenerDelegate>
<NSXPCProxyCreating>
<RunLoopEvents>
(GSTraceLocks)
(NSComparisonMethods)
(NSConnectionDelegate)
(NSErrorRecoveryAttempting)
(NSFileManagerDelegate)
(NSFileManagerHandler)
(NSFilePresenter)
(NSKeyValueCoding)
(NSMetadataQueryDelegate)
(NSNetServiceBrowserDelegateMethods)
(NSNetServiceDelegateMethods)
(NSSpellServerDelegate)
(NSStreamDelegate)
(NSUserNotificationCenterDelegateMethods)
(RunLoopEvents)
(TimedPerformers)

### Constants

GSCACertificateFilePath
GSConfigDomain
GSFileHandleConnectCompletionNotification
GSFileHandleNotificationError
GSFileHandleWriteCompletionNotification
GSHTTPPropertyCertificateFileKey
GSHTTPPropertyKeyFileKey
GSHTTPPropertyLocalHostKey
GSHTTPPropertyMethodKey
GSHTTPPropertyPasswordKey
GSHTTPPropertyProxyHostKey
GSHTTPPropertyProxyPortKey
GSLocale
GSNetworkNotificationCenterType
GSPublicNotificationCenterType
GSTLSCAFile
GSTLSCertificateFile
GSTLSCertificateKeyFile
GSTLSCertificateKeyPassword
GSTLSDebug
GSTLSIssuers
GSTLSOwners
GSTLSPriority
GSTLSRemoteHosts
GSTLSRevokeFile
GSTLSServerName
GSTLSVerify
NSAMPMDesignation
NSArgumentDomain
NSAssertionHandlerKey
NSBuddhistCalendar
NSBundleDidLoadNotification
NSCalendarIdentifierBuddhist
NSCalendarIdentifierChinese
NSCalendarIdentifierCoptic
NSCalendarIdentifierEthiopicAmeteAlem
NSCalendarIdentifierEthiopicAmeteMihret
NSCalendarIdentifierGregorian
NSCalendarIdentifierHebrew
NSCalendarIdentifierISO8601
NSCalendarIdentifierIndian
NSCalendarIdentifierIslamic
NSCalendarIdentifierIslamicCivil
NSCalendarIdentifierIslamicTabular
NSCalendarIdentifierIslamicUmmAlQura
NSCalendarIdentifierJapanese
NSCalendarIdentifierPersian
NSCalendarIdentifierRepublicOfChina
NSCharacterConversionException
NSChineseCalendar
NSClassDescriptionNeededForClassNotification
NSConnectionDidDieNotification
NSConnectionDidInitializeNotification
NSConnectionLocalCount
NSConnectionProxyCount
NSConnectionRepliesReceived
NSConnectionRepliesSent
NSConnectionReplyMode
NSConnectionRequestsReceived
NSConnectionRequestsSent
NSCurrencyString
NSCurrencySymbol
NSCurrentLocaleDidChangeNotification
NSDateFormatString
NSDateTimeOrdering
NSDecimalDigits
NSDecimalSeparator
NSDestinationInvalidException
NSEarlierTimeDesignations
NSEdgeInsetsZero
NSErrorFailingURLStringKey
NSExtensionHostDidBecomeActiveNotification
NSExtensionHostDidEnterBackgroundNotification
NSExtensionHostWillEnterForegroundNotification
NSExtensionHostWillResignActiveNotification
NSExtensionItemAttachmentsKey
NSExtensionItemAttributedContentTextKey
NSExtensionItemAttributedTitleKey
NSExtensionItemsAndErrorsKey
NSExtensionJavaScriptFinalizeArgumentKey
NSExtensionJavaScriptPreprocessingResultsKey
NSFailedAuthenticationException
NSFileAppendOnly
NSFileCreationDate
NSFileDeviceIdentifier
NSFileExtensionHidden
NSFileGroupOwnerAccountID
NSFileGroupOwnerAccountName
NSFileHFSCreatorCode
NSFileHFSTypeCode
NSFileHandleConnectionAcceptedNotification
NSFileHandleDataAvailableNotification
NSFileHandleNotificationDataItem
NSFileHandleNotificationFileHandleItem
NSFileHandleNotificationMonitorModes
NSFileHandleOperationException
NSFileHandleReadCompletionNotification
NSFileHandleReadToEndOfFileCompletionNotification
NSFileImmutable
NSFileModificationDate
NSFileOwnerAccountID
NSFileOwnerAccountName
NSFilePathErrorKey
NSFilePosixPermissions
NSFileReferenceCount
NSFileSize
NSFileSystemFileNumber
NSFileSystemFreeNodes
NSFileSystemFreeSize
NSFileSystemNodes
NSFileSystemNumber
NSFileSystemSize
NSFileType
NSFileTypeBlockSpecial
NSFileTypeCharacterSpecial
NSFileTypeDirectory
NSFileTypeFifo
NSFileTypeRegular
NSFileTypeSocket
NSFileTypeSymbolicLink
NSFileTypeUnknown
NSFormalName
NSGenericException
NSGlobalDomain
NSGrammarCorrections
NSGrammarRange
NSGrammarUserDescription
NSGregorianCalendar
NSHTTPCookieComment
NSHTTPCookieCommentURL
NSHTTPCookieDiscard
NSHTTPCookieDomain
NSHTTPCookieExpires
NSHTTPCookieManagerAcceptPolicyChangedNotification
NSHTTPCookieManagerCookiesChangedNotification
NSHTTPCookieMaximumAge
NSHTTPCookieName
NSHTTPCookieOriginURL
NSHTTPCookiePath
NSHTTPCookiePort
NSHTTPCookieSecure
NSHTTPCookieValue
NSHTTPCookieVersion
NSHTTPPropertyErrorPageDataKey
NSHTTPPropertyRedirectionHeadersKey
NSHTTPPropertyServerHTTPVersionKey
NSHTTPPropertyStatusCodeKey
NSHTTPPropertyStatusReasonKey
NSHebrewCalendar
NSHourNameDesignations
NSISO8601Calendar
NSInconsistentArchiveException
NSIndianCalendar
NSIntHashCallBacks
NSIntMapKeyCallBacks
NSIntMapValueCallBacks
NSIntegerHashCallBacks
NSIntegerMapKeyCallBacks
NSIntegerMapValueCallBacks
NSInternalInconsistencyException
NSInternationalCurrencyString
NSInvalidArchiveOperationException
NSInvalidArgumentException
NSInvalidReceivePortException
NSInvalidSendPortException
NSInvalidUnarchiveOperationException
NSInvocationOperationCancelledException
NSInvocationOperationVoidResultException
NSIsNilTransformerName
NSIsNotNilTransformerName
NSIslamicCalendar
NSIslamicCivilCalendar
NSItemProviderErrorDomain
NSItemProviderPreferredImageSizeKey
NSJapaneseCalendar
NSKeyValueChangeIndexesKey
NSKeyValueChangeKindKey
NSKeyValueChangeNewKey
NSKeyValueChangeNotificationIsPriorKey
NSKeyValueChangeOldKey
NSLanguageCode
NSLanguageName
NSLaterTimeDesignations
NSLoadedClasses
NSLocalNotificationCenterType
NSLocaleAlternateQuotationBeginDelimiterKey
NSLocaleAlternateQuotationEndDelimiterKey
NSLocaleCalendar
NSLocaleCalendarIdentifier
NSLocaleCollationIdentifier
NSLocaleCollatorIdentifier
NSLocaleCountryCode
NSLocaleCurrencyCode
NSLocaleCurrencySymbol
NSLocaleDecimalSeparator
NSLocaleExemplarCharacterSet
NSLocaleGroupingSeparator
NSLocaleIdentifier
NSLocaleLanguageCode
NSLocaleMeasurementSystem
NSLocaleQuotationBeginDelimiterKey
NSLocaleQuotationEndDelimiterKey
NSLocaleScriptCode
NSLocaleUsesMetricSystem
NSLocaleVariantCode
NSLocalizedDescriptionKey
NSLocalizedFailureReasonErrorKey
NSLocalizedRecoveryOptionsErrorKey
NSLocalizedRecoverySuggestionErrorKey
NSMallocException
NSMatchingAnchored
NSMatchingCompleted
NSMatchingHitEnd
NSMatchingInternalError
NSMatchingProgress
NSMatchingReportCompletion
NSMatchingReportProgress
NSMatchingRequiredEnd
NSMatchingWithTransparentBounds
NSMatchingWithoutAnchoringBounds
NSMetadataItemAcquisitionMakeKey
NSMetadataItemAcquisitionModelKey
NSMetadataItemAlbumKey
NSMetadataItemAltitudeKey
NSMetadataItemApertureKey
NSMetadataItemAppleLoopDescriptorsKey
NSMetadataItemAppleLoopsKeyFilterTypeKey
NSMetadataItemAppleLoopsLoopModeKey
NSMetadataItemAppleLoopsRootKeyKey
NSMetadataItemApplicationCategoriesKey
NSMetadataItemAttributeChangeDateKey
NSMetadataItemAudiencesKey
NSMetadataItemAudioBitRateKey
NSMetadataItemAudioChannelCountKey
NSMetadataItemAudioEncodingApplicationKey
NSMetadataItemAudioSampleRateKey
NSMetadataItemAudioTrackNumberKey
NSMetadataItemAuthorAddressesKey
NSMetadataItemAuthorEmailAddressesKey
NSMetadataItemAuthorsKey
NSMetadataItemBitsPerSampleKey
NSMetadataItemCFBundleIdentifierKey
NSMetadataItemCameraOwnerKey
NSMetadataItemCityKey
NSMetadataItemCodecsKey
NSMetadataItemColorSpaceKey
NSMetadataItemCommentKey
NSMetadataItemComposerKey
NSMetadataItemContactKeywordsKey
NSMetadataItemContentCreationDateKey
NSMetadataItemContentModificationDateKey
NSMetadataItemContentTypeKey
NSMetadataItemContentTypeTreeKey
NSMetadataItemContributorsKey
NSMetadataItemCopyrightKey
NSMetadataItemCountryKey
NSMetadataItemCoverageKey
NSMetadataItemCreatorKey
NSMetadataItemDateAddedKey
NSMetadataItemDeliveryTypeKey
NSMetadataItemDescriptionKey
NSMetadataItemDirectorKey
NSMetadataItemDisplayNameKey
NSMetadataItemDownloadedDateKey
NSMetadataItemDueDateKey
NSMetadataItemDurationSecondsKey
NSMetadataItemEXIFGPSVersionKey
NSMetadataItemEXIFVersionKey
NSMetadataItemEditorsKey
NSMetadataItemEmailAddressesKey
NSMetadataItemEncodingApplicationsKey
NSMetadataItemExecutableArchitecturesKey
NSMetadataItemExecutablePlatformKey
NSMetadataItemExposureModeKey
NSMetadataItemExposureProgramKey
NSMetadataItemExposureTimeSecondsKey
NSMetadataItemExposureTimeStringKey
NSMetadataItemFNumberKey
NSMetadataItemFSContentChangeDateKey
NSMetadataItemFSCreationDateKey
NSMetadataItemFSNameKey
NSMetadataItemFSSizeKey
NSMetadataItemFinderCommentKey
NSMetadataItemFlashOnOffKey
NSMetadataItemFocalLength35mmKey
NSMetadataItemFocalLengthKey
NSMetadataItemFontsKey
NSMetadataItemGPSAreaInformationKey
NSMetadataItemGPSDOPKey
NSMetadataItemGPSDateStampKey
NSMetadataItemGPSDestBearingKey
NSMetadataItemGPSDestDistanceKey
NSMetadataItemGPSDestLatitudeKey
NSMetadataItemGPSDestLongitudeKey
NSMetadataItemGPSDifferentalKey
NSMetadataItemGPSMapDatumKey
NSMetadataItemGPSMeasureModeKey
NSMetadataItemGPSProcessingMethodKey
NSMetadataItemGPSStatusKey
NSMetadataItemGPSTrackKey
NSMetadataItemGenreKey
NSMetadataItemHasAlphaChannelKey
NSMetadataItemHeadlineKey
NSMetadataItemISOSpeedKey
NSMetadataItemIdentifierKey
NSMetadataItemImageDirectionKey
NSMetadataItemInformationKey
NSMetadataItemInstantMessageAddressesKey
NSMetadataItemInstructionsKey
NSMetadataItemIsApplicationManagedKey
NSMetadataItemIsGeneralMIDISequenceKey
NSMetadataItemIsLikelyJunkKey
NSMetadataItemIsUbiquitousKey
NSMetadataItemKeySignatureKey
NSMetadataItemKeywordsKey
NSMetadataItemKindKey
NSMetadataItemLanguagesKey
NSMetadataItemLastUsedDateKey
NSMetadataItemLatitudeKey
NSMetadataItemLayerNamesKey
NSMetadataItemLensModelKey
NSMetadataItemLongitudeKey
NSMetadataItemLyricistKey
NSMetadataItemMaxApertureKey
NSMetadataItemMediaTypesKey
NSMetadataItemMeteringModeKey
NSMetadataItemMusicalGenreKey
NSMetadataItemMusicalInstrumentCategoryKey
NSMetadataItemMusicalInstrumentNameKey
NSMetadataItemNamedLocationKey
NSMetadataItemNumberOfPagesKey
NSMetadataItemOrganizationsKey
NSMetadataItemOrientationKey
NSMetadataItemOriginalFormatKey
NSMetadataItemOriginalSourceKey
NSMetadataItemPageHeightKey
NSMetadataItemPageWidthKey
NSMetadataItemParticipantsKey
NSMetadataItemPathKey
NSMetadataItemPerformersKey
NSMetadataItemPhoneNumbersKey
NSMetadataItemPixelCountKey
NSMetadataItemPixelHeightKey
NSMetadataItemPixelWidthKey
NSMetadataItemProducerKey
NSMetadataItemProfileNameKey
NSMetadataItemProjectsKey
NSMetadataItemPublishersKey
NSMetadataItemRecipientAddressesKey
NSMetadataItemRecipientEmailAddressesKey
NSMetadataItemRecipientsKey
NSMetadataItemRecordingDateKey
NSMetadataItemRecordingYearKey
NSMetadataItemRedEyeOnOffKey
NSMetadataItemResolutionHeightDPIKey
NSMetadataItemResolutionWidthDPIKey
NSMetadataItemRightsKey
NSMetadataItemSecurityMethodKey
NSMetadataItemSpeedKey
NSMetadataItemStarRatingKey
NSMetadataItemStateOrProvinceKey
NSMetadataItemStreamableKey
NSMetadataItemSubjectKey
NSMetadataItemTempoKey
NSMetadataItemTextContentKey
NSMetadataItemThemeKey
NSMetadataItemTimeSignatureKey
NSMetadataItemTimestampKey
NSMetadataItemTitleKey
NSMetadataItemTotalBitRateKey
NSMetadataItemURLKey
NSMetadataItemVersionKey
NSMetadataItemVideoBitRateKey
NSMetadataItemWhereFromsKey
NSMetadataItemWhiteBalanceKey
NSMetadataQueryDidFinishGatheringNotification
NSMetadataQueryDidStartGatheringNotification
NSMetadataQueryDidUpdateNotification
NSMetadataQueryGatheringProgressNotification
NSMetadataQueryLocalComputerScope
NSMetadataQueryNetworkScope
NSMetadataQueryUbiquitousDataScope
NSMetadataQueryUbiquitousDocumentsScope
NSMetadataQueryUserHomeScope
NSMetadataUbiquitousItemContainerDisplayNameKey
NSMetadataUbiquitousItemDownloadRequestedKey
NSMetadataUbiquitousItemDownloadingErrorKey
NSMetadataUbiquitousItemDownloadingStatusCurrent
NSMetadataUbiquitousItemDownloadingStatusDownloaded
NSMetadataUbiquitousItemDownloadingStatusKey
NSMetadataUbiquitousItemDownloadingStatusNotDownloaded
NSMetadataUbiquitousItemHasUnresolvedConflictsKey
NSMetadataUbiquitousItemIsDownloadedKey
NSMetadataUbiquitousItemIsDownloadingKey
NSMetadataUbiquitousItemIsExternalDocumentKey
NSMetadataUbiquitousItemIsSharedKey
NSMetadataUbiquitousItemIsUploadedKey
NSMetadataUbiquitousItemIsUploadingKey
NSMetadataUbiquitousItemPercentDownloadedKey
NSMetadataUbiquitousItemPercentUploadedKey
NSMetadataUbiquitousItemURLInLocalContainerKey
NSMetadataUbiquitousItemUploadingErrorKey
NSMetadataUbiquitousSharedItemCurrentUserPermissionsKey
NSMetadataUbiquitousSharedItemCurrentUserRoleKey
NSMetadataUbiquitousSharedItemMostRecentEditorNameComponentsKey
NSMetadataUbiquitousSharedItemOwnerNameComponentsKey
NSMetadataUbiquitousSharedItemPermissionsReadOnly
NSMetadataUbiquitousSharedItemPermissionsReadWrite
NSMetadataUbiquitousSharedItemRoleOwner
NSMetadataUbiquitousSharedItemRoleParticipant
NSMonthNameArray
NSNegateBooleanTransformerName
NSNetServicesErrorCode
NSNetServicesErrorDomain
NSNextDayDesignations
NSNextNextDayDesignations
NSNonOwnedPointerHashCallBacks
NSNonOwnedPointerMapKeyCallBacks
NSNonOwnedPointerMapValueCallBacks
NSNonOwnedPointerOrNullMapKeyCallBacks
NSNonRetainedObjectHashCallBacks
NSNonRetainedObjectMapKeyCallBacks
NSNonRetainedObjectMapValueCallBacks
NSObjectHashCallBacks
NSObjectInaccessibleException
NSObjectMapKeyCallBacks
NSObjectMapValueCallBacks
NSObjectNotAvailableException
NSOldStyleException
NSOwnedPointerHashCallBacks
NSOwnedPointerMapKeyCallBacks
NSOwnedPointerMapValueCallBacks
NSParseErrorException
NSPersianCalendar
NSPersonNameComponentDelimiter
NSPersonNameComponentFamilyName
NSPersonNameComponentGivenName
NSPersonNameComponentKey
NSPersonNameComponentMiddleName
NSPersonNameComponentNickname
NSPersonNameComponentPrefix
NSPersonNameComponentSuffix
NSPointerToStructHashCallBacks
NSPortDidBecomeInvalidNotification
NSPortReceiveException
NSPortSendException
NSPortTimeoutException
NSPriorDayDesignations
NSRangeException
NSRecoveryAttempterErrorKey
NSRegistrationDomain
NSRegularExpressionAllowCommentsAndWhitespace
NSRegularExpressionAnchorsMatchLines
NSRegularExpressionCaseInsensitive
NSRegularExpressionDotMatchesLineSeparators
NSRegularExpressionIgnoreMetacharacters
NSRegularExpressionUseUnicodeWordBoundaries
NSRegularExpressionUseUnixLineSeparators
NSRepublicOfChinaCalendar
NSShortDateFormatString
NSShortMonthNameArray
NSShortTimeDateFormatString
NSShortWeekDayNameArray
NSShowNonLocalizedStrings
NSStreamDataWrittenToMemoryStreamKey
NSStreamFileCurrentOffsetKey
NSStreamSOCKSErrorDomain
NSStreamSOCKSProxyConfigurationKey
NSStreamSOCKSProxyHostKey
NSStreamSOCKSProxyPasswordKey
NSStreamSOCKSProxyPortKey
NSStreamSOCKSProxyUserKey
NSStreamSOCKSProxyVersion4
NSStreamSOCKSProxyVersion5
NSStreamSOCKSProxyVersionKey
NSStreamSocketSSLErrorDomain
NSStreamSocketSecurityLevelKey
NSStreamSocketSecurityLevelNegotiatedSSL
NSStreamSocketSecurityLevelNone
NSStreamSocketSecurityLevelSSLv2
NSStreamSocketSecurityLevelSSLv3
NSStreamSocketSecurityLevelTLSv1
NSStringEncodingErrorKey
NSSystemClockDidChangeNotification
NSSystemTimeZoneDidChangeNotification
NSTaskDidTerminateNotification
NSThisDayDesignations
NSThousandsSeparator
NSThreadDidStartNotification
NSThreadWillExitNotification
NSThumbnail1024x1024SizeKey
NSTimeDateFormatString
NSTimeFormatString
NSTimeIntervalSince1970
NSURLAddedToDirectoryDateKey
NSURLApplicationIsScriptableKey
NSURLAttributeModificationDateKey
NSURLAuthenticationMethodClientCertificate
NSURLAuthenticationMethodDefault
NSURLAuthenticationMethodHTMLForm
NSURLAuthenticationMethodHTTPBasic
NSURLAuthenticationMethodHTTPDigest
NSURLAuthenticationMethodNTLM
NSURLAuthenticationMethodNegotiate
NSURLAuthenticationMethodServerTrust
NSURLContentAccessDateKey
NSURLContentModificationDateKey
NSURLCreationDateKey
NSURLCredentialStorageChangedNotification
NSURLCustomIconKey
NSURLDocumentIdentifierKey
NSURLEffectiveIconKey
NSURLErrorDomain
NSURLErrorFailingURLErrorKey
NSURLErrorFailingURLStringErrorKey
NSURLErrorKey
NSURLFileAllocatedSizeKey
NSURLFileResourceIdentifierKey
NSURLFileResourceTypeBlockSpecial
NSURLFileResourceTypeCharacterSpecial
NSURLFileResourceTypeDirectory
NSURLFileResourceTypeKey
NSURLFileResourceTypeNamedPipe
NSURLFileResourceTypeRegular
NSURLFileResourceTypeSocket
NSURLFileResourceTypeSymbolicLink
NSURLFileResourceTypeUnknown
NSURLFileScheme
NSURLFileSecurityKey
NSURLFileSizeKey
NSURLGenerationIdentifierKey
NSURLHasHiddenExtensionKey
NSURLIsAliasFileKey
NSURLIsApplicationKey
NSURLIsDirectoryKey
NSURLIsExcludedFromBackupKey
NSURLIsExecutableKey
NSURLIsHiddenKey
NSURLIsMountTriggerKey
NSURLIsPackageKey
NSURLIsReadableKey
NSURLIsRegularFileKey
NSURLIsSymbolicLinkKey
NSURLIsSystemImmutableKey
NSURLIsUbiquitousItemKey
NSURLIsUserImmutableKey
NSURLIsVolumeKey
NSURLIsWritableKey
NSURLLabelColorKey
NSURLLabelNumberKey
NSURLLinkCountKey
NSURLLocalizedLabelKey
NSURLLocalizedNameKey
NSURLLocalizedTypeDescriptionKey
NSURLNameKey
NSURLParentDirectoryURLKey
NSURLPathKey
NSURLPreferredIOBlockSizeKey
NSURLProtectionSpaceFTPProxy
NSURLProtectionSpaceHTTPProxy
NSURLProtectionSpaceHTTPSProxy
NSURLProtectionSpaceSOCKSProxy
NSURLQuarantinePropertiesKey
NSURLSessionTaskPriorityDefault
NSURLSessionTaskPriorityHigh
NSURLSessionTaskPriorityLow
NSURLSessionTransferSizeUnknown
NSURLTagNamesKey
NSURLTotalFileAllocatedSizeKey
NSURLTotalFileSizeKey
NSURLTypeIdentifierKey
NSURLUbiquitousItemContainerDisplayNameKey
NSURLUbiquitousItemDownloadRequestedKey
NSURLUbiquitousItemDownloadingErrorKey
NSURLUbiquitousItemDownloadingStatusCurrent
NSURLUbiquitousItemDownloadingStatusDownloaded
NSURLUbiquitousItemDownloadingStatusKey
NSURLUbiquitousItemDownloadingStatusNotDownloaded
NSURLUbiquitousItemHasUnresolvedConflictsKey
NSURLUbiquitousItemIsDownloadingKey
NSURLUbiquitousItemIsUploadedKey
NSURLUbiquitousItemIsUploadingKey
NSURLUbiquitousItemUploadingErrorKey
NSURLVolumeAvailableCapacityKey
NSURLVolumeCreationDateKey
NSURLVolumeIdentifierKey
NSURLVolumeIsAutomountedKey
NSURLVolumeIsBrowsableKey
NSURLVolumeIsEjectableKey
NSURLVolumeIsInternalKey
NSURLVolumeIsJournalingKey
NSURLVolumeIsLocalKey
NSURLVolumeIsReadOnlyKey
NSURLVolumeIsRemovableKey
NSURLVolumeLocalizedFormatDescriptionKey
NSURLVolumeLocalizedNameKey
NSURLVolumeMaximumFileSizeKey
NSURLVolumeNameKey
NSURLVolumeResourceCountKey
NSURLVolumeSupportsAdvisoryFileLockingKey
NSURLVolumeSupportsCasePreservedNamesKey
NSURLVolumeSupportsCaseSensitiveNamesKey
NSURLVolumeSupportsExtendedSecurityKey
NSURLVolumeSupportsHardLinksKey
NSURLVolumeSupportsJournalingKey
NSURLVolumeSupportsPersistentIDsKey
NSURLVolumeSupportsRenamingKey
NSURLVolumeSupportsRootDirectoryDatesKey
NSURLVolumeSupportsSparseFilesKey
NSURLVolumeSupportsSymbolicLinksKey
NSURLVolumeSupportsVolumeSizesKey
NSURLVolumeSupportsZeroRunsKey
NSURLVolumeTotalCapacityKey
NSURLVolumeURLForRemountingKey
NSURLVolumeURLKey
NSURLVolumeUUIDStringKey
NSUbiquitousKeyValueStoreChangeReasonKey
NSUbiquitousKeyValueStoreDidChangeExternallyNotification
NSUnarchiveFromDataTransformerName
NSUndefinedKeyException
NSUnderlyingErrorKey
NSUndoManagerCheckpointNotification
NSUndoManagerDidOpenUndoGroupNotification
NSUndoManagerDidRedoChangeNotification
NSUndoManagerDidUndoChangeNotification
NSUndoManagerWillCloseUndoGroupNotification
NSUndoManagerWillRedoChangeNotification
NSUndoManagerWillUndoChangeNotification
NSUserDefaultsDidChangeNotification
NSUserNotificationDefaultSoundName
NSWeekDayNameArray
NSWillBecomeMultiThreadedNotification
NSXMLParserErrorDomain
NSYearMonthWeekDesignations
NSZeroPoint
NSZeroRect
NSZeroSize

### Functions

GNUstepConfig
GNUstepUserConfig
GSDebugAllocationActive
GSDebugAllocationAdd
GSDebugAllocationBytes
GSDebugAllocationClassList
GSDebugAllocationCount
GSDebugAllocationList
GSDebugAllocationListAll
GSDebugAllocationListRecordedObjects
GSDebugAllocationPeak
GSDebugAllocationRecordAndTrace
GSDebugAllocationRecordObjects
GSDebugAllocationRemove
GSDebugAllocationTagRecordedObject
GSDebugAllocationTaggedObjects
GSDebugAllocationTotal
GSDebugSet
GSDefaultsRootForUser
GSInitializeProcess
GSInitializeProcessAndroid
GSInitializeProcessAndroidWithArgs
GSLogLock
GSNSURLSessionDataCompletionHandler
GSNSURLSessionDownloadCompletionHandler
GSOutOfMemory
GSRegisterCurrentThread
GSSetDebugAllocationFunctions
GSSetUserName
GSSpellServerName
GSSwapBigI128ToHost
GSSwapBigI16ToHost
GSSwapBigI32ToHost
GSSwapBigI64ToHost
GSSwapHostI128ToBig
GSSwapHostI128ToLittle
GSSwapHostI16ToBig
GSSwapHostI16ToLittle
GSSwapHostI32ToBig
GSSwapHostI32ToLittle
GSSwapHostI64ToBig
GSSwapHostI64ToLittle
GSSwapI128
GSSwapI16
GSSwapI32
GSSwapI64
GSSwapLittleI128ToHost
GSSwapLittleI16ToHost
GSSwapLittleI32ToHost
GSSwapLittleI64ToHost
GSUPurge
GSUSet
GSUnique
GSUniquing
GSUnregisterCurrentThread
NSAllHashTableObjects
NSAllMapTableKeys
NSAllMapTableValues
NSAllocateCollectable
NSAllocateMemoryPages
NSAllocateObject
NSClassFromString
NSCompareHashTables
NSCompareMapTables
NSContainsRect
NSConvertHostDoubleToSwapped
NSConvertHostFloatToSwapped
NSConvertSwappedDoubleToHost
NSConvertSwappedFloatToHost
NSCopyHashTableWithZone
NSCopyMapTableWithZone
NSCopyMemoryPages
NSCopyObject
NSCountFrames
NSCountHashTable
NSCountMapTable
NSCreateHashTable
NSCreateHashTableWithZone
NSCreateMapTable
NSCreateMapTableWithZone
NSCreateZone
NSDeallocateMemoryPages
NSDeallocateObject
NSDecimalAdd
NSDecimalCompact
NSDecimalCompare
NSDecimalCopy
NSDecimalDivide
NSDecimalDouble
NSDecimalFromComponents
NSDecimalFromString
NSDecimalIsNotANumber
NSDecimalMax
NSDecimalMin
NSDecimalMultiply
NSDecimalMultiplyByPowerOf10
NSDecimalNormalize
NSDecimalPower
NSDecimalRound
NSDecimalString
NSDecimalSubtract
NSDecrementExtraRefCountWasZero
NSDefaultMallocZone
NSDivideRect
NSEdgeInsetsEqual
NSEdgeInsetsMake
NSEndHashTableEnumeration
NSEndMapTableEnumeration
NSEnumerateHashTable
NSEnumerateMapTable
NSEqualPoints
NSEqualRanges
NSEqualRects
NSEqualSizes
NSExtraRefCount
NSFileTypeForHFSTypeCode
NSFrameAddress
NSFreeHashTable
NSFreeMapTable
NSFullUserName
NSGetSizeAndAlignment
NSGetUncaughtExceptionHandler
NSHFSTypeCodeFromFileType
NSHFSTypeOfFile
NSHashGet
NSHashInsert
NSHashInsertIfAbsent
NSHashInsertKnownAbsent
NSHashRemove
NSHeight
NSHomeDirectory
NSHomeDirectoryForUser
NSHostByteOrder
NSIncrementExtraRefCount
NSInsetRect
NSIntegralRect
NSIntegralRectWithOptions
NSIntersectionRange
NSIntersectionRect
NSIntersectsRect
NSIsEmptyRect
NSLocationInRange
NSLock_error_handler
NSLog
NSLogPageSize
NSLog_printf_handler
NSLogv
NSMakeCollectable
NSMakePoint
NSMakeRange
NSMakeRect
NSMakeSize
NSMapGet
NSMapInsert
NSMapInsertIfAbsent
NSMapInsertKnownAbsent
NSMapMember
NSMapRemove
NSMaxRange
NSMaxX
NSMaxY
NSMidX
NSMidY
NSMinX
NSMinY
NSMouseInRect
NSNextHashEnumeratorItem
NSNextMapEnumeratorPair
NSOffsetRect
NSOpenStepRootDirectory
NSPageSize
NSPointFromCGPoint
NSPointFromString
NSPointInRect
NSPointToCGPoint
NSProtocolFromString
NSRangeFromString
NSRealMemoryAvailable
NSReallocateCollectable
NSRectFromCGRect
NSRectFromString
NSRectToCGRect
NSRecycleZone
NSResetHashTable
NSResetMapTable
NSReturnAddress
NSRoundDownToMultipleOfPageSize
NSRoundUpToMultipleOfPageSize
NSSearchPathForDirectoriesInDomains
NSSelectorFromString
NSSetUncaughtExceptionHandler
NSSetZoneName
NSShouldRetainWithZone
NSSizeFromCGSize
NSSizeFromString
NSSizeToCGSize
NSStandardApplicationPaths
NSStandardLibraryPaths
NSStringFromClass
NSStringFromHashTable
NSStringFromMapTable
NSStringFromPoint
NSStringFromProtocol
NSStringFromRange
NSStringFromRect
NSStringFromSelector
NSStringFromSize
NSSwapBigDoubleToHost
NSSwapBigFloatToHost
NSSwapBigIntToHost
NSSwapBigLongLongToHost
NSSwapBigLongToHost
NSSwapBigShortToHost
NSSwapDouble
NSSwapFloat
NSSwapHostDoubleToBig
NSSwapHostDoubleToLittle
NSSwapHostFloatToBig
NSSwapHostFloatToLittle
NSSwapHostIntToBig
NSSwapHostIntToLittle
NSSwapHostLongLongToBig
NSSwapHostLongLongToLittle
NSSwapHostLongToBig
NSSwapHostLongToLittle
NSSwapHostShortToBig
NSSwapHostShortToLittle
NSSwapInt
NSSwapLittleDoubleToHost
NSSwapLittleFloatToHost
NSSwapLittleIntToHost
NSSwapLittleLongLongToHost
NSSwapLittleLongToHost
NSSwapLittleShortToHost
NSSwapLong
NSSwapLongLong
NSSwapShort
NSTemporaryDirectory
NSUncaughtExceptionHandler
NSUnionRange
NSUnionRect
NSUserName
NSWidth
NSZoneCalloc
NSZoneCheck
NSZoneFree
NSZoneFromPointer
NSZoneMalloc
NSZoneName
NSZoneRealloc
NSZoneStats
_NSAddHandler
_NSRangeExceptionRaise
_NSRemoveHandler
_gcc3_1_hack
gs_consumed

### Macros

FOUNDATION_EXPORT
GS_API_LATEST
GS_API_MACOSX
GS_API_NONE
GS_API_OPENSTEP
GS_API_OSSPEC
GS_API_VERSION
GS_CLANG_MINREQ
GS_DEPRECATED_FUNC
GS_EXPOSE
GS_GCC_MINREQ
GS_NORETURN_METHOD
GS_UNIMPLEMENTED
GS_UNUSED_ARG
GS_UNUSED_FUNC
GS_UNUSED_IVAR
MAC_OS_X_VERSION_MAX_ALLOWED
NSAssert
NSAssert1
NSAssert2
NSAssert3
NSAssert4
NSAssert5
NSCAssert
NSCAssert1
NSCAssert2
NSCAssert3
NSCAssert4
NSCAssert5
NSCParameterAssert
NSDecimalMaxDigit
NSDecimalMaxSize
NSDecimalNoScale
NSLocalizedString
NSLocalizedStringFromTable
NSLocalizedStringFromTableInBundle
NSParameterAssert
NS_AVAILABLE
NS_AVAILABLE_MAC
NS_CLASS_AVAILABLE
NS_CLASS_AVAILABLE_MAC
NS_CLASS_DEPRECATED
NS_CLASS_DEPRECATED_MAC
NS_CONSUMED
NS_CONSUMES_SELF
NS_DEPRECATED
NS_DEPRECATED_MAC
NS_DESIGNATED_INITIALIZER
NS_ENUM_AVAILABLE
NS_ENUM_AVAILABLE_MAC
NS_ENUM_DEPRECATED
NS_ENUM_DEPRECATED_MAC
NS_INVOCATION
NS_MESSAGE
NS_RETURNS_NOT_RETAINED
NS_RETURNS_RETAINED
NS_ROOT_CLASS
NS_UNAVAILABLE
OS_API_VERSION
__has_feature

### Types

GSDebugAllocationTraceFunction
GSFileWrapperType
GSRegexEnumerationCallback
NSActivityOptions
NSAlignmentOptions
NSAttributedStringKey
NSBackgroundActivityResult
NSBinarySearchingOptions
NSByteCountFormatterCountStyle
NSByteCountFormatterUnits
NSByteOrder
NSCalculationError
NSCalendarOptions
NSCalendarUnit
NSComparisonPredicateModifier
NSComparisonPredicateOptions
NSComparisonResult
NSCompoundPredicateType
NSDataBase64DecodingOptions
NSDataBase64EncodingOptions
NSDataSearchOptions
NSDateComponentsFormatterUnitsStyle
NSDateComponentsFormatterZeroFormattingBehavior
NSDateFormatterBehavior
NSDateFormatterStyle
NSDateIntervalFormatterStyle
NSDirectoryEnumerationOptions
NSEnergyFormatterUnit
NSEnumerationOptions
NSErrorDomain
NSExceptionName
NSExpressionType
NSFileCoordinatorReadingOptions
NSFileCoordinatorWritingOptions
NSFileVersionAddingOptions
NSFileVersionReplacingOptions
NSFileWrapperReadingOptions
NSFileWrapperWritingOptions
NSFormattingContext
NSFormattingUnitStyle
NSHTTPCookieAcceptPolicy
NSHashTableOptions
NSISO8601DateFormatOptions
NSInteger
NSItemProviderErrorCode
NSItemProviderFileOptions
NSItemProviderRepresentationVisibility
NSJSONReadingOptions
NSJSONWritingOptions
NSKeyValueChange
NSKeyValueChangeKey
NSKeyValueObservingOptions
NSKeyValueSetMutationKind
NSLengthFormatterUnit
NSLinguisticTag
NSLinguisticTagScheme
NSLinguisticTaggerOptions
NSLinguisticTaggerUnit
NSLocaleLanguageDirection
NSMapTableOptions
NSMapTableValueCallBacks
NSMassFormatterUnit
NSMatchingFlags
NSMatchingOptions
NSMeasurementFormatterUnitOptions
NSNetServiceOptions
NSNetServicesError
NSNotificationCoalescing
NSNotificationName
NSNotificationSuspensionBehavior
NSNumberFormatterBehavior
NSNumberFormatterPadPosition
NSNumberFormatterRoundingMode
NSNumberFormatterStyle
NSOperationQueuePriority
NSPersonNameComponentsFormatterOptions
NSPersonNameComponentsFormatterStyle
NSPoint
NSPointArray
NSPointPointer
NSPointerFunctionsOptions
NSPostingStyle
NSPredicateOperatorType
NSProgressFileOperationKind
NSProgressKind
NSProgressUserInfoKey
NSPropertyListFormat
NSPropertyListMutabilityOptions
NSPropertyListReadOptions
NSPropertyListWriteOptions
NSQualityOfService
NSRange
NSRangePointer
NSRect
NSRectArray
NSRectEdge
NSRectPointer
NSRegularExpressionOptions
NSRoundingMode
NSRunLoopMode
NSSearchPathDirectory
NSSearchPathDomainMask
NSSize
NSSizeArray
NSSizePointer
NSSocketNativeHandle
NSSortOptions
NSStreamEvent
NSStreamStatus
NSStringCompareOptions
NSStringEncoding
NSStringEncodingConversionOptions
NSStringEnumerationOptions
NSSwappedDouble
NSSwappedFloat
NSTaskTerminationReason
NSTextCheckingType
NSTextCheckingTypes
NSTimeInterval
NSTimeZoneNameStyle
NSUInteger
NSURLBookmarkResolutionOptions
NSURLCacheStoragePolicy
NSURLCredentialPersistence
NSURLHandleStatus
NSURLRequestCachePolicy
NSURLRequestNetworkServiceType
NSURLSessionAuthChallengeDisposition
NSURLSessionResponseDisposition
NSURLSessionTaskState
NSUserNotificationActivationType
NSXMLDTDNodeKind
NSXMLDocumentContentKind
NSXMLNodeKind
NSXMLParserError
NSXPCConnectionOptions
NSZone
OSType
RunLoopEventType
_NSObjCValueType
gid_t
gsuuid_t
pid_t
struct NSEdgeInsets
struct _NSHandler
struct _NSHashTableCallBacks
struct _NSMapTableKeyCallBacks
struct autorelease_array_list
struct autorelease_thread_vars
uid_t
unichar

### Variables

NSCocoaErrorDomain
NSDeallocateZombies
NSDebugEnabled
NSDefaultRunLoopMode
NSLinguisticTagAdjective
NSLinguisticTagAdverb
NSLinguisticTagClassifier
NSLinguisticTagCloseParenthesis
NSLinguisticTagCloseQuote
NSLinguisticTagConjunction
NSLinguisticTagDash
NSLinguisticTagDeterminer
NSLinguisticTagIdiom
NSLinguisticTagInterjection
NSLinguisticTagNoun
NSLinguisticTagNumber
NSLinguisticTagOpenParenthesis
NSLinguisticTagOpenQuote
NSLinguisticTagOrganizationName
NSLinguisticTagOther
NSLinguisticTagOtherPunctuation
NSLinguisticTagOtherWhitespace
NSLinguisticTagOtherWord
NSLinguisticTagParagraphBreak
NSLinguisticTagParticle
NSLinguisticTagPersonalName
NSLinguisticTagPlaceName
NSLinguisticTagPreposition
NSLinguisticTagPronoun
NSLinguisticTagPunctuation
NSLinguisticTagSchemeLanguage
NSLinguisticTagSchemeLemma
NSLinguisticTagSchemeLexicalClass
NSLinguisticTagSchemeNameType
NSLinguisticTagSchemeNameTypeOrLexicalClass
NSLinguisticTagSchemeScript
NSLinguisticTagSchemeTokenType
NSLinguisticTagSentenceTerminator
NSLinguisticTagVerb
NSLinguisticTagWhitespace
NSLinguisticTagWord
NSLinguisticTagWordJoiner
NSMACHErrorDomain
NSOSStatusErrorDomain
NSPOSIXErrorDomain
NSRunLoopCommonModes
NSZombieEnabled
_NSConstantStringClassReference
_NSLock_error_handler
_NSLogDescriptor
_NSLog_printf_handler
enum _NSDirectoryEnumerationOptions
struct NSZoneStats
struct _NSMapTableValueCallBacks
struct _NSNotificationQueueList
struct _NSRange

Up

# Types and Constants

### Authors

Richard Frith-Macdonald

Copyright: (C) 2005 Free Software Foundation, Inc.

### Contents -

1. Type index
2. Variable index
3. Constant index
4. NSArchiver constants
5. NSBundle constants
6. NSCalendar constants
7. NSClassDescription constants
8. NSConnection constants
9. NSDate constants
10. NSDistributedNotificationCenter constants
11. NSError constants
12. NSException constants
13. NSExtensionContext constants
14. NSExtensionItem constants
15. NSFileHandle constants
16. NSFileManager constants
17. NSGeometry constants
18. NSHashTable constants
19. NSHTTPCookie constants
20. NSHTTPCookieStorage constants
21. NSInvocationOperation constants
22. NSItemProvider constants
23. NSKeyedArchiver constants
24. NSKeyValueCoding constants
25. NSKeyValueObserving constants
26. NSLocale constants
27. NSMapTable constants
28. NSMetadataAttributes constants
29. NSMetadata constants
30. NSNetServices constants
31. NSPersonNameComponentsFormatter constants
32. NSPort constants
33. NSRegularExpression constants
34. NSSpellServer constants
35. NSStream constants
36. NSTask constants
37. NSThread constants
38. NSTimeZone constants
39. NSUbiquitousKeyValueStore constants
40. NSUndoManager constants
41. NSURLCredentialStorage constants
42. NSURLError constants
43. NSURL constants
44. NSURLHandle constants
45. NSURLProtectionSpace constants
46. NSURLSession constants
47. NSUserDefaults constants
48. NSUserNotification constants
49. NSValueTransformer constants
50. NSXMLParser constants
51. NSArray types
52. NSAttributedString types
53. NSAutoreleasePool types
54. NSBackgroundActivityScheduler types
55. NSByteCountFormatter types
56. NSByteOrder types
57. NSCalendar types
58. NSComparisonPredicate types
59. NSCompoundPredicate types
60. NSData types
61. NSDateComponentsFormatter types
62. NSDateFormatter types
63. NSDate types
64. NSDateIntervalFormatter types
65. NSDebug types
66. NSDecimal types
67. NSDistributedNotificationCenter types
68. NSEnergyFormatter types
69. NSError types
70. NSException types
71. NSExpression types
72. NSFileCoordinator types
73. NSFileManager types
74. NSFileVersion types
75. NSFileWrapper types
76. NSFormatter types
77. NSGeometry types
78. NSHashTable types
79. NSHTTPCookieStorage types
80. NSInvocation types
81. NSISO8601DateFormatter types
82. NSItemProvider types
83. NSJSONSerialization types
84. NSKeyValueObserving types
85. NSLengthFormatter types
86. NSLinguisticTagger types
87. NSLocale types
88. NSMapTable types
89. NSMassFormatter types
90. NSMeasurementFormatter types
91. NSNetServices types
92. NSNotification types
93. NSNotificationQueue types
94. NSNumberFormatter types
95. NSObjCRuntime types
96. NSOperation types
97. NSPathUtilities types
98. NSPersonNameComponentsFormatter types
99. NSPointerFunctions types
100. NSPort types
101. NSProcessInfo types
102. NSProgress types
103. NSPropertyList types
104. NSRange types
105. NSRegularExpression types
106. NSRunLoop types
107. NSStream types
108. NSString types
109. NSTask types
110. NSTextCheckingResult types
111. NSTimeZone types
112. NSURLCache types
113. NSURLCredential types
114. NSURL types
115. NSURLHandle types
116. NSURLRequest types
117. NSURLSession types
118. NSUserNotification types
119. NSUUID types
120. NSXMLDocument types
121. NSXMLDTDNode types
122. NSXMLNode types
123. NSXMLParser types
124. NSXPCConnection types
125. NSZone types
126. NSDebug variables
127. NSError variables
128. NSFileManager variables
129. NSLinguisticTagger variables
130. NSLock variables
131. NSMapTable variables
132. NSNotificationQueue variables
133. NSObjCRuntime variables
134. NSRange variables
135. NSRunLoop variables
136. NSString variables
137. NSZone variables

# Type index

### Type

- GSDebugAllocationTraceFunction
- GSFileWrapperType
- GSRegexEnumerationCallback
- NSActivityOptions
- NSAlignmentOptions
- NSAttributedStringKey
- NSBackgroundActivityResult
- NSBinarySearchingOptions
- NSByteCountFormatterCountStyle
- NSByteCountFormatterUnits
- NSByteOrder
- NSCalculationError
- NSCalendarOptions
- NSCalendarUnit
- NSComparisonPredicateModifier
- NSComparisonPredicateOptions
- NSComparisonResult
- NSCompoundPredicateType
- NSDataBase64DecodingOptions
- NSDataBase64EncodingOptions
- NSDataSearchOptions
- NSDateComponentsFormatterUnitsStyle
- NSDateComponentsFormatterZeroFormattingBehavior
- NSDateFormatterBehavior
- NSDateFormatterStyle
- NSDateIntervalFormatterStyle
- NSDirectoryEnumerationOptions
- NSEnergyFormatterUnit
- NSEnumerationOptions
- NSErrorDomain
- NSExceptionName
- NSExpressionType
- NSFileCoordinatorReadingOptions
- NSFileCoordinatorWritingOptions
- NSFileVersionAddingOptions
- NSFileVersionReplacingOptions
- NSFileWrapperReadingOptions
- NSFileWrapperWritingOptions
- NSFormattingContext
- NSFormattingUnitStyle
- NSHTTPCookieAcceptPolicy
- NSHashTableOptions
- NSISO8601DateFormatOptions
- NSInteger
- NSItemProviderErrorCode
- NSItemProviderFileOptions
- NSItemProviderRepresentationVisibility
- NSJSONReadingOptions
- NSJSONWritingOptions
- NSKeyValueChange
- NSKeyValueChangeKey
- NSKeyValueObservingOptions
- NSKeyValueSetMutationKind
- NSLengthFormatterUnit
- NSLinguisticTag
- NSLinguisticTagScheme
- NSLinguisticTaggerOptions
- NSLinguisticTaggerUnit
- NSLocaleLanguageDirection
- NSMapTableOptions
- NSMapTableValueCallBacks
- NSMassFormatterUnit
- NSMatchingFlags
- NSMatchingOptions
- NSMeasurementFormatterUnitOptions
- NSNetServiceOptions
- NSNetServicesError
- NSNotificationCoalescing
- NSNotificationName
- NSNotificationSuspensionBehavior
- NSNumberFormatterBehavior
- NSNumberFormatterPadPosition
- NSNumberFormatterRoundingMode
- NSNumberFormatterStyle
- NSOperationQueuePriority
- NSPersonNameComponentsFormatterOptions
- NSPersonNameComponentsFormatterStyle
- NSPoint
- NSPointArray
- NSPointPointer
- NSPointerFunctionsOptions
- NSPostingStyle
- NSPredicateOperatorType
- NSProgressFileOperationKind
- NSProgressKind
- NSProgressUserInfoKey
- NSPropertyListFormat
- NSPropertyListMutabilityOptions
- NSPropertyListReadOptions
- NSPropertyListWriteOptions
- NSQualityOfService
- NSRange
- NSRangePointer
- NSRect
- NSRectArray
- NSRectEdge
- NSRectPointer
- NSRegularExpressionOptions
- NSRoundingMode
- NSRunLoopMode
- NSSearchPathDirectory
- NSSearchPathDomainMask
- NSSize
- NSSizeArray
- NSSizePointer
- NSSocketNativeHandle
- NSSortOptions
- NSStreamEvent
- NSStreamStatus
- NSStringCompareOptions
- NSStringEncoding
- NSStringEncodingConversionOptions
- NSStringEnumerationOptions
- NSSwappedDouble
- NSSwappedFloat
- NSTaskTerminationReason
- NSTextCheckingType
- NSTextCheckingTypes
- NSTimeInterval
- NSTimeZoneNameStyle
- NSUInteger
- NSURLBookmarkResolutionOptions
- NSURLCacheStoragePolicy
- NSURLCredentialPersistence
- NSURLHandleStatus
- NSURLRequestCachePolicy
- NSURLRequestNetworkServiceType
- NSURLSessionAuthChallengeDisposition
- NSURLSessionResponseDisposition
- NSURLSessionTaskState
- NSUserNotificationActivationType
- NSXMLDTDNodeKind
- NSXMLDocumentContentKind
- NSXMLNodeKind
- NSXMLParserError
- NSXPCConnectionOptions
- NSZone
- OSType
- RunLoopEventType
- _NSObjCValueType
- gid_t
- gsuuid_t
- pid_t
- struct NSEdgeInsets
- struct _NSHandler
- struct _NSHashTableCallBacks
- struct _NSMapTableKeyCallBacks
- struct autorelease_array_list
- struct autorelease_thread_vars
- uid_t
- unichar

# Variable index

### Variable

- NSCocoaErrorDomain
- NSDeallocateZombies
- NSDebugEnabled
- NSDefaultRunLoopMode
- NSLinguisticTagAdjective
- NSLinguisticTagAdverb
- NSLinguisticTagClassifier
- NSLinguisticTagCloseParenthesis
- NSLinguisticTagCloseQuote
- NSLinguisticTagConjunction
- NSLinguisticTagDash
- NSLinguisticTagDeterminer
- NSLinguisticTagIdiom
- NSLinguisticTagInterjection
- NSLinguisticTagNoun
- NSLinguisticTagNumber
- NSLinguisticTagOpenParenthesis
- NSLinguisticTagOpenQuote
- NSLinguisticTagOrganizationName
- NSLinguisticTagOther
- NSLinguisticTagOtherPunctuation
- NSLinguisticTagOtherWhitespace
- NSLinguisticTagOtherWord
- NSLinguisticTagParagraphBreak
- NSLinguisticTagParticle
- NSLinguisticTagPersonalName
- NSLinguisticTagPlaceName
- NSLinguisticTagPreposition
- NSLinguisticTagPronoun
- NSLinguisticTagPunctuation
- NSLinguisticTagSchemeLanguage
- NSLinguisticTagSchemeLemma
- NSLinguisticTagSchemeLexicalClass
- NSLinguisticTagSchemeNameType
- NSLinguisticTagSchemeNameTypeOrLexicalClass
- NSLinguisticTagSchemeScript
- NSLinguisticTagSchemeTokenType
- NSLinguisticTagSentenceTerminator
- NSLinguisticTagVerb
- NSLinguisticTagWhitespace
- NSLinguisticTagWord
- NSLinguisticTagWordJoiner
- NSMACHErrorDomain
- NSOSStatusErrorDomain
- NSPOSIXErrorDomain
- NSRunLoopCommonModes
- NSZombieEnabled
- _NSConstantStringClassReference
- _NSLock_error_handler
- _NSLogDescriptor
- _NSLog_printf_handler
- enum _NSDirectoryEnumerationOptions
- struct NSZoneStats
- struct _NSMapTableValueCallBacks
- struct _NSNotificationQueueList
- struct _NSRange

# Constant index

### Constant

- GSCACertificateFilePath
- GSConfigDomain
- GSFileHandleConnectCompletionNotification
- GSFileHandleNotificationError
- GSFileHandleWriteCompletionNotification
- GSHTTPPropertyCertificateFileKey
- GSHTTPPropertyKeyFileKey
- GSHTTPPropertyLocalHostKey
- GSHTTPPropertyMethodKey
- GSHTTPPropertyPasswordKey
- GSHTTPPropertyProxyHostKey
- GSHTTPPropertyProxyPortKey
- GSLocale
- GSNetworkNotificationCenterType
- GSPublicNotificationCenterType
- GSTLSCAFile
- GSTLSCertificateFile
- GSTLSCertificateKeyFile
- GSTLSCertificateKeyPassword
- GSTLSDebug
- GSTLSIssuers
- GSTLSOwners
- GSTLSPriority
- GSTLSRemoteHosts
- GSTLSRevokeFile
- GSTLSServerName
- GSTLSVerify
- NSAMPMDesignation
- NSArgumentDomain
- NSAssertionHandlerKey
- NSBuddhistCalendar
- NSBundleDidLoadNotification
- NSCalendarIdentifierBuddhist
- NSCalendarIdentifierChinese
- NSCalendarIdentifierCoptic
- NSCalendarIdentifierEthiopicAmeteAlem
- NSCalendarIdentifierEthiopicAmeteMihret
- NSCalendarIdentifierGregorian
- NSCalendarIdentifierHebrew
- NSCalendarIdentifierISO8601
- NSCalendarIdentifierIndian
- NSCalendarIdentifierIslamic
- NSCalendarIdentifierIslamicCivil
- NSCalendarIdentifierIslamicTabular
- NSCalendarIdentifierIslamicUmmAlQura
- NSCalendarIdentifierJapanese
- NSCalendarIdentifierPersian
- NSCalendarIdentifierRepublicOfChina
- NSCharacterConversionException
- NSChineseCalendar
- NSClassDescriptionNeededForClassNotification
- NSConnectionDidDieNotification
- NSConnectionDidInitializeNotification
- NSConnectionLocalCount
- NSConnectionProxyCount
- NSConnectionRepliesReceived
- NSConnectionRepliesSent
- NSConnectionReplyMode
- NSConnectionRequestsReceived
- NSConnectionRequestsSent
- NSCurrencyString
- NSCurrencySymbol
- NSCurrentLocaleDidChangeNotification
- NSDateFormatString
- NSDateTimeOrdering
- NSDecimalDigits
- NSDecimalSeparator
- NSDestinationInvalidException
- NSEarlierTimeDesignations
- NSEdgeInsetsZero
- NSErrorFailingURLStringKey
- NSExtensionHostDidBecomeActiveNotification
- NSExtensionHostDidEnterBackgroundNotification
- NSExtensionHostWillEnterForegroundNotification
- NSExtensionHostWillResignActiveNotification
- NSExtensionItemAttachmentsKey
- NSExtensionItemAttributedContentTextKey
- NSExtensionItemAttributedTitleKey
- NSExtensionItemsAndErrorsKey
- NSExtensionJavaScriptFinalizeArgumentKey
- NSExtensionJavaScriptPreprocessingResultsKey
- NSFailedAuthenticationException
- NSFileAppendOnly
- NSFileCreationDate
- NSFileDeviceIdentifier
- NSFileExtensionHidden
- NSFileGroupOwnerAccountID
- NSFileGroupOwnerAccountName
- NSFileHFSCreatorCode
- NSFileHFSTypeCode
- NSFileHandleConnectionAcceptedNotification
- NSFileHandleDataAvailableNotification
- NSFileHandleNotificationDataItem
- NSFileHandleNotificationFileHandleItem
- NSFileHandleNotificationMonitorModes
- NSFileHandleOperationException
- NSFileHandleReadCompletionNotification
- NSFileHandleReadToEndOfFileCompletionNotification
- NSFileImmutable
- NSFileModificationDate
- NSFileOwnerAccountID
- NSFileOwnerAccountName
- NSFilePathErrorKey
- NSFilePosixPermissions
- NSFileReferenceCount
- NSFileSize
- NSFileSystemFileNumber
- NSFileSystemFreeNodes
- NSFileSystemFreeSize
- NSFileSystemNodes
- NSFileSystemNumber
- NSFileSystemSize
- NSFileType
- NSFileTypeBlockSpecial
- NSFileTypeCharacterSpecial
- NSFileTypeDirectory
- NSFileTypeFifo
- NSFileTypeRegular
- NSFileTypeSocket
- NSFileTypeSymbolicLink
- NSFileTypeUnknown
- NSFormalName
- NSGenericException
- NSGlobalDomain
- NSGrammarCorrections
- NSGrammarRange
- NSGrammarUserDescription
- NSGregorianCalendar
- NSHTTPCookieComment
- NSHTTPCookieCommentURL
- NSHTTPCookieDiscard
- NSHTTPCookieDomain
- NSHTTPCookieExpires
- NSHTTPCookieManagerAcceptPolicyChangedNotification
- NSHTTPCookieManagerCookiesChangedNotification
- NSHTTPCookieMaximumAge
- NSHTTPCookieName
- NSHTTPCookieOriginURL
- NSHTTPCookiePath
- NSHTTPCookiePort
- NSHTTPCookieSecure
- NSHTTPCookieValue
- NSHTTPCookieVersion
- NSHTTPPropertyErrorPageDataKey
- NSHTTPPropertyRedirectionHeadersKey
- NSHTTPPropertyServerHTTPVersionKey
- NSHTTPPropertyStatusCodeKey
- NSHTTPPropertyStatusReasonKey
- NSHebrewCalendar
- NSHourNameDesignations
- NSISO8601Calendar
- NSInconsistentArchiveException
- NSIndianCalendar
- NSIntHashCallBacks
- NSIntMapKeyCallBacks
- NSIntMapValueCallBacks
- NSIntegerHashCallBacks
- NSIntegerMapKeyCallBacks
- NSIntegerMapValueCallBacks
- NSInternalInconsistencyException
- NSInternationalCurrencyString
- NSInvalidArchiveOperationException
- NSInvalidArgumentException
- NSInvalidReceivePortException
- NSInvalidSendPortException
- NSInvalidUnarchiveOperationException
- NSInvocationOperationCancelledException
- NSInvocationOperationVoidResultException
- NSIsNilTransformerName
- NSIsNotNilTransformerName
- NSIslamicCalendar
- NSIslamicCivilCalendar
- NSItemProviderErrorDomain
- NSItemProviderPreferredImageSizeKey
- NSJapaneseCalendar
- NSKeyValueChangeIndexesKey
- NSKeyValueChangeKindKey
- NSKeyValueChangeNewKey
- NSKeyValueChangeNotificationIsPriorKey
- NSKeyValueChangeOldKey
- NSLanguageCode
- NSLanguageName
- NSLaterTimeDesignations
- NSLoadedClasses
- NSLocalNotificationCenterType
- NSLocaleAlternateQuotationBeginDelimiterKey
- NSLocaleAlternateQuotationEndDelimiterKey
- NSLocaleCalendar
- NSLocaleCalendarIdentifier
- NSLocaleCollationIdentifier
- NSLocaleCollatorIdentifier
- NSLocaleCountryCode
- NSLocaleCurrencyCode
- NSLocaleCurrencySymbol
- NSLocaleDecimalSeparator
- NSLocaleExemplarCharacterSet
- NSLocaleGroupingSeparator
- NSLocaleIdentifier
- NSLocaleLanguageCode
- NSLocaleMeasurementSystem
- NSLocaleQuotationBeginDelimiterKey
- NSLocaleQuotationEndDelimiterKey
- NSLocaleScriptCode
- NSLocaleUsesMetricSystem
- NSLocaleVariantCode
- NSLocalizedDescriptionKey
- NSLocalizedFailureReasonErrorKey
- NSLocalizedRecoveryOptionsErrorKey
- NSLocalizedRecoverySuggestionErrorKey
- NSMallocException
- NSMatchingAnchored
- NSMatchingCompleted
- NSMatchingHitEnd
- NSMatchingInternalError
- NSMatchingProgress
- NSMatchingReportCompletion
- NSMatchingReportProgress
- NSMatchingRequiredEnd
- NSMatchingWithTransparentBounds
- NSMatchingWithoutAnchoringBounds
- NSMetadataItemAcquisitionMakeKey
- NSMetadataItemAcquisitionModelKey
- NSMetadataItemAlbumKey
- NSMetadataItemAltitudeKey
- NSMetadataItemApertureKey
- NSMetadataItemAppleLoopDescriptorsKey
- NSMetadataItemAppleLoopsKeyFilterTypeKey
- NSMetadataItemAppleLoopsLoopModeKey
- NSMetadataItemAppleLoopsRootKeyKey
- NSMetadataItemApplicationCategoriesKey
- NSMetadataItemAttributeChangeDateKey
- NSMetadataItemAudiencesKey
- NSMetadataItemAudioBitRateKey
- NSMetadataItemAudioChannelCountKey
- NSMetadataItemAudioEncodingApplicationKey
- NSMetadataItemAudioSampleRateKey
- NSMetadataItemAudioTrackNumberKey
- NSMetadataItemAuthorAddressesKey
- NSMetadataItemAuthorEmailAddressesKey
- NSMetadataItemAuthorsKey
- NSMetadataItemBitsPerSampleKey
- NSMetadataItemCFBundleIdentifierKey
- NSMetadataItemCameraOwnerKey
- NSMetadataItemCityKey
- NSMetadataItemCodecsKey
- NSMetadataItemColorSpaceKey
- NSMetadataItemCommentKey
- NSMetadataItemComposerKey
- NSMetadataItemContactKeywordsKey
- NSMetadataItemContentCreationDateKey
- NSMetadataItemContentModificationDateKey
- NSMetadataItemContentTypeKey
- NSMetadataItemContentTypeTreeKey
- NSMetadataItemContributorsKey
- NSMetadataItemCopyrightKey
- NSMetadataItemCountryKey
- NSMetadataItemCoverageKey
- NSMetadataItemCreatorKey
- NSMetadataItemDateAddedKey
- NSMetadataItemDeliveryTypeKey
- NSMetadataItemDescriptionKey
- NSMetadataItemDirectorKey
- NSMetadataItemDisplayNameKey
- NSMetadataItemDownloadedDateKey
- NSMetadataItemDueDateKey
- NSMetadataItemDurationSecondsKey
- NSMetadataItemEXIFGPSVersionKey
- NSMetadataItemEXIFVersionKey
- NSMetadataItemEditorsKey
- NSMetadataItemEmailAddressesKey
- NSMetadataItemEncodingApplicationsKey
- NSMetadataItemExecutableArchitecturesKey
- NSMetadataItemExecutablePlatformKey
- NSMetadataItemExposureModeKey
- NSMetadataItemExposureProgramKey
- NSMetadataItemExposureTimeSecondsKey
- NSMetadataItemExposureTimeStringKey
- NSMetadataItemFNumberKey
- NSMetadataItemFSContentChangeDateKey
- NSMetadataItemFSCreationDateKey
- NSMetadataItemFSNameKey
- NSMetadataItemFSSizeKey
- NSMetadataItemFinderCommentKey
- NSMetadataItemFlashOnOffKey
- NSMetadataItemFocalLength35mmKey
- NSMetadataItemFocalLengthKey
- NSMetadataItemFontsKey
- NSMetadataItemGPSAreaInformationKey
- NSMetadataItemGPSDOPKey
- NSMetadataItemGPSDateStampKey
- NSMetadataItemGPSDestBearingKey
- NSMetadataItemGPSDestDistanceKey
- NSMetadataItemGPSDestLatitudeKey
- NSMetadataItemGPSDestLongitudeKey
- NSMetadataItemGPSDifferentalKey
- NSMetadataItemGPSMapDatumKey
- NSMetadataItemGPSMeasureModeKey
- NSMetadataItemGPSProcessingMethodKey
- NSMetadataItemGPSStatusKey
- NSMetadataItemGPSTrackKey
- NSMetadataItemGenreKey
- NSMetadataItemHasAlphaChannelKey
- NSMetadataItemHeadlineKey
- NSMetadataItemISOSpeedKey
- NSMetadataItemIdentifierKey
- NSMetadataItemImageDirectionKey
- NSMetadataItemInformationKey
- NSMetadataItemInstantMessageAddressesKey
- NSMetadataItemInstructionsKey
- NSMetadataItemIsApplicationManagedKey
- NSMetadataItemIsGeneralMIDISequenceKey
- NSMetadataItemIsLikelyJunkKey
- NSMetadataItemIsUbiquitousKey
- NSMetadataItemKeySignatureKey
- NSMetadataItemKeywordsKey
- NSMetadataItemKindKey
- NSMetadataItemLanguagesKey
- NSMetadataItemLastUsedDateKey
- NSMetadataItemLatitudeKey
- NSMetadataItemLayerNamesKey
- NSMetadataItemLensModelKey
- NSMetadataItemLongitudeKey
- NSMetadataItemLyricistKey
- NSMetadataItemMaxApertureKey
- NSMetadataItemMediaTypesKey
- NSMetadataItemMeteringModeKey
- NSMetadataItemMusicalGenreKey
- NSMetadataItemMusicalInstrumentCategoryKey
- NSMetadataItemMusicalInstrumentNameKey
- NSMetadataItemNamedLocationKey
- NSMetadataItemNumberOfPagesKey
- NSMetadataItemOrganizationsKey
- NSMetadataItemOrientationKey
- NSMetadataItemOriginalFormatKey
- NSMetadataItemOriginalSourceKey
- NSMetadataItemPageHeightKey
- NSMetadataItemPageWidthKey
- NSMetadataItemParticipantsKey
- NSMetadataItemPathKey
- NSMetadataItemPerformersKey
- NSMetadataItemPhoneNumbersKey
- NSMetadataItemPixelCountKey
- NSMetadataItemPixelHeightKey
- NSMetadataItemPixelWidthKey
- NSMetadataItemProducerKey
- NSMetadataItemProfileNameKey
- NSMetadataItemProjectsKey
- NSMetadataItemPublishersKey
- NSMetadataItemRecipientAddressesKey
- NSMetadataItemRecipientEmailAddressesKey
- NSMetadataItemRecipientsKey
- NSMetadataItemRecordingDateKey
- NSMetadataItemRecordingYearKey
- NSMetadataItemRedEyeOnOffKey
- NSMetadataItemResolutionHeightDPIKey
- NSMetadataItemResolutionWidthDPIKey
- NSMetadataItemRightsKey
- NSMetadataItemSecurityMethodKey
- NSMetadataItemSpeedKey
- NSMetadataItemStarRatingKey
- NSMetadataItemStateOrProvinceKey
- NSMetadataItemStreamableKey
- NSMetadataItemSubjectKey
- NSMetadataItemTempoKey
- NSMetadataItemTextContentKey
- NSMetadataItemThemeKey
- NSMetadataItemTimeSignatureKey
- NSMetadataItemTimestampKey
- NSMetadataItemTitleKey
- NSMetadataItemTotalBitRateKey
- NSMetadataItemURLKey
- NSMetadataItemVersionKey
- NSMetadataItemVideoBitRateKey
- NSMetadataItemWhereFromsKey
- NSMetadataItemWhiteBalanceKey
- NSMetadataQueryDidFinishGatheringNotification
- NSMetadataQueryDidStartGatheringNotification
- NSMetadataQueryDidUpdateNotification
- NSMetadataQueryGatheringProgressNotification
- NSMetadataQueryLocalComputerScope
- NSMetadataQueryNetworkScope
- NSMetadataQueryUbiquitousDataScope
- NSMetadataQueryUbiquitousDocumentsScope
- NSMetadataQueryUserHomeScope
- NSMetadataUbiquitousItemContainerDisplayNameKey
- NSMetadataUbiquitousItemDownloadRequestedKey
- NSMetadataUbiquitousItemDownloadingErrorKey
- NSMetadataUbiquitousItemDownloadingStatusCurrent
- NSMetadataUbiquitousItemDownloadingStatusDownloaded
- NSMetadataUbiquitousItemDownloadingStatusKey
- NSMetadataUbiquitousItemDownloadingStatusNotDownloaded
- NSMetadataUbiquitousItemHasUnresolvedConflictsKey
- NSMetadataUbiquitousItemIsDownloadedKey
- NSMetadataUbiquitousItemIsDownloadingKey
- NSMetadataUbiquitousItemIsExternalDocumentKey
- NSMetadataUbiquitousItemIsSharedKey
- NSMetadataUbiquitousItemIsUploadedKey
- NSMetadataUbiquitousItemIsUploadingKey
- NSMetadataUbiquitousItemPercentDownloadedKey
- NSMetadataUbiquitousItemPercentUploadedKey
- NSMetadataUbiquitousItemURLInLocalContainerKey
- NSMetadataUbiquitousItemUploadingErrorKey
- NSMetadataUbiquitousSharedItemCurrentUserPermissionsKey
- NSMetadataUbiquitousSharedItemCurrentUserRoleKey
- NSMetadataUbiquitousSharedItemMostRecentEditorNameComponentsKey
- NSMetadataUbiquitousSharedItemOwnerNameComponentsKey
- NSMetadataUbiquitousSharedItemPermissionsReadOnly
- NSMetadataUbiquitousSharedItemPermissionsReadWrite
- NSMetadataUbiquitousSharedItemRoleOwner
- NSMetadataUbiquitousSharedItemRoleParticipant
- NSMonthNameArray
- NSNegateBooleanTransformerName
- NSNetServicesErrorCode
- NSNetServicesErrorDomain
- NSNextDayDesignations
- NSNextNextDayDesignations
- NSNonOwnedPointerHashCallBacks
- NSNonOwnedPointerMapKeyCallBacks
- NSNonOwnedPointerMapValueCallBacks
- NSNonOwnedPointerOrNullMapKeyCallBacks
- NSNonRetainedObjectHashCallBacks
- NSNonRetainedObjectMapKeyCallBacks
- NSNonRetainedObjectMapValueCallBacks
- NSObjectHashCallBacks
- NSObjectInaccessibleException
- NSObjectMapKeyCallBacks
- NSObjectMapValueCallBacks
- NSObjectNotAvailableException
- NSOldStyleException
- NSOwnedPointerHashCallBacks
- NSOwnedPointerMapKeyCallBacks
- NSOwnedPointerMapValueCallBacks
- NSParseErrorException
- NSPersianCalendar
- NSPersonNameComponentDelimiter
- NSPersonNameComponentFamilyName
- NSPersonNameComponentGivenName
- NSPersonNameComponentKey
- NSPersonNameComponentMiddleName
- NSPersonNameComponentNickname
- NSPersonNameComponentPrefix
- NSPersonNameComponentSuffix
- NSPointerToStructHashCallBacks
- NSPortDidBecomeInvalidNotification
- NSPortReceiveException
- NSPortSendException
- NSPortTimeoutException
- NSPriorDayDesignations
- NSRangeException
- NSRecoveryAttempterErrorKey
- NSRegistrationDomain
- NSRegularExpressionAllowCommentsAndWhitespace
- NSRegularExpressionAnchorsMatchLines
- NSRegularExpressionCaseInsensitive
- NSRegularExpressionDotMatchesLineSeparators
- NSRegularExpressionIgnoreMetacharacters
- NSRegularExpressionUseUnicodeWordBoundaries
- NSRegularExpressionUseUnixLineSeparators
- NSRepublicOfChinaCalendar
- NSShortDateFormatString
- NSShortMonthNameArray
- NSShortTimeDateFormatString
- NSShortWeekDayNameArray
- NSShowNonLocalizedStrings
- NSStreamDataWrittenToMemoryStreamKey
- NSStreamFileCurrentOffsetKey
- NSStreamSOCKSErrorDomain
- NSStreamSOCKSProxyConfigurationKey
- NSStreamSOCKSProxyHostKey
- NSStreamSOCKSProxyPasswordKey
- NSStreamSOCKSProxyPortKey
- NSStreamSOCKSProxyUserKey
- NSStreamSOCKSProxyVersion4
- NSStreamSOCKSProxyVersion5
- NSStreamSOCKSProxyVersionKey
- NSStreamSocketSSLErrorDomain
- NSStreamSocketSecurityLevelKey
- NSStreamSocketSecurityLevelNegotiatedSSL
- NSStreamSocketSecurityLevelNone
- NSStreamSocketSecurityLevelSSLv2
- NSStreamSocketSecurityLevelSSLv3
- NSStreamSocketSecurityLevelTLSv1
- NSStringEncodingErrorKey
- NSSystemClockDidChangeNotification
- NSSystemTimeZoneDidChangeNotification
- NSTaskDidTerminateNotification
- NSThisDayDesignations
- NSThousandsSeparator
- NSThreadDidStartNotification
- NSThreadWillExitNotification
- NSThumbnail1024x1024SizeKey
- NSTimeDateFormatString
- NSTimeFormatString
- NSTimeIntervalSince1970
- NSURLAddedToDirectoryDateKey
- NSURLApplicationIsScriptableKey
- NSURLAttributeModificationDateKey
- NSURLAuthenticationMethodClientCertificate
- NSURLAuthenticationMethodDefault
- NSURLAuthenticationMethodHTMLForm
- NSURLAuthenticationMethodHTTPBasic
- NSURLAuthenticationMethodHTTPDigest
- NSURLAuthenticationMethodNTLM
- NSURLAuthenticationMethodNegotiate
- NSURLAuthenticationMethodServerTrust
- NSURLContentAccessDateKey
- NSURLContentModificationDateKey
- NSURLCreationDateKey
- NSURLCredentialStorageChangedNotification
- NSURLCustomIconKey
- NSURLDocumentIdentifierKey
- NSURLEffectiveIconKey
- NSURLErrorDomain
- NSURLErrorFailingURLErrorKey
- NSURLErrorFailingURLStringErrorKey
- NSURLErrorKey
- NSURLFileAllocatedSizeKey
- NSURLFileResourceIdentifierKey
- NSURLFileResourceTypeBlockSpecial
- NSURLFileResourceTypeCharacterSpecial
- NSURLFileResourceTypeDirectory
- NSURLFileResourceTypeKey
- NSURLFileResourceTypeNamedPipe
- NSURLFileResourceTypeRegular
- NSURLFileResourceTypeSocket
- NSURLFileResourceTypeSymbolicLink
- NSURLFileResourceTypeUnknown
- NSURLFileScheme
- NSURLFileSecurityKey
- NSURLFileSizeKey
- NSURLGenerationIdentifierKey
- NSURLHasHiddenExtensionKey
- NSURLIsAliasFileKey
- NSURLIsApplicationKey
- NSURLIsDirectoryKey
- NSURLIsExcludedFromBackupKey
- NSURLIsExecutableKey
- NSURLIsHiddenKey
- NSURLIsMountTriggerKey
- NSURLIsPackageKey
- NSURLIsReadableKey
- NSURLIsRegularFileKey
- NSURLIsSymbolicLinkKey
- NSURLIsSystemImmutableKey
- NSURLIsUbiquitousItemKey
- NSURLIsUserImmutableKey
- NSURLIsVolumeKey
- NSURLIsWritableKey
- NSURLLabelColorKey
- NSURLLabelNumberKey
- NSURLLinkCountKey
- NSURLLocalizedLabelKey
- NSURLLocalizedNameKey
- NSURLLocalizedTypeDescriptionKey
- NSURLNameKey
- NSURLParentDirectoryURLKey
- NSURLPathKey
- NSURLPreferredIOBlockSizeKey
- NSURLProtectionSpaceFTPProxy
- NSURLProtectionSpaceHTTPProxy
- NSURLProtectionSpaceHTTPSProxy
- NSURLProtectionSpaceSOCKSProxy
- NSURLQuarantinePropertiesKey
- NSURLSessionTaskPriorityDefault
- NSURLSessionTaskPriorityHigh
- NSURLSessionTaskPriorityLow
- NSURLSessionTransferSizeUnknown
- NSURLTagNamesKey
- NSURLTotalFileAllocatedSizeKey
- NSURLTotalFileSizeKey
- NSURLTypeIdentifierKey
- NSURLUbiquitousItemContainerDisplayNameKey
- NSURLUbiquitousItemDownloadRequestedKey
- NSURLUbiquitousItemDownloadingErrorKey
- NSURLUbiquitousItemDownloadingStatusCurrent
- NSURLUbiquitousItemDownloadingStatusDownloaded
- NSURLUbiquitousItemDownloadingStatusKey
- NSURLUbiquitousItemDownloadingStatusNotDownloaded
- NSURLUbiquitousItemHasUnresolvedConflictsKey
- NSURLUbiquitousItemIsDownloadingKey
- NSURLUbiquitousItemIsUploadedKey
- NSURLUbiquitousItemIsUploadingKey
- NSURLUbiquitousItemUploadingErrorKey
- NSURLVolumeAvailableCapacityKey
- NSURLVolumeCreationDateKey
- NSURLVolumeIdentifierKey
- NSURLVolumeIsAutomountedKey
- NSURLVolumeIsBrowsableKey
- NSURLVolumeIsEjectableKey
- NSURLVolumeIsInternalKey
- NSURLVolumeIsJournalingKey
- NSURLVolumeIsLocalKey
- NSURLVolumeIsReadOnlyKey
- NSURLVolumeIsRemovableKey
- NSURLVolumeLocalizedFormatDescriptionKey
- NSURLVolumeLocalizedNameKey
- NSURLVolumeMaximumFileSizeKey
- NSURLVolumeNameKey
- NSURLVolumeResourceCountKey
- NSURLVolumeSupportsAdvisoryFileLockingKey
- NSURLVolumeSupportsCasePreservedNamesKey
- NSURLVolumeSupportsCaseSensitiveNamesKey
- NSURLVolumeSupportsExtendedSecurityKey
- NSURLVolumeSupportsHardLinksKey
- NSURLVolumeSupportsJournalingKey
- NSURLVolumeSupportsPersistentIDsKey
- NSURLVolumeSupportsRenamingKey
- NSURLVolumeSupportsRootDirectoryDatesKey
- NSURLVolumeSupportsSparseFilesKey
- NSURLVolumeSupportsSymbolicLinksKey
- NSURLVolumeSupportsVolumeSizesKey
- NSURLVolumeSupportsZeroRunsKey
- NSURLVolumeTotalCapacityKey
- NSURLVolumeURLForRemountingKey
- NSURLVolumeURLKey
- NSURLVolumeUUIDStringKey
- NSUbiquitousKeyValueStoreChangeReasonKey
- NSUbiquitousKeyValueStoreDidChangeExternallyNotification
- NSUnarchiveFromDataTransformerName
- NSUndefinedKeyException
- NSUnderlyingErrorKey
- NSUndoManagerCheckpointNotification
- NSUndoManagerDidOpenUndoGroupNotification
- NSUndoManagerDidRedoChangeNotification
- NSUndoManagerDidUndoChangeNotification
- NSUndoManagerWillCloseUndoGroupNotification
- NSUndoManagerWillRedoChangeNotification
- NSUndoManagerWillUndoChangeNotification
- NSUserDefaultsDidChangeNotification
- NSUserNotificationDefaultSoundName
- NSWeekDayNameArray
- NSWillBecomeMultiThreadedNotification
- NSXMLParserErrorDomain
- NSYearMonthWeekDesignations
- NSZeroPoint
- NSZeroRect
- NSZeroSize

# NSArchiver constants

### NSInconsistentArchiveException

NSString* const NSInconsistentArchiveException;
Availability: OpenStep
Specified in OpenStep to be raised by NSArchiver or subclasses if there are problems initializing or encoding. Not currently used. NSInternalInconsistencyException usually raised instead.

# NSBundle constants

### NSBundleDidLoadNotification

NSString* const NSBundleDidLoadNotification;
Availability: OpenStep
Notification posted when a bundle is loaded. The notification object is the NSBundle itself. The notification also contains a userInfo dictionary, containing the single key ' `NSLoadedClasses` ', mapped to an NSArray containing the names of each class and category loaded (as strings).

### NSLoadedClasses

NSString* const NSLoadedClasses;
Availability: OpenStep
When an NSBundle loads classes and posts a `NSBundleDidLoadNotification`, its userInfo dictionary contains this key, mapped to an NSArray containing the names of each class and category loaded (as strings).

### NSShowNonLocalizedStrings

NSString* const NSShowNonLocalizedStrings;
Availability: OpenStep
A user default affecting the behavior of [NSBundle -localizedStringForKey:value:table:] . If set, the value of the key will be returned as an uppercase string rather than any localized equivalent found. This can be useful during development to check where a given string in the UI is "coming from".

# NSCalendar constants

### NSCalendarIdentifierBuddhist

NSString* const NSCalendarIdentifierBuddhist;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierChinese

NSString* const NSCalendarIdentifierChinese;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierCoptic

NSString* const NSCalendarIdentifierCoptic;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierEthiopicAmeteAlem

NSString* const NSCalendarIdentifierEthiopicAmeteAlem;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierEthiopicAmeteMihret

NSString* const NSCalendarIdentifierEthiopicAmeteMihret;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierGregorian

NSString* const NSCalendarIdentifierGregorian;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierHebrew

NSString* const NSCalendarIdentifierHebrew;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierISO8601

NSString* const NSCalendarIdentifierISO8601;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierIndian

NSString* const NSCalendarIdentifierIndian;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierIslamic

NSString* const NSCalendarIdentifierIslamic;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierIslamicCivil

NSString* const NSCalendarIdentifierIslamicCivil;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierIslamicTabular

NSString* const NSCalendarIdentifierIslamicTabular;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSCalendarIdentifierIslamicUmmAlQura

NSString* const NSCalendarIdentifierIslamicUmmAlQura;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSCalendarIdentifierJapanese

NSString* const NSCalendarIdentifierJapanese;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierPersian

NSString* const NSCalendarIdentifierPersian;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSCalendarIdentifierRepublicOfChina

NSString* const NSCalendarIdentifierRepublicOfChina;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSClassDescription constants

### NSClassDescriptionNeededForClassNotification

NSString* const NSClassDescriptionNeededForClassNotification;
Availability: MacOS-X 10.0.0
Posted by [NSClassDescription +classDescriptionForClass:] when a class description cannot be found for a class. The implementation will check again after the notification is (synchronously) processed, allowing descriptions to be registered lazily.

# NSConnection constants

### NSConnectionDidDieNotification

NSString* const NSConnectionDidDieNotification;
Availability: OpenStep
Posted when an NSConnection is deallocated or it is notified its port is deactivated. (Note, connections to remote ports don't get such a notification.) Receivers should deregister themselves for notifications from the given connection.

### NSConnectionDidInitializeNotification

NSString* const NSConnectionDidInitializeNotification;
Availability: OpenStep
Posted when an NSConnection is initialized.

### NSConnectionLocalCount

NSString* const NSConnectionLocalCount;
Availability: OpenStep
GNUstep-specific key for dictionary returned by [NSConnection -statistics] : number of local objects currently in use remotely.

### NSConnectionProxyCount

NSString* const NSConnectionProxyCount;
Availability: OpenStep
GNUstep-specific key for dictionary returned by [NSConnection -statistics] : number of remote objects currently in use.

### NSConnectionRepliesReceived

NSString* const NSConnectionRepliesReceived;
Availability: OpenStep
Key for dictionary returned by [NSConnection -statistics] : number of messages replied to so far by the remote connection.

### NSConnectionRepliesSent

NSString* const NSConnectionRepliesSent;
Availability: OpenStep
Key for dictionary returned by [NSConnection -statistics] : number of messages sent so far to the remote connection.

### NSConnectionReplyMode

NSString* const NSConnectionReplyMode;
Availability: OpenStep
NSRunLoop mode for NSConnection objects waiting for replies. Mainly used internally by distributed objects system.

### NSConnectionRequestsReceived

NSString* const NSConnectionRequestsReceived;
Availability: OpenStep
Key for dictionary returned by [NSConnection -statistics] : number of messages received so far from the remote connection.

### NSConnectionRequestsSent

NSString* const NSConnectionRequestsSent;
Availability: OpenStep
Key for dictionary returned by [NSConnection -statistics] : number of messages sent so far to the remote connection.

### NSDestinationInvalidException

NSString* const NSDestinationInvalidException;
Availability: OpenStep
Description forthcoming.

### NSFailedAuthenticationException

NSString* const NSFailedAuthenticationException;
Availability: OpenStep
Raised by an NSConnection on receiving a message that it or its delegate cannot authenticate.

### NSObjectInaccessibleException

NSString* const NSObjectInaccessibleException;
Availability: OpenStep
Description forthcoming.

### NSObjectNotAvailableException

NSString* const NSObjectNotAvailableException;
Availability: OpenStep
Description forthcoming.

# NSDate constants

### NSSystemClockDidChangeNotification

NSString* const NSSystemClockDidChangeNotification;
Availability: OpenStep
Description forthcoming.

### NSTimeIntervalSince1970

const NSTimeInterval NSTimeIntervalSince1970;
Availability: OpenStep
Time interval between the unix standard reference date of 1 January 1970 and the OpenStep reference date of 1 January 2001
This number comes from:
(((31 years * 365 days) + 8 days for leap years) = total number of days
24 hours * 60 minutes * 60 seconds)
This ignores leap-seconds.

# NSDistributedNotificationCenter constants

### GSNetworkNotificationCenterType

NSString* const GSNetworkNotificationCenterType;
Availability: Not in OpenStep/MacOS-X
Type of [NSDistributedNotificationCenter +notificationCenterForType:] - localhost and LAN broadcast. This type is available only on GNUstep.

### GSPublicNotificationCenterType

NSString* const GSPublicNotificationCenterType;
Availability: Not in OpenStep/MacOS-X
Type of [NSDistributedNotificationCenter +notificationCenterForType:] - all users on the local host. This type is available only on GNUstep.

### NSLocalNotificationCenterType

NSString* const NSLocalNotificationCenterType;
Availability: MacOS-X 10.0.0
Type for [NSDistributedNotificationCenter +notificationCenterForType:] - localhost current user broadcast only. This is the only type on OS X.

# NSError constants

### NSFilePathErrorKey

NSString* const NSFilePathErrorKey;
Availability: MacOS-X 10.4.0
This key can be used to store the file path of a resource involved in the error (eg unreadable file).

### NSLocalizedDescriptionKey

NSString* const NSLocalizedDescriptionKey;
Availability: MacOS-X 10.3.0
Key for user info dictionary component which describes the error in a human readable format.

### NSLocalizedFailureReasonErrorKey

NSString* const NSLocalizedFailureReasonErrorKey;
Availability: MacOS-X 10.4.0
Key to store a string describing what caused the error to occur.

### NSLocalizedRecoveryOptionsErrorKey

NSString* const NSLocalizedRecoveryOptionsErrorKey;
Availability: MacOS-X 10.4.0
Key to store an NSArray of strings suitable for use as the titles of buttons in an alert panel used to attempt error recovery in a GUI application.

### NSLocalizedRecoverySuggestionErrorKey

NSString* const NSLocalizedRecoverySuggestionErrorKey;
Availability: MacOS-X 10.4.0
Key to store a string providing a hint on how to use the buttons in an alert panel.

### NSRecoveryAttempterErrorKey

NSString* const NSRecoveryAttempterErrorKey;
Availability: MacOS-X 10.4.0
Key to store an object which can be used to attempt to recover from the error.

### NSStringEncodingErrorKey

NSString* const NSStringEncodingErrorKey;
Availability: MacOS-X 10.4.0
Key for an NSNumber containing an NSStringEncoding value.

### NSURLErrorFailingURLErrorKey

NSString* const NSURLErrorFailingURLErrorKey;
Availability: MacOS-X 10.6.0
NSURL to indicate the URL which did not load, in the NSURLErrorDomain.

### NSURLErrorFailingURLStringErrorKey

NSString* const NSURLErrorFailingURLStringErrorKey;
Availability: MacOS-X 10.6.0
NSString in the NSURLDomain to indicate the object for the URL that did not load. This supersedes NSErrorFailingURLStringKey

### NSURLErrorKey

NSString* const NSURLErrorKey;
Availability: MacOS-X 10.4.0
This can be used to store the URLK involved in the error.

### NSUnderlyingErrorKey

NSString* const NSUnderlyingErrorKey;
Availability: MacOS-X 10.3.0
Where one error has caused another, the underlying error can be stored in the user info dictionary using this key.

# NSException constants

### NSAssertionHandlerKey

NSString* const NSAssertionHandlerKey;
Availability: OpenStep
Description forthcoming.

### NSCharacterConversionException

NSString* const NSCharacterConversionException;
Availability: OpenStep
An exception when character set conversion fails.

### NSDestinationInvalidException

NSString* const NSDestinationInvalidException;
Availability: OpenStep
Attempt to use an invalidated destination.

### NSGenericException

NSString* const NSGenericException;
Availability: OpenStep
A generic exception for general purpose usage.

### NSInternalInconsistencyException

NSString* const NSInternalInconsistencyException;
Availability: OpenStep
An exception for cases where unexpected state is detected within an object.

### NSInvalidArgumentException

NSString* const NSInvalidArgumentException;
Availability: OpenStep
An exception used when an invalid argument is passed to a method or function.

### NSInvalidReceivePortException

NSString* const NSInvalidReceivePortException;
Availability: OpenStep
Attempt to use a receive port which has been invalidated.

### NSInvalidSendPortException

NSString* const NSInvalidSendPortException;
Availability: OpenStep
Attempt to use a send port which has been invalidated.

### NSMallocException

NSString* const NSMallocException;
Availability: OpenStep
An exception used when the system fails to allocate required memory.

### NSObjectInaccessibleException

NSString* const NSObjectInaccessibleException;
Availability: OpenStep
An exception when a remote object is sent a message from a thread unable to access the object.

### NSObjectNotAvailableException

NSString* const NSObjectNotAvailableException;
Availability: OpenStep
Attempt to send to an object which is no longer available.

### NSOldStyleException

NSString* const NSOldStyleException;
Availability: OpenStep
UNused... for MacOS-X compatibility.

### NSParseErrorException

NSString* const NSParseErrorException;
Availability: MacOS-X 10.0.0
An exception used when some form of parsing fails.

### NSPortReceiveException

NSString* const NSPortReceiveException;
Availability: OpenStep
Some failure to receive on a port.

### NSPortSendException

NSString* const NSPortSendException;
Availability: OpenStep
Some failure to send on a port.

### NSPortTimeoutException

NSString* const NSPortTimeoutException;
Availability: OpenStep
Exception raised by NSPort , NSConnection , and friends if sufficient time elapses while waiting for a response, or if the receiving port is invalidated before a request can be received. See [NSConnection -setReplyTimeout:] .

### NSRangeException

NSString* const NSRangeException;
Availability: OpenStep
An exception used when an illegal range is encountered... usually this is used to provide more information than an invalid argument exception.

# NSExtensionContext constants

### NSExtensionHostDidBecomeActiveNotification

NSString* const NSExtensionHostDidBecomeActiveNotification;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionHostDidEnterBackgroundNotification

NSString* const NSExtensionHostDidEnterBackgroundNotification;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionHostWillEnterForegroundNotification

NSString* const NSExtensionHostWillEnterForegroundNotification;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionHostWillResignActiveNotification

NSString* const NSExtensionHostWillResignActiveNotification;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionItemsAndErrorsKey

NSString* const NSExtensionItemsAndErrorsKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSExtensionItem constants

### NSExtensionItemAttachmentsKey

NSString* const NSExtensionItemAttachmentsKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionItemAttributedContentTextKey

NSString* const NSExtensionItemAttributedContentTextKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionItemAttributedTitleKey

NSString* const NSExtensionItemAttributedTitleKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSFileHandle constants

### GSFileHandleConnectCompletionNotification

NSString* const GSFileHandleConnectCompletionNotification;
Availability: Not in OpenStep/MacOS-X
Notification posted when an asynchronous NSFileHandle connection attempt (to an FTP, HTTP, or other internet server) has succeeded.

### GSFileHandleNotificationError

NSString* const GSFileHandleNotificationError;
Availability: Not in OpenStep/MacOS-X
Message describing error in asynchronous NSFileHandle accept,read,write operation.

### GSFileHandleWriteCompletionNotification

NSString* const GSFileHandleWriteCompletionNotification;
Availability: Not in OpenStep/MacOS-X
Notification posted when an asynchronous NSFileHandle write operation (to an FTP, HTTP, or other internet server) has succeeded.

### GSTLSCAFile

NSString* const GSTLSCAFile;
Availability: Not in OpenStep/MacOS-X
Dictionary key for the path to a PEM encoded certificate authority file.

### GSTLSCertificateFile

NSString* const GSTLSCertificateFile;
Availability: Not in OpenStep/MacOS-X
Dictionary key for the path to a PEM encoded certificate used to identify this end of a connection.

### GSTLSCertificateKeyFile

NSString* const GSTLSCertificateKeyFile;
Availability: Not in OpenStep/MacOS-X
Dictionary key for the path to a PEM encoded private key used to unlock the certificate used by this end of a connection.

### GSTLSCertificateKeyPassword

NSString* const GSTLSCertificateKeyPassword;
Availability: Not in OpenStep/MacOS-X
Dictionary key for the password used to decrypt the key file used to unlock the certificate used by this end of a connection.

### GSTLSDebug

NSString* const GSTLSDebug;
Availability: Not in OpenStep/MacOS-X
Dictionary key for a boolean to enable TLS debug for a session.

### GSTLSIssuers

NSString* const GSTLSIssuers;
Availability: Not in OpenStep/MacOS-X
Dictionary key for an array of issuers to use in certificate verification.

### GSTLSOwners

NSString* const GSTLSOwners;
Availability: Not in OpenStep/MacOS-X
Dictionary key for an array of owners to use in certificate verification.

### GSTLSPriority

NSString* const GSTLSPriority;
Availability: Not in OpenStep/MacOS-X
Dictionary key for a GNUTLS priority setting for a session.

### GSTLSRemoteHosts

NSString* const GSTLSRemoteHosts;
Availability: Not in OpenStep/MacOS-X
Dictionary key for a list of hosts to use in certificate verification.

### GSTLSRevokeFile

NSString* const GSTLSRevokeFile;
Availability: Not in OpenStep/MacOS-X
Dictionary key for the path to a PEM encoded certificate revocation file.

### GSTLSServerName

NSString* const GSTLSServerName;
Availability: Not in OpenStep/MacOS-X
Dictionary key for the value controlling the Server Name Indication (SNI) sent as part of the TLS handshake.

### GSTLSVerify

NSString* const GSTLSVerify;
Availability: Not in OpenStep/MacOS-X
Dictionary key for a boolean to enable certificate verification.

### NSFileHandleConnectionAcceptedNotification

NSString* const NSFileHandleConnectionAcceptedNotification;
Availability: OpenStep
Posted when one of the NSFileHandle methods `acceptConnectionInBackground...` succeeds and has connected to a stream-type socket in another process. The notification's userInfo dictionary will contain the NSFileHandle for the near end of the connection (associated to the key ' `NSFileHandleNotificationFileHandleItem` ').

### NSFileHandleDataAvailableNotification

NSString* const NSFileHandleDataAvailableNotification;
Availability: OpenStep
Posted when one of the NSFileHandle methods `waitForDataInBackground...` has been informed that data is available. The receiving NSFileHandle is passed in the notification.

### NSFileHandleNotificationDataItem

NSString* const NSFileHandleNotificationDataItem;
Availability: OpenStep
Dictionary key for NSFileHandle notifications used to access an NSData object containing received data.

### NSFileHandleNotificationFileHandleItem

NSString* const NSFileHandleNotificationFileHandleItem;
Availability: OpenStep
Dictionary key for NSFileHandle notifications used to mark the NSFileHandle that has established a stream-socket connection.

### NSFileHandleNotificationMonitorModes

NSString* const NSFileHandleNotificationMonitorModes;
Availability: OpenStep
Dictionary key for NSFileHandle notifications postable to certain run loop modes, associated to an NSArray containing the modes allowed.

### NSFileHandleOperationException

NSString* const NSFileHandleOperationException;
Availability: OpenStep
Exception raised when attempts to read from an NSFileHandle channel fail.

### NSFileHandleReadCompletionNotification

NSString* const NSFileHandleReadCompletionNotification;
Availability: OpenStep
Posted when one of the NSFileHandle methods readDataInBackground... has consumed data. The receiving NSFileHandle is passed in the notification's userInfo dictionary associated to the key ' `NSFileHandleNotificationDataItem` '.

### NSFileHandleReadToEndOfFileCompletionNotification

NSString* const NSFileHandleReadToEndOfFileCompletionNotification;
Availability: OpenStep
Posted when one of the NSFileHandle methods `readToEndOfFileInBackground...` has finished. The receiving NSFileHandle is passed in the notification's userInfo dictionary associated to the key ' `NSFileHandleNotificationDataItem` '.

# NSFileManager constants

### NSFileAppendOnly

NSString* const NSFileAppendOnly;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileCreationDate

NSString* const NSFileCreationDate;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileDeviceIdentifier

NSString* const NSFileDeviceIdentifier;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileExtensionHidden

NSString* const NSFileExtensionHidden;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileGroupOwnerAccountID

NSString* const NSFileGroupOwnerAccountID;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileGroupOwnerAccountName

NSString* const NSFileGroupOwnerAccountName;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileHFSCreatorCode

NSString* const NSFileHFSCreatorCode;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileHFSTypeCode

NSString* const NSFileHFSTypeCode;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileImmutable

NSString* const NSFileImmutable;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileModificationDate

NSString* const NSFileModificationDate;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileOwnerAccountID

NSString* const NSFileOwnerAccountID;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileOwnerAccountName

NSString* const NSFileOwnerAccountName;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFilePosixPermissions

NSString* const NSFilePosixPermissions;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileReferenceCount

NSString* const NSFileReferenceCount;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSize

NSString* const NSFileSize;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSystemFileNumber

NSString* const NSFileSystemFileNumber;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSystemFreeNodes

NSString* const NSFileSystemFreeNodes;
Availability: MacOS-X 10.0.0
File system attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSystemFreeSize

NSString* const NSFileSystemFreeSize;
Availability: MacOS-X 10.0.0
File system attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSystemNodes

NSString* const NSFileSystemNodes;
Availability: MacOS-X 10.0.0
File system attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSystemNumber

NSString* const NSFileSystemNumber;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileSystemSize

NSString* const NSFileSystemSize;
Availability: MacOS-X 10.0.0
File system attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileType

NSString* const NSFileType;
Availability: MacOS-X 10.0.0
File attribute key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeBlockSpecial

NSString* const NSFileTypeBlockSpecial;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeCharacterSpecial

NSString* const NSFileTypeCharacterSpecial;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeDirectory

NSString* const NSFileTypeDirectory;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeFifo

NSString* const NSFileTypeFifo;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeRegular

NSString* const NSFileTypeRegular;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeSocket

NSString* const NSFileTypeSocket;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeSymbolicLink

NSString* const NSFileTypeSymbolicLink;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

### NSFileTypeUnknown

NSString* const NSFileTypeUnknown;
Availability: MacOS-X 10.0.0
Possible value for ' `NSFileType` ' key in dictionary returned by [NSFileManager -fileAttributesAtPath:traverseLink:] .

# NSGeometry constants

### NSEdgeInsetsZero

const NSEdgeInsets NSEdgeInsetsZero;
Availability: MacOS-X 10.7.0
Zero edge insets

### NSZeroPoint

const NSPoint NSZeroPoint;
Availability: OpenStep
Point at 0,0

### NSZeroRect

const NSRect NSZeroRect;
Availability: OpenStep
Zero-size rectangle at 0,0

### NSZeroSize

const NSSize NSZeroSize;
Availability: OpenStep
Zero size

# NSHashTable constants

### NSIntHashCallBacks

const NSHashTableCallBacks NSIntHashCallBacks;
Availability: OpenStep
Description forthcoming.

### NSIntegerHashCallBacks

const NSHashTableCallBacks NSIntegerHashCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonOwnedPointerHashCallBacks

const NSHashTableCallBacks NSNonOwnedPointerHashCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonRetainedObjectHashCallBacks

const NSHashTableCallBacks NSNonRetainedObjectHashCallBacks;
Availability: OpenStep
Description forthcoming.

### NSObjectHashCallBacks

const NSHashTableCallBacks NSObjectHashCallBacks;
Availability: OpenStep
Description forthcoming.

### NSOwnedPointerHashCallBacks

const NSHashTableCallBacks NSOwnedPointerHashCallBacks;
Availability: OpenStep
Description forthcoming.

### NSPointerToStructHashCallBacks

const NSHashTableCallBacks NSPointerToStructHashCallBacks;
Availability: OpenStep
Description forthcoming.

# NSHTTPCookie constants

### NSHTTPCookieComment

NSString* const NSHTTPCookieComment;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain text of the comment

### NSHTTPCookieCommentURL

NSString* const NSHTTPCookieCommentURL;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain the comment URL

### NSHTTPCookieDiscard

NSString* const NSHTTPCookieDiscard;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain the sessions discard setting

### NSHTTPCookieDomain

NSString* const NSHTTPCookieDomain;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie domain

### NSHTTPCookieExpires

NSString* const NSHTTPCookieExpires;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie expiry date

### NSHTTPCookieMaximumAge

NSString* const NSHTTPCookieMaximumAge;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain maximum age (expiry)

### NSHTTPCookieName

NSString* const NSHTTPCookieName;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain name of cookie

### NSHTTPCookieOriginURL

NSString* const NSHTTPCookieOriginURL;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie origin URL

### NSHTTPCookiePath

NSString* const NSHTTPCookiePath;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie path

### NSHTTPCookiePort

NSString* const NSHTTPCookiePort;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie ports

### NSHTTPCookieSecure

NSString* const NSHTTPCookieSecure;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie security

### NSHTTPCookieValue

NSString* const NSHTTPCookieValue;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain value of cookie

### NSHTTPCookieVersion

NSString* const NSHTTPCookieVersion;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain cookie version

# NSHTTPCookieStorage constants

### NSHTTPCookieManagerAcceptPolicyChangedNotification

NSString* const NSHTTPCookieManagerAcceptPolicyChangedNotification;
Availability: MacOS-X 10.2.0, Base 1.13.0
Posted to the distributed notification center when the cookie accept policy is changed.

### NSHTTPCookieManagerCookiesChangedNotification

NSString* const NSHTTPCookieManagerCookiesChangedNotification;
Availability: MacOS-X 10.2.0, Base 1.13.0
Posted when the set of cookies changes

# NSInvocationOperation constants

### NSInvocationOperationCancelledException

NSString* const NSInvocationOperationCancelledException;
Availability: MacOS-X 10.5.0
Description forthcoming.

### NSInvocationOperationVoidResultException

NSString* const NSInvocationOperationVoidResultException;
Availability: MacOS-X 10.5.0
Description forthcoming.

# NSItemProvider constants

### NSExtensionJavaScriptFinalizeArgumentKey

NSString* const NSExtensionJavaScriptFinalizeArgumentKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSExtensionJavaScriptPreprocessingResultsKey

NSString* const NSExtensionJavaScriptPreprocessingResultsKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSItemProviderErrorDomain

NSString* const NSItemProviderErrorDomain;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSItemProviderPreferredImageSizeKey

NSString* const NSItemProviderPreferredImageSizeKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSKeyedArchiver constants

### NSInvalidArchiveOperationException

NSString* const NSInvalidArchiveOperationException;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSInvalidUnarchiveOperationException

NSString* const NSInvalidUnarchiveOperationException;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSKeyValueCoding constants

### NSUndefinedKeyException

NSString* const NSUndefinedKeyException;
Availability: MacOS-X 10.0.0
An exception for an unknown key in NSObject(NSKeyValueCoding) .

# NSKeyValueObserving constants

### NSKeyValueChangeIndexesKey

NSString* const NSKeyValueChangeIndexesKey;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

### NSKeyValueChangeKindKey

NSString* const NSKeyValueChangeKindKey;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

### NSKeyValueChangeNewKey

NSString* const NSKeyValueChangeNewKey;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

### NSKeyValueChangeNotificationIsPriorKey

NSString* const NSKeyValueChangeNotificationIsPriorKey;
Availability: MacOS-X 10.5.0, Base 1.2.0
Description forthcoming.

### NSKeyValueChangeOldKey

NSString* const NSKeyValueChangeOldKey;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

# NSLocale constants

### NSBuddhistCalendar

NSString* const NSBuddhistCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSChineseCalendar

NSString* const NSChineseCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSCurrentLocaleDidChangeNotification

NSString* const NSCurrentLocaleDidChangeNotification;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSGregorianCalendar

NSString* const NSGregorianCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSHebrewCalendar

NSString* const NSHebrewCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSISO8601Calendar

NSString* const NSISO8601Calendar;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSIndianCalendar

NSString* const NSIndianCalendar;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSIslamicCalendar

NSString* const NSIslamicCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSIslamicCivilCalendar

NSString* const NSIslamicCivilCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSJapaneseCalendar

NSString* const NSJapaneseCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleAlternateQuotationBeginDelimiterKey

NSString* const NSLocaleAlternateQuotationBeginDelimiterKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSLocaleAlternateQuotationEndDelimiterKey

NSString* const NSLocaleAlternateQuotationEndDelimiterKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSLocaleCalendar

NSString* const NSLocaleCalendar;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleCalendarIdentifier

NSString* const NSLocaleCalendarIdentifier;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleCollationIdentifier

NSString* const NSLocaleCollationIdentifier;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleCollatorIdentifier

NSString* const NSLocaleCollatorIdentifier;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleCountryCode

NSString* const NSLocaleCountryCode;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleCurrencyCode

NSString* const NSLocaleCurrencyCode;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleCurrencySymbol

NSString* const NSLocaleCurrencySymbol;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleDecimalSeparator

NSString* const NSLocaleDecimalSeparator;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleExemplarCharacterSet

NSString* const NSLocaleExemplarCharacterSet;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleGroupingSeparator

NSString* const NSLocaleGroupingSeparator;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleIdentifier

NSString* const NSLocaleIdentifier;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleLanguageCode

NSString* const NSLocaleLanguageCode;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleMeasurementSystem

NSString* const NSLocaleMeasurementSystem;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleQuotationBeginDelimiterKey

NSString* const NSLocaleQuotationBeginDelimiterKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSLocaleQuotationEndDelimiterKey

NSString* const NSLocaleQuotationEndDelimiterKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSLocaleScriptCode

NSString* const NSLocaleScriptCode;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleUsesMetricSystem

NSString* const NSLocaleUsesMetricSystem;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSLocaleVariantCode

NSString* const NSLocaleVariantCode;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSPersianCalendar

NSString* const NSPersianCalendar;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSRepublicOfChinaCalendar

NSString* const NSRepublicOfChinaCalendar;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSMapTable constants

### NSIntMapKeyCallBacks

const NSMapTableKeyCallBacks NSIntMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSIntMapValueCallBacks

const NSMapTableValueCallBacks NSIntMapValueCallBacks;
Availability: OpenStep
Description forthcoming.

### NSIntegerMapKeyCallBacks

const NSMapTableKeyCallBacks NSIntegerMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSIntegerMapValueCallBacks

const NSMapTableValueCallBacks NSIntegerMapValueCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonOwnedPointerMapKeyCallBacks

const NSMapTableKeyCallBacks NSNonOwnedPointerMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonOwnedPointerMapValueCallBacks

const NSMapTableValueCallBacks NSNonOwnedPointerMapValueCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonOwnedPointerOrNullMapKeyCallBacks

const NSMapTableKeyCallBacks NSNonOwnedPointerOrNullMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonRetainedObjectMapKeyCallBacks

const NSMapTableKeyCallBacks NSNonRetainedObjectMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSNonRetainedObjectMapValueCallBacks

const NSMapTableValueCallBacks NSNonRetainedObjectMapValueCallBacks;
Availability: OpenStep
Description forthcoming.

### NSObjectMapKeyCallBacks

const NSMapTableKeyCallBacks NSObjectMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSObjectMapValueCallBacks

const NSMapTableValueCallBacks NSObjectMapValueCallBacks;
Availability: OpenStep
Description forthcoming.

### NSOwnedPointerMapKeyCallBacks

const NSMapTableKeyCallBacks NSOwnedPointerMapKeyCallBacks;
Availability: OpenStep
Description forthcoming.

### NSOwnedPointerMapValueCallBacks

const NSMapTableValueCallBacks NSOwnedPointerMapValueCallBacks;
Availability: OpenStep
Description forthcoming.

# NSMetadataAttributes constants

### NSMetadataItemAcquisitionMakeKey

NSString* const NSMetadataItemAcquisitionMakeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAcquisitionModelKey

NSString* const NSMetadataItemAcquisitionModelKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAlbumKey

NSString* const NSMetadataItemAlbumKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAltitudeKey

NSString* const NSMetadataItemAltitudeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemApertureKey

NSString* const NSMetadataItemApertureKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAppleLoopDescriptorsKey

NSString* const NSMetadataItemAppleLoopDescriptorsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAppleLoopsKeyFilterTypeKey

NSString* const NSMetadataItemAppleLoopsKeyFilterTypeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAppleLoopsLoopModeKey

NSString* const NSMetadataItemAppleLoopsLoopModeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAppleLoopsRootKeyKey

NSString* const NSMetadataItemAppleLoopsRootKeyKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemApplicationCategoriesKey

NSString* const NSMetadataItemApplicationCategoriesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAttributeChangeDateKey

NSString* const NSMetadataItemAttributeChangeDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAudiencesKey

NSString* const NSMetadataItemAudiencesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAudioBitRateKey

NSString* const NSMetadataItemAudioBitRateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAudioChannelCountKey

NSString* const NSMetadataItemAudioChannelCountKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAudioEncodingApplicationKey

NSString* const NSMetadataItemAudioEncodingApplicationKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAudioSampleRateKey

NSString* const NSMetadataItemAudioSampleRateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAudioTrackNumberKey

NSString* const NSMetadataItemAudioTrackNumberKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAuthorAddressesKey

NSString* const NSMetadataItemAuthorAddressesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAuthorEmailAddressesKey

NSString* const NSMetadataItemAuthorEmailAddressesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemAuthorsKey

NSString* const NSMetadataItemAuthorsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemBitsPerSampleKey

NSString* const NSMetadataItemBitsPerSampleKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCFBundleIdentifierKey

NSString* const NSMetadataItemCFBundleIdentifierKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCameraOwnerKey

NSString* const NSMetadataItemCameraOwnerKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCityKey

NSString* const NSMetadataItemCityKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCodecsKey

NSString* const NSMetadataItemCodecsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemColorSpaceKey

NSString* const NSMetadataItemColorSpaceKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCommentKey

NSString* const NSMetadataItemCommentKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemComposerKey

NSString* const NSMetadataItemComposerKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemContactKeywordsKey

NSString* const NSMetadataItemContactKeywordsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemContentCreationDateKey

NSString* const NSMetadataItemContentCreationDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemContentModificationDateKey

NSString* const NSMetadataItemContentModificationDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemContentTypeKey

NSString* const NSMetadataItemContentTypeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemContentTypeTreeKey

NSString* const NSMetadataItemContentTypeTreeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemContributorsKey

NSString* const NSMetadataItemContributorsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCopyrightKey

NSString* const NSMetadataItemCopyrightKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCountryKey

NSString* const NSMetadataItemCountryKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCoverageKey

NSString* const NSMetadataItemCoverageKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemCreatorKey

NSString* const NSMetadataItemCreatorKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDateAddedKey

NSString* const NSMetadataItemDateAddedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDeliveryTypeKey

NSString* const NSMetadataItemDeliveryTypeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDescriptionKey

NSString* const NSMetadataItemDescriptionKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDirectorKey

NSString* const NSMetadataItemDirectorKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDisplayNameKey

NSString* const NSMetadataItemDisplayNameKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDownloadedDateKey

NSString* const NSMetadataItemDownloadedDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDueDateKey

NSString* const NSMetadataItemDueDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemDurationSecondsKey

NSString* const NSMetadataItemDurationSecondsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemEXIFGPSVersionKey

NSString* const NSMetadataItemEXIFGPSVersionKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemEXIFVersionKey

NSString* const NSMetadataItemEXIFVersionKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemEditorsKey

NSString* const NSMetadataItemEditorsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemEmailAddressesKey

NSString* const NSMetadataItemEmailAddressesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemEncodingApplicationsKey

NSString* const NSMetadataItemEncodingApplicationsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemExecutableArchitecturesKey

NSString* const NSMetadataItemExecutableArchitecturesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemExecutablePlatformKey

NSString* const NSMetadataItemExecutablePlatformKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemExposureModeKey

NSString* const NSMetadataItemExposureModeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemExposureProgramKey

NSString* const NSMetadataItemExposureProgramKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemExposureTimeSecondsKey

NSString* const NSMetadataItemExposureTimeSecondsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemExposureTimeStringKey

NSString* const NSMetadataItemExposureTimeStringKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFNumberKey

NSString* const NSMetadataItemFNumberKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFSContentChangeDateKey

NSString* const NSMetadataItemFSContentChangeDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFSCreationDateKey

NSString* const NSMetadataItemFSCreationDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFSNameKey

NSString* const NSMetadataItemFSNameKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFSSizeKey

NSString* const NSMetadataItemFSSizeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFinderCommentKey

NSString* const NSMetadataItemFinderCommentKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFlashOnOffKey

NSString* const NSMetadataItemFlashOnOffKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFocalLength35mmKey

NSString* const NSMetadataItemFocalLength35mmKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFocalLengthKey

NSString* const NSMetadataItemFocalLengthKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemFontsKey

NSString* const NSMetadataItemFontsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSAreaInformationKey

NSString* const NSMetadataItemGPSAreaInformationKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDOPKey

NSString* const NSMetadataItemGPSDOPKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDateStampKey

NSString* const NSMetadataItemGPSDateStampKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDestBearingKey

NSString* const NSMetadataItemGPSDestBearingKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDestDistanceKey

NSString* const NSMetadataItemGPSDestDistanceKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDestLatitudeKey

NSString* const NSMetadataItemGPSDestLatitudeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDestLongitudeKey

NSString* const NSMetadataItemGPSDestLongitudeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSDifferentalKey

NSString* const NSMetadataItemGPSDifferentalKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSMapDatumKey

NSString* const NSMetadataItemGPSMapDatumKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSMeasureModeKey

NSString* const NSMetadataItemGPSMeasureModeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSProcessingMethodKey

NSString* const NSMetadataItemGPSProcessingMethodKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSStatusKey

NSString* const NSMetadataItemGPSStatusKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGPSTrackKey

NSString* const NSMetadataItemGPSTrackKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemGenreKey

NSString* const NSMetadataItemGenreKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemHasAlphaChannelKey

NSString* const NSMetadataItemHasAlphaChannelKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemHeadlineKey

NSString* const NSMetadataItemHeadlineKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemISOSpeedKey

NSString* const NSMetadataItemISOSpeedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemIdentifierKey

NSString* const NSMetadataItemIdentifierKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemImageDirectionKey

NSString* const NSMetadataItemImageDirectionKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemInformationKey

NSString* const NSMetadataItemInformationKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemInstantMessageAddressesKey

NSString* const NSMetadataItemInstantMessageAddressesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemInstructionsKey

NSString* const NSMetadataItemInstructionsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemIsApplicationManagedKey

NSString* const NSMetadataItemIsApplicationManagedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemIsGeneralMIDISequenceKey

NSString* const NSMetadataItemIsGeneralMIDISequenceKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemIsLikelyJunkKey

NSString* const NSMetadataItemIsLikelyJunkKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemIsUbiquitousKey

NSString* const NSMetadataItemIsUbiquitousKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemKeySignatureKey

NSString* const NSMetadataItemKeySignatureKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemKeywordsKey

NSString* const NSMetadataItemKeywordsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemKindKey

NSString* const NSMetadataItemKindKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLanguagesKey

NSString* const NSMetadataItemLanguagesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLastUsedDateKey

NSString* const NSMetadataItemLastUsedDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLatitudeKey

NSString* const NSMetadataItemLatitudeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLayerNamesKey

NSString* const NSMetadataItemLayerNamesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLensModelKey

NSString* const NSMetadataItemLensModelKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLongitudeKey

NSString* const NSMetadataItemLongitudeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemLyricistKey

NSString* const NSMetadataItemLyricistKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemMaxApertureKey

NSString* const NSMetadataItemMaxApertureKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemMediaTypesKey

NSString* const NSMetadataItemMediaTypesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemMeteringModeKey

NSString* const NSMetadataItemMeteringModeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemMusicalGenreKey

NSString* const NSMetadataItemMusicalGenreKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemMusicalInstrumentCategoryKey

NSString* const NSMetadataItemMusicalInstrumentCategoryKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemMusicalInstrumentNameKey

NSString* const NSMetadataItemMusicalInstrumentNameKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemNamedLocationKey

NSString* const NSMetadataItemNamedLocationKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemNumberOfPagesKey

NSString* const NSMetadataItemNumberOfPagesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemOrganizationsKey

NSString* const NSMetadataItemOrganizationsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemOrientationKey

NSString* const NSMetadataItemOrientationKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemOriginalFormatKey

NSString* const NSMetadataItemOriginalFormatKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemOriginalSourceKey

NSString* const NSMetadataItemOriginalSourceKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPageHeightKey

NSString* const NSMetadataItemPageHeightKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPageWidthKey

NSString* const NSMetadataItemPageWidthKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemParticipantsKey

NSString* const NSMetadataItemParticipantsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPathKey

NSString* const NSMetadataItemPathKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPerformersKey

NSString* const NSMetadataItemPerformersKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPhoneNumbersKey

NSString* const NSMetadataItemPhoneNumbersKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPixelCountKey

NSString* const NSMetadataItemPixelCountKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPixelHeightKey

NSString* const NSMetadataItemPixelHeightKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPixelWidthKey

NSString* const NSMetadataItemPixelWidthKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemProducerKey

NSString* const NSMetadataItemProducerKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemProfileNameKey

NSString* const NSMetadataItemProfileNameKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemProjectsKey

NSString* const NSMetadataItemProjectsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemPublishersKey

NSString* const NSMetadataItemPublishersKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRecipientAddressesKey

NSString* const NSMetadataItemRecipientAddressesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRecipientEmailAddressesKey

NSString* const NSMetadataItemRecipientEmailAddressesKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRecipientsKey

NSString* const NSMetadataItemRecipientsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRecordingDateKey

NSString* const NSMetadataItemRecordingDateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRecordingYearKey

NSString* const NSMetadataItemRecordingYearKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRedEyeOnOffKey

NSString* const NSMetadataItemRedEyeOnOffKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemResolutionHeightDPIKey

NSString* const NSMetadataItemResolutionHeightDPIKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemResolutionWidthDPIKey

NSString* const NSMetadataItemResolutionWidthDPIKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemRightsKey

NSString* const NSMetadataItemRightsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemSecurityMethodKey

NSString* const NSMetadataItemSecurityMethodKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemSpeedKey

NSString* const NSMetadataItemSpeedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemStarRatingKey

NSString* const NSMetadataItemStarRatingKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemStateOrProvinceKey

NSString* const NSMetadataItemStateOrProvinceKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemStreamableKey

NSString* const NSMetadataItemStreamableKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemSubjectKey

NSString* const NSMetadataItemSubjectKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemTempoKey

NSString* const NSMetadataItemTempoKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemTextContentKey

NSString* const NSMetadataItemTextContentKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemThemeKey

NSString* const NSMetadataItemThemeKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemTimeSignatureKey

NSString* const NSMetadataItemTimeSignatureKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemTimestampKey

NSString* const NSMetadataItemTimestampKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemTitleKey

NSString* const NSMetadataItemTitleKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemTotalBitRateKey

NSString* const NSMetadataItemTotalBitRateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemURLKey

NSString* const NSMetadataItemURLKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemVersionKey

NSString* const NSMetadataItemVersionKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemVideoBitRateKey

NSString* const NSMetadataItemVideoBitRateKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemWhereFromsKey

NSString* const NSMetadataItemWhereFromsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataItemWhiteBalanceKey

NSString* const NSMetadataItemWhiteBalanceKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemContainerDisplayNameKey

NSString* const NSMetadataUbiquitousItemContainerDisplayNameKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemDownloadRequestedKey

NSString* const NSMetadataUbiquitousItemDownloadRequestedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemDownloadingErrorKey

NSString* const NSMetadataUbiquitousItemDownloadingErrorKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemDownloadingStatusCurrent

NSString* const NSMetadataUbiquitousItemDownloadingStatusCurrent;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemDownloadingStatusDownloaded

NSString* const NSMetadataUbiquitousItemDownloadingStatusDownloaded;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemDownloadingStatusKey

NSString* const NSMetadataUbiquitousItemDownloadingStatusKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemDownloadingStatusNotDownloaded

NSString* const NSMetadataUbiquitousItemDownloadingStatusNotDownloaded;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemHasUnresolvedConflictsKey

NSString* const NSMetadataUbiquitousItemHasUnresolvedConflictsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemIsDownloadedKey

NSString* const NSMetadataUbiquitousItemIsDownloadedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemIsDownloadingKey

NSString* const NSMetadataUbiquitousItemIsDownloadingKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemIsExternalDocumentKey

NSString* const NSMetadataUbiquitousItemIsExternalDocumentKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemIsSharedKey

NSString* const NSMetadataUbiquitousItemIsSharedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemIsUploadedKey

NSString* const NSMetadataUbiquitousItemIsUploadedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemIsUploadingKey

NSString* const NSMetadataUbiquitousItemIsUploadingKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemPercentDownloadedKey

NSString* const NSMetadataUbiquitousItemPercentDownloadedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemPercentUploadedKey

NSString* const NSMetadataUbiquitousItemPercentUploadedKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemURLInLocalContainerKey

NSString* const NSMetadataUbiquitousItemURLInLocalContainerKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousItemUploadingErrorKey

NSString* const NSMetadataUbiquitousItemUploadingErrorKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemCurrentUserPermissionsKey

NSString* const NSMetadataUbiquitousSharedItemCurrentUserPermissionsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemCurrentUserRoleKey

NSString* const NSMetadataUbiquitousSharedItemCurrentUserRoleKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemMostRecentEditorNameComponentsKey

NSString* const NSMetadataUbiquitousSharedItemMostRecentEditorNameComponentsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemOwnerNameComponentsKey

NSString* const NSMetadataUbiquitousSharedItemOwnerNameComponentsKey;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemPermissionsReadOnly

NSString* const NSMetadataUbiquitousSharedItemPermissionsReadOnly;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemPermissionsReadWrite

NSString* const NSMetadataUbiquitousSharedItemPermissionsReadWrite;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemRoleOwner

NSString* const NSMetadataUbiquitousSharedItemRoleOwner;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSMetadataUbiquitousSharedItemRoleParticipant

NSString* const NSMetadataUbiquitousSharedItemRoleParticipant;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

# NSMetadata constants

### NSMetadataQueryDidFinishGatheringNotification

NSString* const NSMetadataQueryDidFinishGatheringNotification;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryDidStartGatheringNotification

NSString* const NSMetadataQueryDidStartGatheringNotification;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryDidUpdateNotification

NSString* const NSMetadataQueryDidUpdateNotification;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryGatheringProgressNotification

NSString* const NSMetadataQueryGatheringProgressNotification;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryLocalComputerScope

NSString* const NSMetadataQueryLocalComputerScope;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryNetworkScope

NSString* const NSMetadataQueryNetworkScope;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryUbiquitousDataScope

NSString* const NSMetadataQueryUbiquitousDataScope;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryUbiquitousDocumentsScope

NSString* const NSMetadataQueryUbiquitousDocumentsScope;
Availability: OpenStep
Description forthcoming.

### NSMetadataQueryUserHomeScope

NSString* const NSMetadataQueryUserHomeScope;
Availability: OpenStep
Description forthcoming.

# NSNetServices constants

### NSNetServicesErrorCode

NSString* const NSNetServicesErrorCode;
Availability: OpenStep
Description forthcoming.

### NSNetServicesErrorDomain

NSString* const NSNetServicesErrorDomain;
Availability: OpenStep
Description forthcoming.

# NSPersonNameComponentsFormatter constants

### NSPersonNameComponentDelimiter

NSString* const NSPersonNameComponentDelimiter;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentFamilyName

NSString* const NSPersonNameComponentFamilyName;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentGivenName

NSString* const NSPersonNameComponentGivenName;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentKey

NSString* const NSPersonNameComponentKey;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentMiddleName

NSString* const NSPersonNameComponentMiddleName;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentNickname

NSString* const NSPersonNameComponentNickname;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentPrefix

NSString* const NSPersonNameComponentPrefix;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentSuffix

NSString* const NSPersonNameComponentSuffix;
Availability: MacOS-X 10.11.0
Description forthcoming.

# NSPort constants

### NSPortDidBecomeInvalidNotification

NSString* const NSPortDidBecomeInvalidNotification;
Availability: OpenStep
Notification posted when an instance of NSPort or a subclass becomes invalid.

# NSRegularExpression constants

### NSMatchingAnchored

const NSMatchingOptions NSMatchingAnchored;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingCompleted

const NSMatchingFlags NSMatchingCompleted;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingHitEnd

const NSMatchingFlags NSMatchingHitEnd;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingInternalError

const NSMatchingFlags NSMatchingInternalError;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingProgress

const NSMatchingFlags NSMatchingProgress;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingReportCompletion

const NSMatchingOptions NSMatchingReportCompletion;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingReportProgress

const NSMatchingOptions NSMatchingReportProgress;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingRequiredEnd

const NSMatchingFlags NSMatchingRequiredEnd;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingWithTransparentBounds

const NSMatchingOptions NSMatchingWithTransparentBounds;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingWithoutAnchoringBounds

const NSMatchingOptions NSMatchingWithoutAnchoringBounds;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionAllowCommentsAndWhitespace

const NSRegularExpressionOptions NSRegularExpressionAllowCommentsAndWhitespace;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionAnchorsMatchLines

const NSRegularExpressionOptions NSRegularExpressionAnchorsMatchLines;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionCaseInsensitive

const NSRegularExpressionOptions NSRegularExpressionCaseInsensitive;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionDotMatchesLineSeparators

const NSRegularExpressionOptions NSRegularExpressionDotMatchesLineSeparators;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionIgnoreMetacharacters

const NSRegularExpressionOptions NSRegularExpressionIgnoreMetacharacters;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionUseUnicodeWordBoundaries

const NSRegularExpressionOptions NSRegularExpressionUseUnicodeWordBoundaries;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionUseUnixLineSeparators

const NSRegularExpressionOptions NSRegularExpressionUseUnixLineSeparators;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSSpellServer constants

### NSGrammarCorrections

NSString* const NSGrammarCorrections;
Availability: MacOS-X 10.5.0
Description forthcoming.

### NSGrammarRange

NSString* const NSGrammarRange;
Availability: MacOS-X 10.5.0
Description forthcoming.

### NSGrammarUserDescription

NSString* const NSGrammarUserDescription;
Availability: MacOS-X 10.5.0
Description forthcoming.

# NSStream constants

### NSStreamDataWrittenToMemoryStreamKey

NSString* const NSStreamDataWrittenToMemoryStreamKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamFileCurrentOffsetKey

NSString* const NSStreamFileCurrentOffsetKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSErrorDomain

NSString* const NSStreamSOCKSErrorDomain;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyConfigurationKey

NSString* const NSStreamSOCKSProxyConfigurationKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyHostKey

NSString* const NSStreamSOCKSProxyHostKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyPasswordKey

NSString* const NSStreamSOCKSProxyPasswordKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyPortKey

NSString* const NSStreamSOCKSProxyPortKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyUserKey

NSString* const NSStreamSOCKSProxyUserKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyVersion4

NSString* const NSStreamSOCKSProxyVersion4;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyVersion5

NSString* const NSStreamSOCKSProxyVersion5;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSOCKSProxyVersionKey

NSString* const NSStreamSOCKSProxyVersionKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSSLErrorDomain

NSString* const NSStreamSocketSSLErrorDomain;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSecurityLevelKey

NSString* const NSStreamSocketSecurityLevelKey;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSecurityLevelNegotiatedSSL

NSString* const NSStreamSocketSecurityLevelNegotiatedSSL;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSecurityLevelNone

NSString* const NSStreamSocketSecurityLevelNone;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSecurityLevelSSLv2

NSString* const NSStreamSocketSecurityLevelSSLv2;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSecurityLevelSSLv3

NSString* const NSStreamSocketSecurityLevelSSLv3;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamSocketSecurityLevelTLSv1

NSString* const NSStreamSocketSecurityLevelTLSv1;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

# NSTask constants

### NSTaskDidTerminateNotification

NSString* const NSTaskDidTerminateNotification;
Availability: OpenStep
Notification posted when an NSTask terminates, either due to the subprocess ending or the [NSTask -terminate] method explicitly being called.

# NSThread constants

### NSThreadDidStartNotification

NSString* const NSThreadDidStartNotification;
Availability: Base
Likely to be changed/moved/removed at 0.0.0
Notification posted whenever a new thread is started up. This is a GNUstep extension.

### NSThreadWillExitNotification

NSString* const NSThreadWillExitNotification;
Availability: OpenStep
Notification posted when an NSThread instance receives an exit message, or an external thread has been deregistered.

### NSWillBecomeMultiThreadedNotification

NSString* const NSWillBecomeMultiThreadedNotification;
Availability: OpenStep
Notification posted the first time a new NSThread is created or a separate thread from another library is registered in an application. (The initial thread that a program starts with does not post this notification.) Before such a notification has been posted you can assume the application is in single-threaded mode and locks are not necessary. Afterwards multiple threads may be running.

# NSTimeZone constants

### NSSystemTimeZoneDidChangeNotification

NSString* const NSSystemTimeZoneDidChangeNotification;
Availability: MacOS-X 10.5.0
Description forthcoming.

# NSUbiquitousKeyValueStore constants

### NSUbiquitousKeyValueStoreChangeReasonKey

NSString* const NSUbiquitousKeyValueStoreChangeReasonKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSUbiquitousKeyValueStoreDidChangeExternallyNotification

NSString* const NSUbiquitousKeyValueStoreDidChangeExternallyNotification;
Availability: MacOS-X 10.7.0
Description forthcoming.

# NSUndoManager constants

### NSUndoManagerCheckpointNotification

NSString* const NSUndoManagerCheckpointNotification;
Availability: MacOS-X 10.0.0
Notification posted whenever NSUndoManager opens or closes an undo group. The undo manager itself is the notification object, with no userInfo dictionary.

### NSUndoManagerDidOpenUndoGroupNotification

NSString* const NSUndoManagerDidOpenUndoGroupNotification;
Availability: MacOS-X 10.0.0
Notification posted after an NSUndoManager opens an undo group.

### NSUndoManagerDidRedoChangeNotification

NSString* const NSUndoManagerDidRedoChangeNotification;
Availability: MacOS-X 10.0.0
Notification posted after an NSUndoManager executes a redo operation.

### NSUndoManagerDidUndoChangeNotification

NSString* const NSUndoManagerDidUndoChangeNotification;
Availability: MacOS-X 10.0.0
Notification posted after an NSUndoManager executes an undo operation.

### NSUndoManagerWillCloseUndoGroupNotification

NSString* const NSUndoManagerWillCloseUndoGroupNotification;
Availability: MacOS-X 10.0.0
Notification posted before an NSUndoManager closes an undo group.

### NSUndoManagerWillRedoChangeNotification

NSString* const NSUndoManagerWillRedoChangeNotification;
Availability: MacOS-X 10.0.0
Notification posted before an NSUndoManager will execute a redo operation.

### NSUndoManagerWillUndoChangeNotification

NSString* const NSUndoManagerWillUndoChangeNotification;
Availability: MacOS-X 10.0.0
Notification posted before an NSUndoManager will execute an undo operation.

# NSURLCredentialStorage constants

### NSURLCredentialStorageChangedNotification

NSString* const NSURLCredentialStorageChangedNotification;
Availability: MacOS-X 10.2.0, Base 1.13.0
Notification sent when the set of stored credentials changes.

# NSURLError constants

### NSErrorFailingURLStringKey

NSString* const NSErrorFailingURLStringKey;
Availability: MacOS-X 10.2.0, Base 1.13.0
Obtain the URL which caused the failure

### NSURLErrorDomain

NSString* const NSURLErrorDomain;
Availability: MacOS-X 10.2.0, Base 1.13.0
The domain for a URL error.

# NSURL constants

### NSThumbnail1024x1024SizeKey

NSString* const NSThumbnail1024x1024SizeKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLAddedToDirectoryDateKey

NSString* const NSURLAddedToDirectoryDateKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLApplicationIsScriptableKey

NSString* const NSURLApplicationIsScriptableKey;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSURLAttributeModificationDateKey

NSString* const NSURLAttributeModificationDateKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLContentAccessDateKey

NSString* const NSURLContentAccessDateKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLContentModificationDateKey

NSString* const NSURLContentModificationDateKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLCreationDateKey

NSString* const NSURLCreationDateKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLCustomIconKey

NSString* const NSURLCustomIconKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLDocumentIdentifierKey

NSString* const NSURLDocumentIdentifierKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLEffectiveIconKey

NSString* const NSURLEffectiveIconKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLFileAllocatedSizeKey

NSString* const NSURLFileAllocatedSizeKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLFileResourceIdentifierKey

NSString* const NSURLFileResourceIdentifierKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeBlockSpecial

NSString* const NSURLFileResourceTypeBlockSpecial;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeCharacterSpecial

NSString* const NSURLFileResourceTypeCharacterSpecial;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeDirectory

NSString* const NSURLFileResourceTypeDirectory;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeKey

NSString* const NSURLFileResourceTypeKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeNamedPipe

NSString* const NSURLFileResourceTypeNamedPipe;
Availability: MacOS-X 10.7.0
Possible values for File Resource Type Key

### NSURLFileResourceTypeRegular

NSString* const NSURLFileResourceTypeRegular;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeSocket

NSString* const NSURLFileResourceTypeSocket;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeSymbolicLink

NSString* const NSURLFileResourceTypeSymbolicLink;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileResourceTypeUnknown

NSString* const NSURLFileResourceTypeUnknown;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileScheme

NSString* const NSURLFileScheme;
Availability: MacOS-X 10.0.0
URL scheme constant for use with [NSURL -initWithScheme:host:path:] .

### NSURLFileSecurityKey

NSString* const NSURLFileSecurityKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLFileSizeKey

NSString* const NSURLFileSizeKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLGenerationIdentifierKey

NSString* const NSURLGenerationIdentifierKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLHasHiddenExtensionKey

NSString* const NSURLHasHiddenExtensionKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsAliasFileKey

NSString* const NSURLIsAliasFileKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsApplicationKey

NSString* const NSURLIsApplicationKey;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSURLIsDirectoryKey

NSString* const NSURLIsDirectoryKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsExcludedFromBackupKey

NSString* const NSURLIsExcludedFromBackupKey;
Availability: MacOS-X 10.8.0
Description forthcoming.

### NSURLIsExecutableKey

NSString* const NSURLIsExecutableKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLIsHiddenKey

NSString* const NSURLIsHiddenKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsMountTriggerKey

NSString* const NSURLIsMountTriggerKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLIsPackageKey

NSString* const NSURLIsPackageKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsReadableKey

NSString* const NSURLIsReadableKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLIsRegularFileKey

NSString* const NSURLIsRegularFileKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsSymbolicLinkKey

NSString* const NSURLIsSymbolicLinkKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsSystemImmutableKey

NSString* const NSURLIsSystemImmutableKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsUbiquitousItemKey

NSString* const NSURLIsUbiquitousItemKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLIsUserImmutableKey

NSString* const NSURLIsUserImmutableKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsVolumeKey

NSString* const NSURLIsVolumeKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLIsWritableKey

NSString* const NSURLIsWritableKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLLabelColorKey

NSString* const NSURLLabelColorKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLLabelNumberKey

NSString* const NSURLLabelNumberKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLLinkCountKey

NSString* const NSURLLinkCountKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLLocalizedLabelKey

NSString* const NSURLLocalizedLabelKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLLocalizedNameKey

NSString* const NSURLLocalizedNameKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLLocalizedTypeDescriptionKey

NSString* const NSURLLocalizedTypeDescriptionKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLNameKey

NSString* const NSURLNameKey;
Availability: MacOS-X 10.6.0
URL Resource Value Constants

### NSURLParentDirectoryURLKey

NSString* const NSURLParentDirectoryURLKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLPathKey

NSString* const NSURLPathKey;
Availability: MacOS-X 10.8.0
Description forthcoming.

### NSURLPreferredIOBlockSizeKey

NSString* const NSURLPreferredIOBlockSizeKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLQuarantinePropertiesKey

NSString* const NSURLQuarantinePropertiesKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLTagNamesKey

NSString* const NSURLTagNamesKey;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLTotalFileAllocatedSizeKey

NSString* const NSURLTotalFileAllocatedSizeKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLTotalFileSizeKey

NSString* const NSURLTotalFileSizeKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLTypeIdentifierKey

NSString* const NSURLTypeIdentifierKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLUbiquitousItemContainerDisplayNameKey

NSString* const NSURLUbiquitousItemContainerDisplayNameKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLUbiquitousItemDownloadRequestedKey

NSString* const NSURLUbiquitousItemDownloadRequestedKey;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSURLUbiquitousItemDownloadingErrorKey

NSString* const NSURLUbiquitousItemDownloadingErrorKey;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLUbiquitousItemDownloadingStatusCurrent

NSString* const NSURLUbiquitousItemDownloadingStatusCurrent;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLUbiquitousItemDownloadingStatusDownloaded

NSString* const NSURLUbiquitousItemDownloadingStatusDownloaded;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLUbiquitousItemDownloadingStatusKey

NSString* const NSURLUbiquitousItemDownloadingStatusKey;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLUbiquitousItemDownloadingStatusNotDownloaded

NSString* const NSURLUbiquitousItemDownloadingStatusNotDownloaded;
Availability: MacOS-X 10.9.0
Possible values for Ubiquitous Item Downloading Key

### NSURLUbiquitousItemHasUnresolvedConflictsKey

NSString* const NSURLUbiquitousItemHasUnresolvedConflictsKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLUbiquitousItemIsDownloadingKey

NSString* const NSURLUbiquitousItemIsDownloadingKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLUbiquitousItemIsUploadedKey

NSString* const NSURLUbiquitousItemIsUploadedKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLUbiquitousItemIsUploadingKey

NSString* const NSURLUbiquitousItemIsUploadingKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLUbiquitousItemUploadingErrorKey

NSString* const NSURLUbiquitousItemUploadingErrorKey;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLVolumeAvailableCapacityKey

NSString* const NSURLVolumeAvailableCapacityKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeCreationDateKey

NSString* const NSURLVolumeCreationDateKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIdentifierKey

NSString* const NSURLVolumeIdentifierKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsAutomountedKey

NSString* const NSURLVolumeIsAutomountedKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsBrowsableKey

NSString* const NSURLVolumeIsBrowsableKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsEjectableKey

NSString* const NSURLVolumeIsEjectableKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsInternalKey

NSString* const NSURLVolumeIsInternalKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsJournalingKey

NSString* const NSURLVolumeIsJournalingKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeIsLocalKey

NSString* const NSURLVolumeIsLocalKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsReadOnlyKey

NSString* const NSURLVolumeIsReadOnlyKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeIsRemovableKey

NSString* const NSURLVolumeIsRemovableKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeLocalizedFormatDescriptionKey

NSString* const NSURLVolumeLocalizedFormatDescriptionKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeLocalizedNameKey

NSString* const NSURLVolumeLocalizedNameKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeMaximumFileSizeKey

NSString* const NSURLVolumeMaximumFileSizeKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeNameKey

NSString* const NSURLVolumeNameKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeResourceCountKey

NSString* const NSURLVolumeResourceCountKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsAdvisoryFileLockingKey

NSString* const NSURLVolumeSupportsAdvisoryFileLockingKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeSupportsCasePreservedNamesKey

NSString* const NSURLVolumeSupportsCasePreservedNamesKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsCaseSensitiveNamesKey

NSString* const NSURLVolumeSupportsCaseSensitiveNamesKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsExtendedSecurityKey

NSString* const NSURLVolumeSupportsExtendedSecurityKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeSupportsHardLinksKey

NSString* const NSURLVolumeSupportsHardLinksKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsJournalingKey

NSString* const NSURLVolumeSupportsJournalingKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsPersistentIDsKey

NSString* const NSURLVolumeSupportsPersistentIDsKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsRenamingKey

NSString* const NSURLVolumeSupportsRenamingKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeSupportsRootDirectoryDatesKey

NSString* const NSURLVolumeSupportsRootDirectoryDatesKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeSupportsSparseFilesKey

NSString* const NSURLVolumeSupportsSparseFilesKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsSymbolicLinksKey

NSString* const NSURLVolumeSupportsSymbolicLinksKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeSupportsVolumeSizesKey

NSString* const NSURLVolumeSupportsVolumeSizesKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeSupportsZeroRunsKey

NSString* const NSURLVolumeSupportsZeroRunsKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeTotalCapacityKey

NSString* const NSURLVolumeTotalCapacityKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeURLForRemountingKey

NSString* const NSURLVolumeURLForRemountingKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSURLVolumeURLKey

NSString* const NSURLVolumeURLKey;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSURLVolumeUUIDStringKey

NSString* const NSURLVolumeUUIDStringKey;
Availability: MacOS-X 10.7.0
Description forthcoming.

# NSURLHandle constants

### GSHTTPPropertyCertificateFileKey

NSString* const GSHTTPPropertyCertificateFileKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to specify the location of an SSL certificate file.

### GSHTTPPropertyKeyFileKey

NSString* const GSHTTPPropertyKeyFileKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to specify the location of an SSL key file.

### GSHTTPPropertyLocalHostKey

NSString* const GSHTTPPropertyLocalHostKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain local host.

### GSHTTPPropertyMethodKey

NSString* const GSHTTPPropertyMethodKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain method (GET, POST, etc.).

### GSHTTPPropertyPasswordKey

NSString* const GSHTTPPropertyPasswordKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to specify the password for an SSL key file.

### GSHTTPPropertyProxyHostKey

NSString* const GSHTTPPropertyProxyHostKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain proxy host.

### GSHTTPPropertyProxyPortKey

NSString* const GSHTTPPropertyProxyPortKey;
Availability: Not in OpenStep/MacOS-X
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain proxy port.

### NSHTTPPropertyErrorPageDataKey

NSString* const NSHTTPPropertyErrorPageDataKey;
Availability: MacOS-X 10.0.0
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain error page data.

### NSHTTPPropertyRedirectionHeadersKey

NSString* const NSHTTPPropertyRedirectionHeadersKey;
Availability: MacOS-X 10.0.0
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain redirection headers.

### NSHTTPPropertyServerHTTPVersionKey

NSString* const NSHTTPPropertyServerHTTPVersionKey;
Availability: MacOS-X 10.0.0
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain HTTP version supported by server.

### NSHTTPPropertyStatusCodeKey

NSString* const NSHTTPPropertyStatusCodeKey;
Availability: MacOS-X 10.0.0
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain status code.

### NSHTTPPropertyStatusReasonKey

NSString* const NSHTTPPropertyStatusReasonKey;
Availability: MacOS-X 10.0.0
Key for passing to NSURLHandle 's `propertyForKey..` methods to obtain status reason.

# NSURLProtectionSpace constants

### NSURLAuthenticationMethodClientCertificate

NSString* const NSURLAuthenticationMethodClientCertificate;
Availability: MacOS-X 10.6.0, Base 1.13.0
Description forthcoming.

### NSURLAuthenticationMethodDefault

NSString* const NSURLAuthenticationMethodDefault;
Availability: MacOS-X 10.2.0, Base 1.13.0
Default authentication (Basic)

### NSURLAuthenticationMethodHTMLForm

NSString* const NSURLAuthenticationMethodHTMLForm;
Availability: MacOS-X 10.2.0, Base 1.13.0
HTML form authentication

### NSURLAuthenticationMethodHTTPBasic

NSString* const NSURLAuthenticationMethodHTTPBasic;
Availability: MacOS-X 10.2.0, Base 1.13.0
HTTP Basic authentication

### NSURLAuthenticationMethodHTTPDigest

NSString* const NSURLAuthenticationMethodHTTPDigest;
Availability: MacOS-X 10.2.0, Base 1.13.0
HTTP Digest authentication

### NSURLAuthenticationMethodNTLM

NSString* const NSURLAuthenticationMethodNTLM;
Availability: MacOS-X 10.5.0, Base 1.13.0
Description forthcoming.

### NSURLAuthenticationMethodNegotiate

NSString* const NSURLAuthenticationMethodNegotiate;
Availability: MacOS-X 10.5.0, Base 1.13.0
Description forthcoming.

### NSURLAuthenticationMethodServerTrust

NSString* const NSURLAuthenticationMethodServerTrust;
Availability: MacOS-X 10.6.0, Base 1.13.0
Description forthcoming.

### NSURLProtectionSpaceFTPProxy

NSString* const NSURLProtectionSpaceFTPProxy;
Availability: MacOS-X 10.2.0, Base 1.13.0
An FTP proxy

### NSURLProtectionSpaceHTTPProxy

NSString* const NSURLProtectionSpaceHTTPProxy;
Availability: MacOS-X 10.2.0, Base 1.13.0
An HTTP proxy

### NSURLProtectionSpaceHTTPSProxy

NSString* const NSURLProtectionSpaceHTTPSProxy;
Availability: MacOS-X 10.2.0, Base 1.13.0
An HTTPS proxy

### NSURLProtectionSpaceSOCKSProxy

NSString* const NSURLProtectionSpaceSOCKSProxy;
Availability: MacOS-X 10.2.0, Base 1.13.0
A SOCKS proxy

# NSURLSession constants

### NSURLSessionTaskPriorityDefault

const float NSURLSessionTaskPriorityDefault;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLSessionTaskPriorityHigh

const float NSURLSessionTaskPriorityHigh;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLSessionTaskPriorityLow

const float NSURLSessionTaskPriorityLow;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLSessionTransferSizeUnknown

const int64_t NSURLSessionTransferSizeUnknown;
Availability: MacOS-X 10.9.0
Description forthcoming.

# NSUserDefaults constants

### GSCACertificateFilePath

NSString* const GSCACertificateFilePath;
Availability: OpenStep
Description forthcoming.

### GSConfigDomain

NSString* const GSConfigDomain;
Availability: OpenStep
User defaults domain for GNUstep config file and for any defaults stored in the GlobalDefaults.plist file alongside the config file.

### GSLocale

NSString* const GSLocale;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: name of locale.

### NSAMPMDesignation

NSString* const NSAMPMDesignation;
Availability: OpenStep
Key for locale dictionary: array of strings for AM and PM.

### NSArgumentDomain

NSString* const NSArgumentDomain;
Availability: OpenStep
User defaults domain for process arguments. Command-line arguments (key-value pairs, as in "-NSFoo bar") are placed in this domain.
Where there is a sequence of arguments beginning with '-', only the last one is used (so "-a" "-b" "-c" "d" will produce a single user default 'c' with value 'd').
NB. On OSX the argument "-" means a key consisting of an empty string (so you can't use a '-' as a default value), while in GNUstep a "-" is a special case which does not mean a default key (so '-' may be used as a value).

### NSCurrencyString

NSString* const NSCurrencyString;
Availability: OpenStep
Key for locale dictionary: text formatter string for monetary amounts.

### NSCurrencySymbol

NSString* const NSCurrencySymbol;
Availability: OpenStep
Key for locale dictionary: currency symbol.

### NSDateFormatString

NSString* const NSDateFormatString;
Availability: OpenStep
Key for locale dictionary: format string for feeding to NSDateFormatter .

### NSDateTimeOrdering

NSString* const NSDateTimeOrdering;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: string with 'Y', 'M', 'D', and 'H' designating the default method of writing dates, as in "MDYH" for the U.S..

### NSDecimalDigits

NSString* const NSDecimalDigits;
Availability: OpenStep
Key for locale dictionary: array of strings for 0-9.

### NSDecimalSeparator

NSString* const NSDecimalSeparator;
Availability: OpenStep
Key for locale dictionary: decimal separator.

### NSEarlierTimeDesignations

NSString* const NSEarlierTimeDesignations;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: adjectives that modify values in NSYearMonthWeekDesignations, as in "last", "previous", etc..

### NSFormalName

NSString* const NSFormalName;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: formal name of language.

### NSGlobalDomain

NSString* const NSGlobalDomain;
Availability: OpenStep
User defaults domain for system defaults.

### NSHourNameDesignations

NSString* const NSHourNameDesignations;
Availability: Not in OpenStep/MacOS-X
Array of arrays of NSStrings, first member of each specifying a time, followed by one or more colloquial names for the time, as in "(0, midnight), (12, noon, lunch)".

### NSInternationalCurrencyString

NSString* const NSInternationalCurrencyString;
Availability: OpenStep
Key for locale dictionary: three-letter ISO 4217 currency abbreviation.

### NSLanguageCode

NSString* const NSLanguageCode;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: two-letter ISO code.

### NSLanguageName

NSString* const NSLanguageName;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: name of language.

### NSLaterTimeDesignations

NSString* const NSLaterTimeDesignations;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: adjectives that modify values in NSYearMonthWeekDesignations, as in "next", "subsequent", etc..

### NSMonthNameArray

NSString* const NSMonthNameArray;
Availability: OpenStep
Key for locale dictionary: names of months of year.

### NSNextDayDesignations

NSString* const NSNextDayDesignations;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: one or more strings designating the next day, such as "tomorrow".

### NSNextNextDayDesignations

NSString* const NSNextNextDayDesignations;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: one or more strings designating the next day, such as "day after tomorrow".

### NSPriorDayDesignations

NSString* const NSPriorDayDesignations;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: one or more strings designating the previous day, such as "yesterday".

### NSRegistrationDomain

NSString* const NSRegistrationDomain;
Availability: OpenStep
User defaults domain for application-registered "default defaults".

### NSShortDateFormatString

NSString* const NSShortDateFormatString;
Availability: OpenStep
Key for locale dictionary: format string for feeding to NSDateFormatter .

### NSShortMonthNameArray

NSString* const NSShortMonthNameArray;
Availability: OpenStep
Key for locale dictionary: abbreviations of months of year.

### NSShortTimeDateFormatString

NSString* const NSShortTimeDateFormatString;
Availability: OpenStep
Key for locale dictionary: format string for feeding to NSDateFormatter .

### NSShortWeekDayNameArray

NSString* const NSShortWeekDayNameArray;
Availability: OpenStep
Key for locale dictionary: abbreviations of days of week.

### NSThisDayDesignations

NSString* const NSThisDayDesignations;
Availability: Not in OpenStep/MacOS-X
Key for locale dictionary: one or more strings designating the current day, such as "today".

### NSThousandsSeparator

NSString* const NSThousandsSeparator;
Availability: OpenStep
Key for locale dictionary: thousands separator.

### NSTimeDateFormatString

NSString* const NSTimeDateFormatString;
Availability: OpenStep
Key for locale dictionary: format string for feeding to NSDateFormatter .

### NSTimeFormatString

NSString* const NSTimeFormatString;
Availability: OpenStep
Key for locale dictionary: format string for feeding to NSDateFormatter .

### NSUserDefaultsDidChangeNotification

NSString* const NSUserDefaultsDidChangeNotification;
Availability: OpenStep
Notification posted when a defaults synchronize has been performed (see [NSUserDefaults -synchronize] ) and changes have been loaded in from disk.

### NSWeekDayNameArray

NSString* const NSWeekDayNameArray;
Availability: OpenStep
Key for locale dictionary: names of days of week.

### NSYearMonthWeekDesignations

NSString* const NSYearMonthWeekDesignations;
Availability: Not in OpenStep/MacOS-X
Strings for "year", "month", "week".

# NSUserNotification constants

### NSUserNotificationDefaultSoundName

NSString* const NSUserNotificationDefaultSoundName;
Availability: MacOS-X 10.8.0
Description forthcoming.

# NSValueTransformer constants

### NSIsNilTransformerName

NSString* const NSIsNilTransformerName;
Availability: MacOS-X 10.3.0, Base 1.2.0
This transformer converts a `nil` value to a `YES`.
Not reversible.

### NSIsNotNilTransformerName

NSString* const NSIsNotNilTransformerName;
Availability: MacOS-X 10.3.0, Base 1.2.0
This transformer converts a non-nil value to a `YES`.
Not reversible.

### NSNegateBooleanTransformerName

NSString* const NSNegateBooleanTransformerName;
Availability: MacOS-X 10.3.0, Base 1.2.0
This transformer converts a `YES` to a `NO` and a `NO` to a `YES`.

### NSUnarchiveFromDataTransformerName

NSString* const NSUnarchiveFromDataTransformerName;
Availability: MacOS-X 10.3.0, Base 1.2.0
This transformer converts an NSData instance to the object archived in it, or archives an object inot an NSData .

# NSXMLParser constants

### NSXMLParserErrorDomain

NSString* const NSXMLParserErrorDomain;
Availability: MacOS-X 10.3.0
Domain for errors

# NSArray types

### NSBinarySearchingOptions

typedef NSUInteger NSBinarySearchingOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSAttributedString types

### NSAttributedStringKey

typedef NSString* NSAttributedStringKey;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSAutoreleasePool types

### struct autorelease_array_list

typedef struct autorelease_array_list struct autorelease_array_list;
Availability: OpenStep
Each pool holds its objects-to-be-released in a linked-list of these structures.

    {
      struct autorelease_array_list *next;
      unsigned size;
      unsigned count;
      id objects[0];
    }

### struct autorelease_thread_vars

typedef struct autorelease_thread_vars struct autorelease_thread_vars;
Availability: OpenStep
Each thread has its own copy of these variables.

    {
      NSAutoreleasePool *current_pool; // current pool for thread
      unsigned total_objects_count;    // total #/autoreleased objects over thread's lifetime
      id *pool_cache;                  // cache of previously-allocated pools,
      int pool_cache_size;             //  used internally for recycling
      int pool_cache_count;
    }

# NSBackgroundActivityScheduler types

### NSBackgroundActivityResult

typedef NSInteger NSBackgroundActivityResult;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSQualityOfService

typedef NSInteger NSQualityOfService;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSByteCountFormatter types

### NSByteCountFormatterCountStyle

typedef NSInteger NSByteCountFormatterCountStyle;
Availability: MacOS-X 10.8.0
Description forthcoming.

### NSByteCountFormatterUnits

typedef NSInteger NSByteCountFormatterUnits;
Availability: MacOS-X 10.8.0
Description forthcoming.

# NSByteOrder types

### NSByteOrder

typedef enum ... NSByteOrder;
Availability: OpenStep
Description forthcoming.

### NSSwappedDouble

typedef uint64_t NSSwappedDouble;
Availability: OpenStep
Description forthcoming.

### NSSwappedFloat

typedef uint32_t NSSwappedFloat;
Availability: OpenStep
Description forthcoming.

# NSCalendar types

### NSCalendarOptions

typedef NSUInteger NSCalendarOptions;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSCalendarUnit

typedef NSUInteger NSCalendarUnit;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSComparisonPredicate types

### NSComparisonPredicateModifier

typedef enum _NSComparisonPredicateModifier NSComparisonPredicateModifier;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSComparisonPredicateOptions

typedef enum _NSComparisonPredicateOptions NSComparisonPredicateOptions;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSPredicateOperatorType

typedef enum _NSPredicateOperatorType NSPredicateOperatorType;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSCompoundPredicate types

### NSCompoundPredicateType

typedef NSUInteger NSCompoundPredicateType;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSData types

### NSDataBase64DecodingOptions

typedef NSUInteger NSDataBase64DecodingOptions;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSDataBase64EncodingOptions

typedef NSUInteger NSDataBase64EncodingOptions;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSDataSearchOptions

typedef NSUInteger NSDataSearchOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSDateComponentsFormatter types

### NSDateComponentsFormatterUnitsStyle

typedef NSInteger NSDateComponentsFormatterUnitsStyle;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

### NSDateComponentsFormatterZeroFormattingBehavior

typedef NSUInteger NSDateComponentsFormatterZeroFormattingBehavior;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

# NSDateFormatter types

### NSDateFormatterBehavior

typedef NSUInteger NSDateFormatterBehavior;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSDateFormatterStyle

typedef NSUInteger NSDateFormatterStyle;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSDate types

### NSTimeInterval

typedef double NSTimeInterval;
Availability: OpenStep
Time interval difference between two dates, in seconds.

# NSDateIntervalFormatter types

### NSDateIntervalFormatterStyle

typedef NSUInteger NSDateIntervalFormatterStyle;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSDebug types

### GSDebugAllocationTraceFunction

typedef NSObject*(* GSDebugAllocationTraceFunction;
Availability: OpenStep
Description forthcoming.

# NSDecimal types

### NSCalculationError

typedef NSUInteger NSCalculationError;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRoundingMode

typedef NSUInteger NSRoundingMode;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSDistributedNotificationCenter types

### NSNotificationSuspensionBehavior

typedef NSUInteger NSNotificationSuspensionBehavior;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSEnergyFormatter types

### NSEnergyFormatterUnit

typedef NSInteger NSEnergyFormatterUnit;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSError types

### NSErrorDomain

typedef NSString* NSErrorDomain;
Availability: MacOS-X 10.3.0
Description forthcoming.

# NSException types

### struct _NSHandler

typedef struct _NSHandler struct _NSHandler;
Availability: OpenStep
The actual structure for an NSHandler. You shouldn't need to worry about it.

# NSExpression types

### NSExpressionType

typedef NSUInteger NSExpressionType;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSFileCoordinator types

### NSFileCoordinatorReadingOptions

typedef NSUInteger NSFileCoordinatorReadingOptions;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSFileCoordinatorWritingOptions

typedef NSUInteger NSFileCoordinatorWritingOptions;
Availability: MacOS-X 10.7.0
Description forthcoming.

# NSFileManager types

### NSDirectoryEnumerationOptions

typedef NSUInteger NSDirectoryEnumerationOptions;
Availability: MacOS-X 10.0.0
Description forthcoming.

### OSType

typedef uint32_t OSType;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSFileVersion types

### NSFileVersionAddingOptions

typedef NSUInteger NSFileVersionAddingOptions;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSFileVersionReplacingOptions

typedef NSUInteger NSFileVersionReplacingOptions;
Availability: MacOS-X 10.7.0
Description forthcoming.

# NSFileWrapper types

### GSFileWrapperType

typedef enum ... GSFileWrapperType;
Availability: OpenStep
Description forthcoming.

### NSFileWrapperReadingOptions

typedef NSUInteger NSFileWrapperReadingOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSFileWrapperWritingOptions

typedef NSUInteger NSFileWrapperWritingOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSFormatter types

### NSFormattingContext

typedef NSInteger NSFormattingContext;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSFormattingUnitStyle

typedef NSInteger NSFormattingUnitStyle;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSGeometry types

### NSAlignmentOptions

typedef NS_ENUM(unsigned long long) NSAlignmentOptions;
Availability: MacOS-X 10.7.0
Sides of a rectangle.

    {
      NSMinXEdge,
      NSMinYEdge,
      NSMaxXEdge,
      NSMaxYEdge
    }

NSRectEdge

A value representing the alignment process

    {
      NSAlignMinXInward,
      NSAlignMinYInward,
      NSAlignMaxXInward,
      NSAlignMaxYInward,
      NSAlignWidthInward,
      NSAlignHeightInward,
      NSAlignMinXOutward,
      NSAlignMinYOutward,
      NSAlignMaxXOutward,
      NSAlignMaxYOutward,
      NSAlignWidthOutward,
      NSAlignHeightOutward,
      NSAlignMinXNearest,
      NSAlignMinYNearest,
      NSAlignMaxXNearest,
      NSAlignMaxYNearest,
      NSAlignWidthNearest,
      NSAlignHeightNearest,
      NSAlignRectFlipped,
      NSAlignAllEdgesInward,
      NSAlignAllEdgesOutward,
      NSAlignAllEdgesNearest
    }

NSAlignmentOptions

NSAlignMinXInward
NSAlignMinYInward
NSAlignMaxXInward
NSAlignMaxYInward
NSAlignWidthInward
NSAlignHeightInward
NSAlignMinXOutward
NSAlignMinYOutward
NSAlignMaxXOutward
NSAlignMaxYOutward
NSAlignWidthOutward
NSAlignHeightOutward
NSAlignMinXNearest
NSAlignMinYNearest
NSAlignMaxXNearest
NSAlignMaxYNearest
NSAlignWidthNearest
NSAlignHeightNearest
NSAlignRectFlipped
NSAlignAllEdgesInward
NSAlignAllEdgesOutward
NSAlignAllEdgesNearest

### NSPoint

typedef struct CGPoint NSPoint;
Availability: OpenStep

    {
      CGFloat x;
      CGFloat y;
    }

Represents a 2-d cartesian position.

### NSPointArray

typedef NSPoint* NSPointArray;
Availability: MacOS-X 10.0.0
Array of NSPoint structs.

### NSPointPointer

typedef NSPoint* NSPointPointer;
Availability: MacOS-X 10.0.0
Pointer to NSPoint struct.

### NSRect

typedef struct CGRect NSRect;
Availability: OpenStep

    {
      NSPoint origin;
      NSSize size;
    }

Rectangle.

### NSRectArray

typedef NSRect* NSRectArray;
Availability: MacOS-X 10.0.0
Array of NSRect structs.

### NSRectEdge

typedef NS_ENUM(NSUInteger) NSRectEdge;
Availability: OpenStep
Description forthcoming.

### NSRectPointer

typedef NSRect* NSRectPointer;
Availability: MacOS-X 10.0.0
Pointer to NSRect struct.

### NSSize

typedef struct CGSize NSSize;
Availability: OpenStep

    {
      CGFloat width;
      CGFloat height;
    }

Floating point rectangle size.

### NSSizeArray

typedef NSSize* NSSizeArray;
Availability: MacOS-X 10.0.0
Array of NSSize structs.

### NSSizePointer

typedef NSSize* NSSizePointer;
Availability: MacOS-X 10.0.0
Pointer to NSSize struct.

### struct NSEdgeInsets

typedef struct NSEdgeInsets struct NSEdgeInsets;
Availability: MacOS-X 10.7.0

    {
      CGFloat top;
      CGFloat left;
      CGFloat bottom;
      CGFloat right;
    }

A description of the distance between the edges of two rectangles.

# NSHashTable types

### NSHashTableOptions

typedef NSUInteger NSHashTableOptions;
Availability: OpenStep
Description forthcoming.

### struct _NSHashTableCallBacks

typedef struct _NSHashTableCallBacks struct _NSHashTableCallBacks;
Availability: OpenStep
Callback functions for an NSHashTable. See NSCreateHashTable() .
`NSUInteger (*hash)(NSHashTable *, const void *)` ... Hashing function. NOTE: Elements with equal values must have equal hash function values. The default if NULL uses the pointer addresses directly.
`BOOL (*isEqual)(NSHashTable *, const void *, const void *)` ... Comparison function. The default if NULL uses ' `==` '.
`void (*retain)(NSHashTable *, const void *)` ... Retaining function called when adding elements to the table. The default if NULL is a no-op (no reference counting).
`void (*release)(NSHashTable *, void *)` ... Releasing function called when a data element is removed from the table. The default if NULL is a no-op (no reference counting).
`NSString *(*describe)(NSHashTable *, const void *)` ... Description function. The default if NULL prints boilerplate.

# NSHTTPCookieStorage types

### NSHTTPCookieAcceptPolicy

typedef NSUInteger NSHTTPCookieAcceptPolicy;
Availability: MacOS-X 10.2.0, Base 1.13.0
NSHTTPCookieAcceptPolicyAlways Accept all cookies NSHTTPCookieAcceptPolicyNever Reject all cookies NSHTTPCookieAcceptPolicyOnlyFromMainDocumentDomain Accept cookies only from the main document domain

# NSInvocation types

### _NSObjCValueType

typedef NS_ENUM(char) _NSObjCValueType;
Availability: OpenStep
Creates and returns an autoreleased invocation containing a message to an instance of the class. The 'message' consists of selector and arguments like a standard ObjectiveC method call.
Before using the returned invocation, you need to set its target.
Creates and returns an autoreleased invocation containing a message to the target object. The 'message' consists of selector and arguments like a standard ObjectiveC method call.

NSObjCArrayType
NSObjCBitfield
NSObjCBoolType
NSObjCCharType
NSObjCDoubleType
NSObjCFloatType
NSObjCLonglongType
NSObjCLongType
NSObjCNoType
NSObjCObjectType
NSObjCPointerType
NSObjCSelectorType
NSObjCShortType
NSObjCStringType
NSObjCStructType
NSObjCUnionType
NSObjCVoidType

# NSISO8601DateFormatter types

### NSISO8601DateFormatOptions

typedef NSUInteger NSISO8601DateFormatOptions;
Availability: Not in OpenStep/MacOS-X
Description forthcoming.

# NSItemProvider types

### NSItemProviderErrorCode

typedef NSInteger NSItemProviderErrorCode;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSItemProviderFileOptions

typedef NSInteger NSItemProviderFileOptions;
Availability: MacOS-X 10.10.0
Description forthcoming.

### NSItemProviderRepresentationVisibility

typedef NSInteger NSItemProviderRepresentationVisibility;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSJSONSerialization types

### NSJSONReadingOptions

typedef NSUInteger NSJSONReadingOptions;
Availability: OpenStep
A bitmask containing flags from the NSJSONReading* set, specifying options to use when reading JSON.

### NSJSONWritingOptions

typedef NSUInteger NSJSONWritingOptions;
Availability: OpenStep
A bitmask containing flags from the NSJSONWriting* set, specifying options to use when writing JSON.

# NSKeyValueObserving types

### NSKeyValueChange

typedef NSUInteger NSKeyValueChange;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

### NSKeyValueChangeKey

typedef NSString* NSKeyValueChangeKey;
Availability: MacOS-X 10.12.0, Base 1.2.0
Description forthcoming.

### NSKeyValueObservingOptions

typedef NSUInteger NSKeyValueObservingOptions;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

### NSKeyValueSetMutationKind

typedef NSUInteger NSKeyValueSetMutationKind;
Availability: MacOS-X 10.3.0, Base 1.2.0
Description forthcoming.

# NSLengthFormatter types

### NSLengthFormatterUnit

typedef NSInteger NSLengthFormatterUnit;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSLinguisticTagger types

### NSLinguisticTag

typedef NSString* NSLinguisticTag;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagScheme

typedef NSString* NSLinguisticTagScheme;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTaggerOptions

typedef NSUInteger NSLinguisticTaggerOptions;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTaggerUnit

typedef NSUInteger NSLinguisticTaggerUnit;
Availability: MacOS-X 10.7.0
Description forthcoming.

# NSLocale types

### NSLocaleLanguageDirection

typedef NSUInteger NSLocaleLanguageDirection;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSMapTable types

### NSMapTableOptions

typedef NSUInteger NSMapTableOptions;
Availability: OpenStep
Description forthcoming.

### NSMapTableValueCallBacks

typedef struct _NSMapTableValueCallBacks NSMapTableValueCallBacks;
Availability: OpenStep
Callback functions for a value.

### struct _NSMapTableKeyCallBacks

typedef struct _NSMapTableKeyCallBacks struct _NSMapTableKeyCallBacks;
Availability: OpenStep
Callback functions for a key.
Comparison function. Must not modify either key.
Retaining function called when adding elements to table.
Notionally this must not modify the key (the key may not actually have a retain count, or the retain count may be stored externally to the key, but in practice this often actually changes a counter within the key).
Releasing function called when a data element is removed from the table. This may decrease a retain count or may actually destroy the key.
Description function. Generates a string describing the key and does not modify the key itself.
Quantity that is not a key to the map table.

# NSMassFormatter types

### NSMassFormatterUnit

typedef NSInteger NSMassFormatterUnit;
Availability: MacOS-X 10.10.0
Description forthcoming.

# NSMeasurementFormatter types

### NSMeasurementFormatterUnitOptions

typedef NSUInteger NSMeasurementFormatterUnitOptions;
Availability: MacOS-X 10.12.0
Description forthcoming.

# NSNetServices types

### NSNetServiceOptions

typedef NSUInteger NSNetServiceOptions;
Availability: OpenStep
Description forthcoming.

### NSNetServicesError

typedef NSUInteger NSNetServicesError;
Availability: OpenStep

- NSNetServicesUnknownError
  An unknown error occurred.
- NSNetServicesCollisionError
  The given registration has had a name collision. Registration should be cancelled and tried again with a different name.
- NSNetServicesNotFoundError
  The service could not be found.
- NSNetServicesActivityInProgress
  A request is already in progress.
- NSNetServicesBadArgumentError
  An invalid argument was used to create the object.
- NSNetServicesCancelledError
  The request has been cancelled.
- NSNetServicesInvalidError
  The service was improperly configured.
- NSNetServicesTimeoutError
  The request has timed out before a successful resolution.

# NSNotification types

### NSNotificationName

typedef NSString* NSNotificationName;
Availability: OpenStep
Description forthcoming.

# NSNotificationQueue types

### NSNotificationCoalescing

typedef NSUInteger NSNotificationCoalescing;
Availability: OpenStep
Description forthcoming.

### NSPostingStyle

typedef NSUInteger NSPostingStyle;
Availability: OpenStep
Description forthcoming.

# NSNumberFormatter types

### NSNumberFormatterBehavior

typedef NSUInteger NSNumberFormatterBehavior;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSNumberFormatterPadPosition

typedef NSUInteger NSNumberFormatterPadPosition;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSNumberFormatterRoundingMode

typedef NSUInteger NSNumberFormatterRoundingMode;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSNumberFormatterStyle

typedef NSUInteger NSNumberFormatterStyle;
Availability: MacOS-X 10.4.0
Description forthcoming.

# NSObjCRuntime types

### NSComparisonResult

typedef NS_ENUM(NSInteger) NSComparisonResult;
Availability: OpenStep
Contains values `NSOrderedSame`, `NSOrderedAscending` `NSOrderedDescending`, for left hand side equals, less than, or greater than right hand side.

NSOrderedAscending
NSOrderedSame
NSOrderedDescending

### NSEnumerationOptions

typedef NS_OPTIONS(NSUInteger) NSEnumerationOptions;
Availability: OpenStep
Backwards compatibility macro for the objc_designated_initializer attribute
Bitfield used to specify options to control enumeration over collections.

NSEnumerationConcurrent
NSEnumerationReverse
  Specifies that the enumeration is concurrency-safe. Note that this does not mean that it will be carried out in a concurrent manner, only that it can be.

### NSExceptionName

typedef NSString* NSExceptionName;
Availability: OpenStep
Declare the foundation export macro as an alias to GS_EXPORT
Declare NSExceptionName

### NSInteger

typedef intptr_t NSInteger;
Availability: OpenStep
Description forthcoming.

### NSSortOptions

typedef NS_OPTIONS(NSUInteger) NSSortOptions;
Availability: OpenStep
Bitfield used to specify options to control the sorting of collections.

NSSortConcurrent
NSSortStable
  Specifies that the sort is concurrency-safe. Note that this does not mean that it will be carried out in a concurrent manner, only that it can be.

### NSUInteger

typedef uintptr_t NSUInteger;
Availability: OpenStep
Description forthcoming.

# NSOperation types

### NSOperationQueuePriority

typedef NSInteger NSOperationQueuePriority;
Availability: MacOS-X 10.5.0
Description forthcoming.

# NSPathUtilities types

### NSSearchPathDirectory

typedef NSUInteger NSSearchPathDirectory;
Availability: MacOS-X 10.0.0
Enumeration of possible requested directory type specifiers for NSSearchPathForDirectoriesInDomains() function. On a traditional GNUstep filesystem layout these correspond to the subdirectories that may be found in the various domains, such as "Library" and "Applications". In a different filesystem layout these directories might be located anywhere on disk.

    {
      NSApplicationDirectory,
      NSDemoApplicationDirectory,
      NSDeveloperApplicationDirectory,
      NSAdminApplicationDirectory,
      NSLibraryDirectory,
      NSDeveloperDirectory,
      NSUserDirectory,
      NSDocumentationDirectory,
      NSDocumentDirectory,
      NSCoreServiceDirectory,
      NSDesktopDirectory,
      NSCachesDirectory,
      NSApplicationSupportDirectory
      NSAllApplicationsDirectory,
      NSAllLibrariesDirectory,
      NSItemReplacementDirectory,
      GSLibrariesDirectory,
      GSToolsDirectory,
      GSAdminToolsDirectory,
      GSFontsDirectory,
      GSFrameworksDirectory,
      GSWebApplicationsDirectory
    }

### NSSearchPathDomainMask

typedef NSUInteger NSSearchPathDomainMask;
Availability: MacOS-X 10.0.0
Mask type for NSSearchPathForDirectoriesInDomains() function. A bitwise OR of one or more of `NSUserDomainMask, NSLocalDomainMask, NSNetworkDomainMask, NSSystemDomainMask, NSAllDomainsMask`.

# NSPersonNameComponentsFormatter types

### NSPersonNameComponentsFormatterOptions

typedef NSUInteger NSPersonNameComponentsFormatterOptions;
Availability: MacOS-X 10.11.0
Description forthcoming.

### NSPersonNameComponentsFormatterStyle

typedef NSUInteger NSPersonNameComponentsFormatterStyle;
Availability: MacOS-X 10.11.0
Description forthcoming.

# NSPointerFunctions types

### NSPointerFunctionsOptions

typedef NSUInteger NSPointerFunctionsOptions;
Availability: MacOS-X 10.5.0
An integer value containing memory option, personality option, and copying option.

# NSPort types

### NSSocketNativeHandle

typedef SOCKET NSSocketNativeHandle;
Availability: MacOS-X 10.0.0
Native socket type.

# NSProcessInfo types

### NSActivityOptions

typedef uint64_t NSActivityOptions;
Availability: MacOS-X 10.9.0
Description forthcoming.

# NSProgress types

### NSProgressFileOperationKind

typedef NSString* NSProgressFileOperationKind;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSProgressKind

typedef NSString* NSProgressKind;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSProgressUserInfoKey

typedef NSString* NSProgressUserInfoKey;
Availability: MacOS-X 10.9.0
Description forthcoming.

# NSPropertyList types

### NSPropertyListFormat

typedef NSUInteger NSPropertyListFormat;
Availability: MacOS-X 10.0.0
Specifies the serialisation format for a serialised property list.

- NSPropertyListOpenStepFormat the most human-readable format
- NSPropertyListXMLFormat_v1_0 portable and readable
- NSPropertyListBinaryFormat_v1_0 the standard format on macos-x
- NSPropertyListGNUstepFormat extension of OpenStep format
- NSPropertyListGNUstepBinaryFormat efficient, hardware independent

### NSPropertyListMutabilityOptions

typedef NSUInteger NSPropertyListMutabilityOptions;
Availability: MacOS-X 10.0.0
Describes the mutability to use when generating objects during deserialisation of a property list.

- NSPropertyListImmutable all objects in created list are immutable
- NSPropertyListMutableContainers dictionaries, arrays, strings and data objects are mutable

### NSPropertyListReadOptions

typedef NSUInteger NSPropertyListReadOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

### NSPropertyListWriteOptions

typedef NSUInteger NSPropertyListWriteOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSRange types

### NSRange

typedef struct _NSRange NSRange;
Availability: OpenStep

    {
      NSUInteger location;
      NSUInteger length;
    }

The NSRange type is used to specify ranges of locations, typically items in an array, characters in a string, and bytes in a data object.

As 'boundary' or 'fencepost' errors are a particularly common problem in programming, it is important that you understand how an NSRange works.

An NSRange consists of a location and a length. The points that are considered to lie in a range are the integers from the location to the location plus the length, so the number of points in a range is the length of the range plus one.
However, if you consider these points like the marks on a ruler, you can only store information between points. So the number of items that can be stored in a range is the length of the range.

### NSRangePointer

typedef NSRange* NSRangePointer;
Availability: MacOS-X 10.0.0
Pointer to an NSRange structure.

# NSRegularExpression types

### GSRegexEnumerationCallback

typedef void(* GSRegexEnumerationCallback;
Availability: MacOS-X 10.0.0, Base 1.31.0
Enumeration with a C function callback uses this prototype

### NSMatchingFlags

typedef NSUInteger NSMatchingFlags;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSMatchingOptions

typedef NSUInteger NSMatchingOptions;
Availability: MacOS-X 10.0.0
Description forthcoming.

### NSRegularExpressionOptions

typedef NSUInteger NSRegularExpressionOptions;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSRunLoop types

### NSRunLoopMode

typedef NSString* NSRunLoopMode;
Availability: OpenStep
Description forthcoming.

### RunLoopEventType

typedef enum ... RunLoopEventType;
Availability: OpenStep
This type specifies the kinds of event which may be 'watched' in a run loop.

ET_RPORT
ET_WINMSG
ET_TRIGGER
ET_WDESC
ET_RPORT
ET_EDESC
ET_TRIGGER

# NSStream types

### NSStreamEvent

typedef NSUInteger NSStreamEvent;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

### NSStreamStatus

typedef NSUInteger NSStreamStatus;
Availability: MacOS-X 10.4.0, Base 1.2.0
Description forthcoming.

# NSString types

### NSStringCompareOptions

typedef NSUInteger NSStringCompareOptions;
Availability: OpenStep
Description forthcoming.

### NSStringEncoding

typedef enum _NSStringEncoding NSStringEncoding;
Availability: OpenStep

Enumeration of available encodings for converting between bytes and characters (in NSString s). The ones that are shared with OpenStep and Cocoa are: `NSASCIIStringEncoding, NSNEXTSTEPStringEncoding, NSJapaneseEUCStringEncoding, NSUTF8StringEncoding, NSISOLatin1StringEncoding, NSSymbolStringEncoding, NSNonLossyASCIIStringEncoding, NSShiftJISStringEncoding, NSISOLatin2StringEncoding, NSUnicodeStringEncoding, NSWindowsCP1251StringEncoding, NSWindowsCP1252StringEncoding, NSWindowsCP1253StringEncoding, NSWindowsCP1254StringEncoding, NSWindowsCP1250StringEncoding, NSISO2022JPStringEncoding, NSMacOSRomanStringEncoding, NSProprietaryStringEncoding` .

Additional encodings available under GNUstep are: `NSKOI8RStringEncoding, NSISOLatin3StringEncoding, NSISOLatin4StringEncoding, NSISOCyrillicStringEncoding, NSISOArabicStringEncoding, NSISOGreekStringEncoding, NSISOHebrewStringEncoding, NSISOLatin5StringEncoding, NSISOLatin6StringEncoding, NSISOThaiStringEncoding, NSISOLatin7StringEncoding, NSISOLatin8StringEncoding, NSISOLatin9StringEncoding, NSChineseEUCStringEncoding, NSUTF7StringEncoding, NSGSM0338StringEncoding, NSBig5StringEncoding, NSKoreanEUCStringEncoding, NSDOSLatinUSStringEncoding, NSDOSGreekStringEncoding, NSDOSBalticRimStringEncoding, NSDOSLatin1StringEncoding, NSDOSGreek1StringEncoding, NSDOSLatin2StringEncoding, NSDOSCyrillicStringEncoding, NSDOSTurkishStringEncoding, NSDOICortugueseStringEncoding, NSDOSIcelandicStringEncoding, NSDOSHebrewStringEncoding, NSDOSCanadianFrenchStringEncoding, NSDOSArabicStringEncoding, NSDOSNordicStringEncoding, NSDOSRussianStringEncoding, NSDOSGreek2StringEncoding, NSDOSThaiStringEncoding, NSDOSJapaneseStringEncoding, NSDOSChineseSimplifStringEncoding, NSDOSKoreanStringEncoding, NSDOSChineseTradStringEncoding, NSWindowsHebrewStringEncoding, NSWindowsArabicStringEncoding, NSWindowsBalticRimStringEncoding, NSWindowsVietnameseStringEncoding NSWindowsKoreanJohabStringEncoding` .

GSUndefinedEncoding
NSASCIIStringEncoding
NSNEXTSTEPStringEncoding
NSJapaneseEUCStringEncoding
NSUTF8StringEncoding
NSISOLatin1StringEncoding
NSSymbolStringEncoding
NSNonLossyASCIIStringEncoding
NSShiftJISStringEncoding
NSISOLatin2StringEncoding
NSUnicodeStringEncoding
NSWindowsCP1251StringEncoding
NSWindowsCP1252StringEncoding
NSWindowsCP1253StringEncoding
NSWindowsCP1254StringEncoding
NSWindowsCP1250StringEncoding
NSISO2022JPStringEncoding
NSMacOSRomanStringEncoding
NSUTF16StringEncoding
NSUTF16BigEndianStringEncoding
NSUTF16LittleEndianStringEncoding
NSUTF32StringEncoding
NSUTF32BigEndianStringEncoding
NSUTF32LittleEndianStringEncoding
NSProprietaryStringEncoding
NSGSM0338StringEncoding
NSMacOSJapaneseStringEncoding
NSMacOSTraditionalChineseStringEncoding
NSMacOSKoreanStringEncoding
NSMacOSArabicStringEncoding
NSMacOSHebrewStringEncoding
NSMacOSGreekStringEncoding
NSMacOSCyrillicStringEncoding
NSMacOSDevanagariStringEncoding
NSMacOSGurmukhiStringEncoding
NSMacOSGujaratiStringEncoding
NSMacOSOriyaStringEncoding
NSMacOSBengaliStringEncoding
NSMacOSTamilStringEncoding
NSMacOSTeluguStringEncoding
NSMacOSKannadaStringEncoding
NSMacOSMalayalamStringEncoding
NSMacOSSinhaleseStringEncoding
NSMacOSBurmeseStringEncoding
NSMacOSKhmerStringEncoding
NSMacOSThaiStringEncoding
NSMacOSLaotianStringEncoding
NSMacOSGeorgianStringEncoding
NSMacOSArmenianStringEncoding
NSMacOSSimplifiedChineseStringEncoding
NSMacOSTibetanStringEncoding
NSMacOSMongolianStringEncoding
NSMacOSEthiopicStringEncoding
NSMacOSCentralEuropeanRomanStringEncoding
NSMacOSVietnameseStringEncoding
NSMacOSExtendedArabicStringEncoding
NSMacOSSymbolStringEncoding
NSMacOSDingbatsStringEncoding
NSMacOSTurkishStringEncoding
NSMacOSCroatianStringEncoding
NSMacOSIcelandicStringEncoding
NSMacOSRomanianStringEncoding
NSMacOSCelticStringEncoding
NSMacOSGaelicStringEncoding
NSMacOSKeyboardSymbolsStringEncoding
NSMacOSFarsiStringEncoding
NSMacOSUkrainianStringEncoding
NSMacOSInuitStringEncoding
NSMacVT100StringEncoding
NSMacHFSStringEncoding
GS_API_LATEST
NSUTF7IMAPStringEncoding
NSISOLatin3StringEncoding
NSISOLatin4StringEncoding
NSISOCyrillicStringEncoding
NSISOArabicStringEncoding
NSISOGreekStringEncoding
NSISOHebrewStringEncoding
NSISOLatin5StringEncoding
NSISOLatin6StringEncoding
NSISOThaiStringEncoding
NSISOLatin7StringEncoding
NSISOLatin8StringEncoding
NSISOLatin9StringEncoding
GS_API_LATEST
NSISOLatinBalticRimStringEncoding
NSISOLatinCelticStringEncoding
NSISOLatinCyrillicStringEncoding
NSISOLatinGreekStringEncoding
NSISOLatinHebrewStringEncoding
NSISOLatinNordicStringEncoding
NSISOLatinThaiStringEncoding
NSISOLatinTurkishStringEncoding
NSDOSLatinUSStringEncoding
NSDOSGreekStringEncoding
NSDOSBalticRimStringEncoding
NSDOSLatin1StringEncoding
NSDOSGreek1StringEncoding
NSDOSLatin2StringEncoding
NSDOSCyrillicStringEncoding
NSDOSTurkishStringEncoding
NSDOICortugueseStringEncoding
NSDOSIcelandicStringEncoding
NSDOSHebrewStringEncoding
NSDOSCanadianFrenchStringEncoding
NSDOSArabicStringEncoding
NSDOSNordicStringEncoding
NSDOSRussianStringEncoding
NSDOSGreek2StringEncoding
NSDOSThaiStringEncoding
NSDOSJapaneseStringEncoding
NSDOSChineseSimplifStringEncoding
NSDOSKoreanStringEncoding
NSDOSChineseTradStringEncoding
NSWindowsLatin1StringEncoding
NSWindowsLatin2StringEncoding
NSWindowsCyrillicStringEncoding
NSWindowsGreekStringEncoding
NSWindowsLatin5StringEncoding
NSWindowsHebrewStringEncoding
NSWindowsArabicStringEncoding
NSWindowsBalticRimStringEncoding
NSWindowsVietnameseStringEncoding
NSWindowsKoreanJohabStringEncoding
NSJIS_X0201_76StringEncoding
NSJIS_X0208_83StringEncoding
NSJIS_X0208_90StringEncoding
NSJIS_X0212_90StringEncoding
NSJIS_C6226_78StringEncoding
GS_API_LATEST
GS_API_LATEST
NSShiftJIS_X0213_00StringEncoding
NSGBK_95StringEncoding
NSGB_18030_2000StringEncoding
NSKSC_5601_87StringEncoding
NSKSC_5601_92_JohabStringEncoding
NSCNS_11643_92_P1StringEncoding
NSCNS_11643_92_P2StringEncoding
NSCNS_11643_92_P3StringEncoding
NSISO2022JapaneseStringEncoding
NSISO2022Japanese2StringEncoding
NSISO2022Japanese1StringEncoding
NSISO2022Japanese3StringEncoding
NSISO2022ChineseStringEncoding
NSISO2022ExtendedChineseStringEncoding
NSISO2022KoreanStringEncoding
NSEUCJapaneseStringEncoding
NSEUCChineseStringEncoding
NSEUCTaiwanChineseStringEncoding
NSEUCKoreanStringEncoding
NSKoreanEUCStringEncoding
NSChineseEUCStringEncoding
NSTaiwanChineseEUCStringEncoding
NSKOI8RStringEncoding
NSBig5StringEncoding
NSMacRomanLatin1StringEncoding
NSHZ_GB_2312StringEncoding
NSBig5_HKSCS_1999StringEncoding
GS_API_LATEST
NSKOI8UStringEncoding
NSBig5EStringEncoding
GS_API_LATEST
NSEBCDICUSStringEncoding
NSEBCDICCP037StringEncoding

### NSStringEncodingConversionOptions

typedef NSUInteger NSStringEncodingConversionOptions;
Availability: MacOS-X 10.4.0
Description forthcoming.

### NSStringEnumerationOptions

typedef NSUInteger NSStringEnumerationOptions;
Availability: MacOS-X 10.6.0
Description forthcoming.

### unichar

typedef uint16_t unichar;
Availability: OpenStep
Type for representing unicode characters. (16-bit)

# NSTask types

### NSTaskTerminationReason

typedef NSInteger NSTaskTerminationReason;
Availability: MacOS-X 10.5.0
Description forthcoming.

# NSTextCheckingResult types

### NSTextCheckingType

typedef uint64_t NSTextCheckingType;
Availability: OpenStep
Description forthcoming.

### NSTextCheckingTypes

typedef uint64_t NSTextCheckingTypes;
Availability: MacOS-X 10.6.0
Description forthcoming.

# NSTimeZone types

### NSTimeZoneNameStyle

typedef NSInteger NSTimeZoneNameStyle;
Availability: MacOS-X 10.5.0
Description forthcoming.

# NSURLCache types

### NSURLCacheStoragePolicy

typedef enum ... NSURLCacheStoragePolicy;
Availability: MacOS-X 10.2.0, Base 1.13.0
Specifies the cache storage policy.

NSURLCacheStorageAllowed
NSURLCacheStorageAllowedInMemoryOnly
  Unrestricted caching
NSURLCacheStorageNotAllowed
  In memory caching only

# NSURLCredential types

### NSURLCredentialPersistence

typedef enum ... NSURLCredentialPersistence;
Availability: MacOS-X 10.2.0, Base 1.13.0
Controls how long a credential is retained.

NSURLCredentialPersistenceNone
NSURLCredentialPersistenceForSession
  Don't save at all
NSURLCredentialPersistencePermanent
  Save for current session
NSURLCredentialPersistenceSynchronizable
  Save forever (on disk)

# NSURL types

### NSURLBookmarkResolutionOptions

typedef NSUInteger NSURLBookmarkResolutionOptions;
Availability: MacOS-X 10.6.0
URL Bookmark Resolution Options

# NSURLHandle types

### NSURLHandleStatus

typedef NSUInteger NSURLHandleStatus;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSURLRequest types

### NSURLRequestCachePolicy

typedef NSUInteger NSURLRequestCachePolicy;
Availability: MacOS-X 10.2.0, Base 1.13.0

NSURLRequestUseProtocolCachePolicy
  Says that any protocol specific cache policy should be used... this is the default.
NSURLRequestReloadIgnoringCacheData
  Says the data should be re-loaded from source rather than any cached data being used, irrespective of any protocol standard.
NSURLRequestReturnCacheDataElseLoad
  Says to use cached data if any is available, but to load from source if the cache is empty. Ignores any protocol specific logic (like cache aging).
NSURLRequestReturnCacheDataDontLoad
  Says to use cached data if any is available, but to return `nil` without loading if the cache is empty.

### NSURLRequestNetworkServiceType

typedef NSUInteger NSURLRequestNetworkServiceType;
Availability: MacOS-X 10.7.0, Base 1.13.0

NSURLNetworkServiceTypeDefault
  Specifies standard network traffic. Most connections should be made using this service type this is the default.
NSURLNetworkServiceTypeVoIP
  Specifies that the request is for VoIP traffic.
NSURLNetworkServiceTypeVideo
  Specifies that the request is for video traffic.
NSURLNetworkServiceTypeBackground
  Specifies that the request is for background traffic.
NSURLNetworkServiceTypeVoice
  Specifies that the request is for voice traffic.
NSURLNetworkServiceTypeCallSignaling
  Call Signaling - enumeration cases.

# NSURLSession types

### NSURLSessionAuthChallengeDisposition

typedef NS_ENUM(NSInteger) NSURLSessionAuthChallengeDisposition;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLSessionResponseDisposition

typedef NS_ENUM(NSInteger) NSURLSessionResponseDisposition;
Availability: MacOS-X 10.9.0
Description forthcoming.

### NSURLSessionTaskState

typedef NS_ENUM(NSUInteger) NSURLSessionTaskState;
Availability: MacOS-X 10.9.0
Description forthcoming.

# NSUserNotification types

### NSUserNotificationActivationType

typedef NSInteger NSUserNotificationActivationType;
Availability: MacOS-X 10.8.0
Description forthcoming.

# NSUUID types

### gsuuid_t

typedef uint8_t gsuuid_t;
Availability: MacOS-X 10.8.0
Description forthcoming.

# NSXMLDocument types

### NSXMLDocumentContentKind

typedef NSUInteger NSXMLDocumentContentKind;
Availability: OpenStep
Define what type of document this is.

# NSXMLDTDNode types

### NSXMLDTDNodeKind

typedef NSUInteger NSXMLDTDNodeKind;
Availability: OpenStep
Description forthcoming.

# NSXMLNode types

### NSXMLNodeKind

typedef NSUInteger NSXMLNodeKind;
Availability: OpenStep
Description forthcoming.

# NSXMLParser types

### NSXMLParserError

typedef NSUInteger NSXMLParserError;
Availability: MacOS-X 10.3.0
Description forthcoming.

# NSXPCConnection types

### NSXPCConnectionOptions

typedef NSUInteger NSXPCConnectionOptions;
Availability: MacOS-X 10.8.0
Description forthcoming.

### gid_t

typedef unsigned int gid_t;
Availability: MacOS-X 10.8.0
Description forthcoming.

### pid_t

typedef int pid_t;
Availability: MacOS-X 10.8.0
Description forthcoming.

### uid_t

typedef unsigned int uid_t;
Availability: MacOS-X 10.8.0
Description forthcoming.

# NSZone types

### NSZone

typedef struct _NSZone NSZone;
Availability: OpenStep
Description forthcoming.

# NSDebug variables

### NSDeallocateZombies

BOOL NSDeallocateZombies;
Availability: OpenStep
Enable/disable object deallocation.

If zombies are enabled, objects are by default not deallocated, and memory leaks. The NSDeallocateZombies variable lets you say that the the memory used by zombies should be freed.

Doing this makes the behavior of zombies similar to that when zombies are not enabled... the memory occupied by the zombie may be re-used for other purposes, at which time the isa pointer may be overwritten and the zombie behavior will cease.

The default value of this boolean is `NO`, but this can be controlled by the NSDeallocateZombies environment variable.

### NSDebugEnabled

BOOL NSDebugEnabled;
Availability: OpenStep
A global variable that you can use to enable debug behaviour in your program.

### NSZombieEnabled

BOOL NSZombieEnabled;
Availability: OpenStep
Enable/disable zombies.

When an object is deallocated, its isa pointer is normally modified to the hexadecimal value 0xdeadface, so that any attempt to send a message to the deallocated object will cause a crash, and examination of the object within the debugger will show the 0xdeadface value... making it obvious why the program crashed.

Turning on zombies changes this behavior so that the isa pointer is modified to be that of the NSZombie class. When messages are sent to the object, instead of crashing, NSZombie will use NSLog() to produce an error message. By default the memory used by the object will not really be freed, so error messages will continue to be generated whenever a message is sent to the object, and the object instance variables will remain available for examination by the debugger.

The default value of this boolean is `NO`, but this can be controlled by the NSZombieEnabled environment variable.

# NSError variables

### NSCocoaErrorDomain

NSErrorDomainconst NSCocoaErrorDomain;
Availability: MacOS-X 10.4.0
Domain for Foundation and AppKit (base and gui) errors.

### NSMACHErrorDomain

NSErrorDomainconst NSMACHErrorDomain;
Availability: MacOS-X 10.3.0
Domain for system errors (on MACH).

### NSOSStatusErrorDomain

NSErrorDomainconst NSOSStatusErrorDomain;
Availability: MacOS-X 10.3.0
Domain for system errors.

### NSPOSIXErrorDomain

NSErrorDomainconst NSPOSIXErrorDomain;
Availability: MacOS-X 10.3.0
Domain for system and system library errors.

# NSFileManager variables

### enum _NSDirectoryEnumerationOptions

enum _NSDirectoryEnumerationOptions enum _NSDirectoryEnumerationOptions;
Availability: MacOS-X 10.0.0
Description forthcoming.

# NSLinguisticTagger variables

### NSLinguisticTagAdjective

NSLinguisticTagconst NSLinguisticTagAdjective;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagAdverb

NSLinguisticTagconst NSLinguisticTagAdverb;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagClassifier

NSLinguisticTagconst NSLinguisticTagClassifier;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagCloseParenthesis

NSLinguisticTagconst NSLinguisticTagCloseParenthesis;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagCloseQuote

NSLinguisticTagconst NSLinguisticTagCloseQuote;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagConjunction

NSLinguisticTagconst NSLinguisticTagConjunction;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagDash

NSLinguisticTagconst NSLinguisticTagDash;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagDeterminer

NSLinguisticTagconst NSLinguisticTagDeterminer;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagIdiom

NSLinguisticTagconst NSLinguisticTagIdiom;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagInterjection

NSLinguisticTagconst NSLinguisticTagInterjection;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagNoun

NSLinguisticTagconst NSLinguisticTagNoun;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagNumber

NSLinguisticTagconst NSLinguisticTagNumber;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOpenParenthesis

NSLinguisticTagconst NSLinguisticTagOpenParenthesis;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOpenQuote

NSLinguisticTagconst NSLinguisticTagOpenQuote;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOrganizationName

NSLinguisticTagconst NSLinguisticTagOrganizationName;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOther

NSLinguisticTagconst NSLinguisticTagOther;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOtherPunctuation

NSLinguisticTagconst NSLinguisticTagOtherPunctuation;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOtherWhitespace

NSLinguisticTagconst NSLinguisticTagOtherWhitespace;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagOtherWord

NSLinguisticTagconst NSLinguisticTagOtherWord;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagParagraphBreak

NSLinguisticTagconst NSLinguisticTagParagraphBreak;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagParticle

NSLinguisticTagconst NSLinguisticTagParticle;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagPersonalName

NSLinguisticTagconst NSLinguisticTagPersonalName;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagPlaceName

NSLinguisticTagconst NSLinguisticTagPlaceName;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagPreposition

NSLinguisticTagconst NSLinguisticTagPreposition;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagPronoun

NSLinguisticTagconst NSLinguisticTagPronoun;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagPunctuation

NSLinguisticTagconst NSLinguisticTagPunctuation;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeLanguage

NSLinguisticTagSchemeconst NSLinguisticTagSchemeLanguage;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeLemma

NSLinguisticTagSchemeconst NSLinguisticTagSchemeLemma;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeLexicalClass

NSLinguisticTagSchemeconst NSLinguisticTagSchemeLexicalClass;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeNameType

NSLinguisticTagSchemeconst NSLinguisticTagSchemeNameType;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeNameTypeOrLexicalClass

NSLinguisticTagSchemeconst NSLinguisticTagSchemeNameTypeOrLexicalClass;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeScript

NSLinguisticTagSchemeconst NSLinguisticTagSchemeScript;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSchemeTokenType

NSLinguisticTagSchemeconst NSLinguisticTagSchemeTokenType;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagSentenceTerminator

NSLinguisticTagconst NSLinguisticTagSentenceTerminator;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagVerb

NSLinguisticTagconst NSLinguisticTagVerb;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagWhitespace

NSLinguisticTagconst NSLinguisticTagWhitespace;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagWord

NSLinguisticTagconst NSLinguisticTagWord;
Availability: MacOS-X 10.7.0
Description forthcoming.

### NSLinguisticTagWordJoiner

NSLinguisticTagconst NSLinguisticTagWordJoiner;
Availability: MacOS-X 10.7.0
Description forthcoming.

# NSLock variables

### _NSLock_error_handler

NSLock_error_handler* _NSLock_error_handler;
Availability: OpenStep
Code may replace this function pointer in order to intercept the normal logging of a deadlock.

# NSMapTable variables

### struct _NSMapTableValueCallBacks

struct _NSMapTableValueCallBacks struct _NSMapTableValueCallBacks;
Availability: OpenStep
Retaining function called when adding elements to table.
Notionally this must not modify the element (the element may not actually have a retain count, or the retain count may be stored externally to the element, but in practice this often actually changes a counter within the element).
Releasing function called when a data element is removed from the table. This may decrease a retain count or may actually destroy the element.
Description function. Generates a string describing the element and does not modify the element itself.

# NSNotificationQueue variables

### struct _NSNotificationQueueList

struct _NSNotificationQueueList struct _NSNotificationQueueList;
Availability: OpenStep
Structure used internally by NSNotificationQueue .

# NSObjCRuntime variables

### _NSLogDescriptor

int _NSLogDescriptor;
Availability: Not in OpenStep/MacOS-X
A variable holding the file descriptor to which NSLogv() messages are written by default. GNUstep initialises this to stderr.
You may change this, but for thread safety should use the lock provided by GSLogLock() to protect the change.

### _NSLog_printf_handler

NSLog_printf_handler* _NSLog_printf_handler;
Availability: Not in OpenStep/MacOS-X
A pointer to a function used to actually write the log data.

GNUstep initialises this to a function implementing the standard behavior for logging, but you may change this in your program in order to implement any custom behavior you wish. You should use the lock returned by GSLogLock() to protect any change you make.

Calls from NSLogv() to the function pointed to by this variable are protected by a lock, and should therefore be thread safe.

This function should accept a single NSString argument and return void.

The default implementation in GNUstep performs as follows -

- Converts the string to be logged to data in the default CString encoding or, if that is not possible, to UTF8 data.
- If the system supports writing to syslog and the user default to say that logging should be done to syslog (GSLogSyslog) is set, writes the data to the syslog.
  On an mswindows system, where syslog is not available, the GSLogSyslog user default controls whether or not data is written to the system event log,
- Otherwise, writes the data to the file descriptor stored in the variable _NSLogDescriptor , which is set by default to stderr.
  Your program may change this descriptor... but you should protect changes using the lock provided by GSLogLock() .
  NB. If the write to the descriptor fails, and the system supports writing to syslog, then the log is written to syslog as if the appropriate user default had been set.

# NSRange variables

### struct _NSRange

struct _NSRange struct _NSRange;
Availability: OpenStep
Description forthcoming.

# NSRunLoop variables

### NSDefaultRunLoopMode

NSRunLoopModeconst NSDefaultRunLoopMode;
Availability: OpenStep
Run loop mode used to deal with input sources other than NSConnections or dialog windows. Most commonly used. Defined in `Foundation/NSRunLoop.h`.

### NSRunLoopCommonModes

NSRunLoopModeconst NSRunLoopCommonModes;
Availability: OpenStep
Description forthcoming.

# NSString variables

### _NSConstantStringClassReference

struct objc_class _NSConstantStringClassReference;
Availability: OpenStep
For internal use with NeXT runtime; needed, until Apple Radar 2870817 is fixed.

# NSZone variables

### struct NSZoneStats

struct NSZoneStats struct NSZoneStats;
Availability: Not in OpenStep/MacOS-X
`NSZoneStats` is the structure returned by the NSZoneStats() function that summarizes the current usage of a zone. It is similar to the structure mstats in the GNU C library. It has 5 fields of type `size_t` -

`bytes_total`
  This is the total size of memory managed by the zone, in bytes.
`chunks_used`
  This is the number of memory chunks in use in the zone.
`bytes_used`
  This is the number of bytes in use.
`chunks_free`
  This is the number of memory chunks that are not in use.
`bytes_free`
  This is the number of bytes managed by the zone that are not in use.

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