Class List
Here are the classes, structs, unions and interfaces with brief descriptions:

QXmppArchiveChat | Archived conversation as defined by XEP-0136: Message Archiving
QXmppArchiveChatIq | Represents an archive chat as defined by XEP-0136: Message Archiving
QXmppArchiveListIq | Represents an archive list as defined by XEP-0136: Message Archiving
QXmppArchiveManager | Makes it possible to access message archives as defined by XEP-0136: Message Archiving
QXmppArchiveMessage | Archived message as defined by XEP-0136: Message Archiving
QXmppArchivePrefIq | Represents an archive preference IQ as defined by XEP-0136: Message Archiving
QXmppArchiveRemoveIq | Represents an archive remove IQ as defined by XEP-0136: Message Archiving
QXmppArchiveRetrieveIq | Represents an archive retrieve IQ as defined by XEP-0136: Message Archiving
QXmppAttentionManager | Manages attention requests as defined by XEP-0224: Attention
QXmppBindIq | IQ used for resource binding as defined by RFC 3921
QXmppBitsOfBinaryContentId |
QXmppBitsOfBinaryData |
QXmppBitsOfBinaryDataList |
QXmppBitsOfBinaryIq |
QXmppBookmarkConference | Bookmark for a conference room, as defined by XEP-0048: Bookmarks
QXmppBookmarkManager | Allows you to store and retrieve bookmarks as defined by XEP-0048: Bookmarks
QXmppBookmarkSet | The QXmppbookmarkSets class represents a set of bookmarks, as defined by XEP-0048: Bookmarks
QXmppBookmarkUrl | Bookmark for a web page, as defined by XEP-0048: Bookmarks
QXmppByteStreamIq | QXmppByteStreamIq represents a SOCKS5 bytestreams negoatiation IQ as defined by XEP-0065: SOCKS5 Bytestreams
StreamHost | StreamHost represents information about a specific SOCKS5 bytestreams host
QXmppCall | Voice-Over-IP call to a remote party
QXmppCallManager | Support for making and receiving voice calls
QXmppCallStream | RTP stream in a VoIP call
QXmppCarbonManager | Handles message carbons as described in XEP-0280: Message Carbons
QXmppClient | Main class for using QXmpp
QXmppClientExtension | Base class for QXmppClient extensions
QXmppConfiguration | Holds configuration options
QXmppDataForm | Data form as defined by XEP-0004: Data Forms
Field | The QXmppDataForm::Field class represents a data form field as defined by XEP-0004: Data Forms
Media | The QXmppDataForm::Media class represents a media field as defined by XEP-0221: Data Forms Media Element
MediaSource | The `QXmppDataForm::MediaSource` class represents a link to one of possibly multiple sources for a media element from XEP-0221: Data Forms Media Element consisting of a MIME type and a QUrl
QXmppDialback | Stanza used for the Server Dialback protocol as specified by XEP-0220: Server Dialback
QXmppDiscoveryIq | QXmppDiscoveryIq represents a discovery IQ request or result containing a list of features and other information about an entity as defined by XEP-0030: Service Discovery
Identity | Identity represents one of possibly multiple identities of an XMPP entity obtained from a service discovery request as defined in XEP-0030: Service Discovery
Item | Item represents a related XMPP entity that can be queried using XEP-0030: Service Discovery
QXmppDiscoveryManager | Makes it possible to discover information about other entities as defined by XEP-0030: Service Discovery
QXmppElement | QXmppElement represents a raw XML element with possible children
QXmppEntityTimeIq | QXmppEntityTimeIq represents an entity time request/response as defined in XEP-0202: Entity Time
QXmppEntityTimeManager | Provided the functionality to get the local time of an entity as defined by XEP-0202: Entity Time
QXmppExtendedAddress | Represents an extended address as defined by XEP-0033: Extended Stanza Addressing
QXmppHttpUploadRequestIq | Represents an HTTP File Upload IQ for requesting an upload slot as defined by XEP-0363: HTTP File Upload
QXmppHttpUploadSlotIq | Represents an HTTP File Upload IQ result for receiving an upload slot as defined by XEP-0363: HTTP File Upload
QXmppIbbCloseIq | QXmppIbbCloseIq represents an IBB close request as defined by XEP-0047: In-Band Bytestreams
QXmppIbbDataIq | QXmppIbbCloseIq represents an IBB data request as defined by XEP-0047: In-Band Bytestreams
QXmppIbbOpenIq | QXmppIbbOpenIq represents an IBB open request as defined by XEP-0047: In-Band Bytestreams
QXmppIceComponent | Piece of a media stream requiring a single transport address, as defined by RFC 5245 (Interactive Connectivity Establishment)
QXmppIceConnection | Set of UDP sockets capable of performing Interactive Connectivity Establishment (RFC 5245)
QXmppIncomingClient | Interface for password checkers
QXmppIncomingServer | Incoming XMPP stream from an XMPP server
QXmppInvokable |
QXmppIq | Base class for all IQs
QXmppJingleCandidate | Transport candidate as specified by XEP-0176: Jingle ICE-UDP Transport Method
QXmppJingleIq | IQ used for initiating media sessions as specified by XEP-0166: Jingle
QXmppJinglePayloadType | Payload type as specified by XEP-0167: Jingle RTP Sessions and RFC 5245
QXmppLoggable | Source of logging messages
QXmppLogger | Sink for logging messages
QXmppMamManager | Makes it possible to access message archives as defined by XEP-0313: Message Archive Management
QXmppMamQueryIq | Query IQ for XEP-0313: Message Archive Management
QXmppMamResultIq | The QXmppMamQueryIq class represents the result IQ for XEP-0313: Message Archive Management
QXmppMessage | XMPP message
QXmppMessageReceiptManager | Makes it possible to send and receive message delivery receipts as defined in XEP-0184: Message Delivery Receipts
QXmppMixInfoItem | PubSub item of a MIX channel containing channel information as defined by XEP-0369: Mediated Information eXchange (MIX)
QXmppMixInvitation | Used to invite a user to a XEP-0369: Mediated Information eXchange (MIX) channel as defined by XEP-0407: Mediated Information eXchange (MIX): Miscellaneous Capabilities
QXmppMixIq | IQ used to do actions on a MIX channel as defined by XEP-0369: Mediated Information eXchange (MIX) and XEP-0405: Mediated Information eXchange (MIX): Participant Server Requirements
QXmppMixParticipantItem | PubSub item of a MIX channel participant as defined by XEP-0369: Mediated Information eXchange (MIX)
QXmppMucAdminIq | Chat room administration IQ as defined by XEP-0045: Multi-User Chat
QXmppMucItem | Chat room "item"
QXmppMucManager | Makes it possible to interact with multi-user chat rooms as defined by XEP-0045: Multi-User Chat
QXmppMucOwnerIq | Chat room configuration IQ as defined by XEP-0045: Multi-User Chat
QXmppMucRoom | Multi-user chat room as defined by XEP-0045: Multi-User Chat
QXmppNonSASLAuthIq | QXmppNonSASLAuthIq represents a Non-SASL authentication IQ as defined by XEP-0078: Non-SASL Authentication
QXmppOutgoingClient | Outgoing XMPP stream to an XMPP server
QXmppOutgoingServer | Outgoing XMPP stream to another XMPP server
QXmppPasswordChecker | Abstract password checker
QXmppPasswordReply | Password reply
QXmppPasswordRequest | Password request
QXmppPingIq | QXmppPingIq represents a Ping IQ as defined by XEP-0199: XMPP Ping
QXmppPresence | XMPP presence stanza
QXmppPubSubIq | IQ used for the publish-subscribe mechanisms defined by XEP-0060: Publish-Subscribe
QXmppPubSubItem | Publish-subscribe item as defined by XEP-0060: Publish-Subscribe
QXmppPushEnableIq | This class represents an IQ to enable or disablepush notifications on the user server
QXmppRegisterIq | Registration IQ as defined by XEP-0077: In-Band Registration
QXmppRegistrationManager | Manages in-band registration and account management tasks like changing the password as defined in XEP-0077: In-Band Registration
QXmppResultSetQuery | Set element in a query as defined by XEP-0059: Result Set Management
QXmppResultSetReply | Set element in a reply as defined by XEP-0059: Result Set Management
QXmppRosterIq | Roster IQ
Item | The QXmppRosterIq::Item class represents a roster entry
QXmppRosterManager | Access to a connected client's roster
QXmppRpcInvokeIq | IQ used to carry an RPC invocation as specified by XEP-0009: Jabber-RPC
QXmppRpcManager | Make it possible to invoke remote methods and to expose local interfaces for remote procedure calls, as specified by XEP-0009: Jabber-RPC
QXmppRpcResponseIq | IQ used to carry an RPC response as specified by XEP-0009: Jabber-RPC
QXmppServer | XMPP server
QXmppServerExtension | Base class for QXmppServer extensions
QXmppServerPlugin | Base class for QXmppServer plugins
QXmppSessionIq | IQ used for session establishment as defined by RFC 3921
QXmppSslServer | SSL-enabled TCP server
QXmppStanza | Base class for all XMPP stanzas
Error | Stanza error
QXmppStartTlsPacket | The QXmppStartTlsPacket represents packets used for initiating STARTTLS negotiation when connecting
QXmppStream | Base class for all XMPP streams
QXmppStreamFeatures | Features returned by an XMPP server or client
QXmppTransferJob | Single file transfer job
QXmppTransferManager | Support for sending and receiving files
QXmppUploadRequestManager | The QXmppUploadRequestManager implements the core of XEP-0369: HTTP File Upload
QXmppUploadService | QXmppUploadService represents an HTTP File Upload service
QXmppUtils | Static utility functions
QXmppVCardAddress | Represent a vCard address
QXmppVCardEmail | Represents a vCard e-mail address
QXmppVCardIq | Represents the XMPP vCard
QXmppVCardManager | Gets/sets XMPP vCards. It is an implementation of XEP-0054: vcard-temp
QXmppVCardOrganization | Represents organization information in XMPP vCards
QXmppVCardPhone | Represents a vCard phone number
QXmppVersionIq | IQ for conveying a software version as defined by XEP-0092: Software Version
QXmppVersionManager | Makes it possible to request for the software version of an entity as defined by XEP-0092: Software Version