    {-# LANGUAGE ImplicitParams, RankNTypes, TypeApplications #-}

    -- | Copyright  : Will Thompson and Iñaki García Etxebarria
    -- License    : LGPL-2.1
    -- Maintainer : Iñaki García Etxebarria
    --
    -- The purpose of the t'GI.Gdk.Objects.DisplayManager.DisplayManager' singleton object is to offer
    -- notification when displays appear or disappear or the default display
    -- changes.
    --
    -- You can use 'GI.Gdk.Objects.DisplayManager.displayManagerGet' to obtain the t'GI.Gdk.Objects.DisplayManager.DisplayManager'
    -- singleton, but that should be rarely necessary. Typically, initializing
    -- GTK+ opens a display that you can work with without ever accessing the
    -- t'GI.Gdk.Objects.DisplayManager.DisplayManager'.
    --
    -- The GDK library can be built with support for multiple backends.
    -- The t'GI.Gdk.Objects.DisplayManager.DisplayManager' object determines which backend is used
    -- at runtime.
    --
    -- When writing backend-specific code that is supposed to work with
    -- multiple GDK backends, you have to consider both compile time and
    -- runtime. At compile time, use the @/GDK_WINDOWING_X11/@, @/GDK_WINDOWING_WIN32/@
    -- macros, etc. to find out which backends are present in the GDK library
    -- you are building your application against. At runtime, use type-check
    -- macros like @/GDK_IS_X11_DISPLAY()/@ to find out which backend is in use:
    --
    -- ## Backend-specific code ## {@/backend/@-specific}
    --
    --
    -- === /C code/
    -- >
    -- >#ifdef GDK_WINDOWING_X11
    -- >  if (GDK_IS_X11_DISPLAY (display))
    -- >    {
    -- >      // make X11-specific calls here
    -- >    }
    -- >  else
    -- >#endif
    -- >#ifdef GDK_WINDOWING_QUARTZ
    -- >  if (GDK_IS_QUARTZ_DISPLAY (display))
    -- >    {
    -- >      // make Quartz-specific calls here
    -- >    }
    -- >  else
    -- >#endif
    -- >  g_error ("Unsupported GDK backend");
    --

    #if !defined(__HADDOCK_VERSION__)
    #define ENABLE_OVERLOADING
    #endif

    module GI.Gdk.Objects.DisplayManager
        (

    -- * Exported types
        DisplayManager(..)                      ,
        IsDisplayManager                        ,
        toDisplayManager                        ,

     -- * Methods
    -- |
    --
    --  === __Click to display all available methods, including inherited ones__
    -- ==== Methods
    -- [bindProperty]("GI.GObject.Objects.Object#g:method:bindProperty"), [bindPropertyFull]("GI.GObject.Objects.Object#g:method:bindPropertyFull"), [forceFloating]("GI.GObject.Objects.Object#g:method:forceFloating"), [freezeNotify]("GI.GObject.Objects.Object#g:method:freezeNotify"), [getv]("GI.GObject.Objects.Object#g:method:getv"), [isFloating]("GI.GObject.Objects.Object#g:method:isFloating"), [listDisplays]("GI.Gdk.Objects.DisplayManager#g:method:listDisplays"), [notify]("GI.GObject.Objects.Object#g:method:notify"), [notifyByPspec]("GI.GObject.Objects.Object#g:method:notifyByPspec"), [openDisplay]("GI.Gdk.Objects.DisplayManager#g:method:openDisplay"), [ref]("GI.GObject.Objects.Object#g:method:ref"), [refSink]("GI.GObject.Objects.Object#g:method:refSink"), [runDispose]("GI.GObject.Objects.Object#g:method:runDispose"), [stealData]("GI.GObject.Objects.Object#g:method:stealData"), [stealQdata]("GI.GObject.Objects.Object#g:method:stealQdata"), [thawNotify]("GI.GObject.Objects.Object#g:method:thawNotify"), [unref]("GI.GObject.Objects.Object#g:method:unref"), [watchClosure]("GI.GObject.Objects.Object#g:method:watchClosure").
    --
    -- ==== Getters
    -- [getData]("GI.GObject.Objects.Object#g:method:getData"), [getDefaultDisplay]("GI.Gdk.Objects.DisplayManager#g:method:getDefaultDisplay"), [getProperty]("GI.GObject.Objects.Object#g:method:getProperty"), [getQdata]("GI.GObject.Objects.Object#g:method:getQdata").
    --
    -- ==== Setters
    -- [setData]("GI.GObject.Objects.Object#g:method:setData"), [setDataFull]("GI.GObject.Objects.Object#g:method:setDataFull"), [setDefaultDisplay]("GI.Gdk.Objects.DisplayManager#g:method:setDefaultDisplay"), [setProperty]("GI.GObject.Objects.Object#g:method:setProperty").

    #if defined(ENABLE_OVERLOADING)
        ResolveDisplayManagerMethod             ,
    #endif

    -- ** get #method:get#

        displayManagerGet                       ,

    -- ** getDefaultDisplay #method:getDefaultDisplay#

    #if defined(ENABLE_OVERLOADING)
        DisplayManagerGetDefaultDisplayMethodInfo,
    #endif
        displayManagerGetDefaultDisplay         ,

    -- ** listDisplays #method:listDisplays#

    #if defined(ENABLE_OVERLOADING)
        DisplayManagerListDisplaysMethodInfo    ,
    #endif
        displayManagerListDisplays              ,

    -- ** openDisplay #method:openDisplay#

    #if defined(ENABLE_OVERLOADING)
        DisplayManagerOpenDisplayMethodInfo     ,
    #endif
        displayManagerOpenDisplay               ,

    -- ** setDefaultDisplay #method:setDefaultDisplay#

    #if defined(ENABLE_OVERLOADING)
        DisplayManagerSetDefaultDisplayMethodInfo,
    #endif
        displayManagerSetDefaultDisplay         ,

     -- * Properties

    -- ** defaultDisplay #attr:defaultDisplay#
    -- | /No description available in the introspection data./

    #if defined(ENABLE_OVERLOADING)
        DisplayManagerDefaultDisplayPropertyInfo,
    #endif
        constructDisplayManagerDefaultDisplay   ,
    #if defined(ENABLE_OVERLOADING)
        displayManagerDefaultDisplay            ,
    #endif
        getDisplayManagerDefaultDisplay         ,
        setDisplayManagerDefaultDisplay         ,

     -- * Signals

    -- ** displayOpened #signal:displayOpened#

        DisplayManagerDisplayOpenedCallback     ,
    #if defined(ENABLE_OVERLOADING)
        DisplayManagerDisplayOpenedSignalInfo   ,
    #endif
        afterDisplayManagerDisplayOpened        ,
        onDisplayManagerDisplayOpened           ,

        ) where

    import Data.GI.Base.ShortPrelude
    import qualified Data.GI.Base.ShortPrelude as SP
    import qualified Data.GI.Base.Overloading as O
    import qualified Prelude as P

    import qualified Data.GI.Base.Attributes as GI.Attributes
    import qualified Data.GI.Base.BasicTypes as B.Types
    import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
    import qualified Data.GI.Base.GArray as B.GArray
    import qualified Data.GI.Base.GClosure as B.GClosure
    import qualified Data.GI.Base.GError as B.GError
    import qualified Data.GI.Base.GHashTable as B.GHT
    import qualified Data.GI.Base.GVariant as B.GVariant
    import qualified Data.GI.Base.GValue as B.GValue
    import qualified Data.GI.Base.GParamSpec as B.GParamSpec
    import qualified Data.GI.Base.CallStack as B.CallStack
    import qualified Data.GI.Base.Properties as B.Properties
    import qualified Data.GI.Base.Signals as B.Signals
    import qualified Control.Monad.IO.Class as MIO
    import qualified Data.Coerce as Coerce
    import qualified Data.Text as T
    import qualified Data.Kind as DK
    import qualified Data.ByteString.Char8 as B
    import qualified Data.Map as Map
    import qualified Foreign.Ptr as FP
    import qualified GHC.OverloadedLabels as OL
    import qualified GHC.Records as R
    import qualified Data.Word as DW
    import qualified Data.Int as DI
    import qualified System.Posix.Types as SPT
    import qualified Foreign.C.Types as FCT

    -- Workaround for https://gitlab.haskell.org/ghc/ghc/-/issues/23392
    #if MIN_VERSION_base(4,18,0)
    import qualified GI.Cairo.Enums as Cairo.Enums
    import qualified GI.Cairo.Structs.Context as Cairo.Context
    import qualified GI.Cairo.Structs.FontOptions as Cairo.FontOptions
    import qualified GI.Cairo.Structs.Pattern as Cairo.Pattern
    import qualified GI.Cairo.Structs.Region as Cairo.Region
    import qualified GI.Cairo.Structs.Surface as Cairo.Surface
    import qualified GI.GLib.Callbacks as GLib.Callbacks
    import qualified GI.GObject.Objects.Object as GObject.Object
    import qualified GI.Gdk.Callbacks as Gdk.Callbacks
    import {-# SOURCE #-} qualified GI.Gdk.Enums as Gdk.Enums
    import {-# SOURCE #-} qualified GI.Gdk.Flags as Gdk.Flags
    import {-# SOURCE #-} qualified GI.Gdk.Objects.AppLaunchContext as Gdk.AppLaunchContext
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Cursor as Gdk.Cursor
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Device as Gdk.Device
    import {-# SOURCE #-} qualified GI.Gdk.Objects.DeviceManager as Gdk.DeviceManager
    import {-# SOURCE #-} qualified GI.Gdk.Objects.DeviceTool as Gdk.DeviceTool
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Display as Gdk.Display
    import {-# SOURCE #-} qualified GI.Gdk.Objects.DragContext as Gdk.DragContext
    import {-# SOURCE #-} qualified GI.Gdk.Objects.DrawingContext as Gdk.DrawingContext
    import {-# SOURCE #-} qualified GI.Gdk.Objects.FrameClock as Gdk.FrameClock
    import {-# SOURCE #-} qualified GI.Gdk.Objects.GLContext as Gdk.GLContext
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Monitor as Gdk.Monitor
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Screen as Gdk.Screen
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Seat as Gdk.Seat
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Visual as Gdk.Visual
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Window as Gdk.Window
    import {-# SOURCE #-} qualified GI.Gdk.Structs.Atom as Gdk.Atom
    import {-# SOURCE #-} qualified GI.Gdk.Structs.Color as Gdk.Color
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventAny as Gdk.EventAny
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventButton as Gdk.EventButton
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventConfigure as Gdk.EventConfigure
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventCrossing as Gdk.EventCrossing
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventDND as Gdk.EventDND
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventExpose as Gdk.EventExpose
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventFocus as Gdk.EventFocus
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventGrabBroken as Gdk.EventGrabBroken
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventKey as Gdk.EventKey
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventMotion as Gdk.EventMotion
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventOwnerChange as Gdk.EventOwnerChange
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventPadAxis as Gdk.EventPadAxis
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventPadButton as Gdk.EventPadButton
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventPadGroupMode as Gdk.EventPadGroupMode
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventProperty as Gdk.EventProperty
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventProximity as Gdk.EventProximity
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventScroll as Gdk.EventScroll
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventSelection as Gdk.EventSelection
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventSequence as Gdk.EventSequence
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventSetting as Gdk.EventSetting
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventTouch as Gdk.EventTouch
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventTouchpadPinch as Gdk.EventTouchpadPinch
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventTouchpadSwipe as Gdk.EventTouchpadSwipe
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventVisibility as Gdk.EventVisibility
    import {-# SOURCE #-} qualified GI.Gdk.Structs.EventWindowState as Gdk.EventWindowState
    import {-# SOURCE #-} qualified GI.Gdk.Structs.FrameTimings as Gdk.FrameTimings
    import {-# SOURCE #-} qualified GI.Gdk.Structs.Geometry as Gdk.Geometry
    import {-# SOURCE #-} qualified GI.Gdk.Structs.RGBA as Gdk.RGBA
    import {-# SOURCE #-} qualified GI.Gdk.Structs.Rectangle as Gdk.Rectangle
    import {-# SOURCE #-} qualified GI.Gdk.Structs.WindowAttr as Gdk.WindowAttr
    import {-# SOURCE #-} qualified GI.Gdk.Unions.Event as Gdk.Event
    import qualified GI.GdkPixbuf.Objects.Pixbuf as GdkPixbuf.Pixbuf
    import qualified GI.Gio.Interfaces.Icon as Gio.Icon
    import qualified GI.Gio.Objects.AppLaunchContext as Gio.AppLaunchContext

    #else
    import qualified GI.GObject.Objects.Object as GObject.Object
    import {-# SOURCE #-} qualified GI.Gdk.Objects.Display as Gdk.Display

    #endif

    -- | Memory-managed wrapper type.
    newtype DisplayManager = DisplayManager (SP.ManagedPtr DisplayManager)
        deriving (DisplayManager -> DisplayManager -> Bool
    (DisplayManager -> DisplayManager -> Bool)
    -> (DisplayManager -> DisplayManager -> Bool) -> Eq DisplayManager
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: DisplayManager -> DisplayManager -> Bool
    == :: DisplayManager -> DisplayManager -> Bool
    $c/= :: DisplayManager -> DisplayManager -> Bool
    /= :: DisplayManager -> DisplayManager -> Bool
    Eq)

    instance SP.ManagedPtrNewtype DisplayManager where
        toManagedPtr :: DisplayManager -> ManagedPtr DisplayManager
    toManagedPtr (DisplayManager ManagedPtr DisplayManager
    p) = ManagedPtr DisplayManager
    p

    foreign import ccall "gdk_display_manager_get_type"
        c_gdk_display_manager_get_type :: IO B.Types.GType

    instance B.Types.TypedObject DisplayManager where
        glibType :: IO GType
    glibType = IO GType
    c_gdk_display_manager_get_type

    instance B.Types.GObject DisplayManager

    -- | Type class for types which can be safely cast to t'DisplayManager', for instance with `toDisplayManager`.
    class (SP.GObject o, O.IsDescendantOf DisplayManager o) => IsDisplayManager o
    instance (SP.GObject o, O.IsDescendantOf DisplayManager o) => IsDisplayManager o

    instance O.HasParentTypes DisplayManager
    type instance O.ParentTypes DisplayManager = '[GObject.Object.Object]

    -- | Cast to t'DisplayManager', for types for which this is known to be safe. For general casts, use 'Data.GI.Base.ManagedPtr.castTo'.
    toDisplayManager :: (MIO.MonadIO m, IsDisplayManager o) => o -> m DisplayManager
    toDisplayManager :: forall (m :: * -> *) o.
    (MonadIO m, IsDisplayManager o) =>
    o -> m DisplayManager
    toDisplayManager = IO DisplayManager -> m DisplayManager
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO DisplayManager -> m DisplayManager)
    -> (o -> IO DisplayManager) -> o -> m DisplayManager
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . (ManagedPtr DisplayManager -> DisplayManager)
    -> o -> IO DisplayManager
    forall o o'.
    (HasCallStack, ManagedPtrNewtype o, TypedObject o,
     ManagedPtrNewtype o', TypedObject o') =>
    (ManagedPtr o' -> o') -> o -> IO o'
    B.ManagedPtr.unsafeCastTo ManagedPtr DisplayManager -> DisplayManager
    DisplayManager

    -- | Convert t'DisplayManager' to and from t'Data.GI.Base.GValue.GValue'. See 'Data.GI.Base.GValue.toGValue' and 'Data.GI.Base.GValue.fromGValue'.
    instance B.GValue.IsGValue (Maybe DisplayManager) where
        gvalueGType_ :: IO GType
    gvalueGType_ = IO GType
    c_gdk_display_manager_get_type
        gvalueSet_ :: Ptr GValue -> Maybe DisplayManager -> IO ()
    gvalueSet_ Ptr GValue
    gv Maybe DisplayManager
    P.Nothing = Ptr GValue -> Ptr DisplayManager -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv (Ptr DisplayManager
    forall a. Ptr a
    FP.nullPtr :: FP.Ptr DisplayManager)
        gvalueSet_ Ptr GValue
    gv (P.Just DisplayManager
    obj) = DisplayManager -> (Ptr DisplayManager -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    B.ManagedPtr.withManagedPtr DisplayManager
    obj (Ptr GValue -> Ptr DisplayManager -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv)
        gvalueGet_ :: Ptr GValue -> IO (Maybe DisplayManager)
    gvalueGet_ Ptr GValue
    gv = do
            ptr <- Ptr GValue -> IO (Ptr DisplayManager)
    forall a. GObject a => Ptr GValue -> IO (Ptr a)
    B.GValue.get_object Ptr GValue
    gv :: IO (FP.Ptr DisplayManager)
            if ptr /= FP.nullPtr
            then P.Just <$> B.ManagedPtr.newObject DisplayManager ptr
            else return P.Nothing

    #if defined(ENABLE_OVERLOADING)
    type family ResolveDisplayManagerMethod (t :: Symbol) (o :: DK.Type) :: DK.Type where
        ResolveDisplayManagerMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo
        ResolveDisplayManagerMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo
        ResolveDisplayManagerMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo
        ResolveDisplayManagerMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo
        ResolveDisplayManagerMethod "getv" o = GObject.Object.ObjectGetvMethodInfo
        ResolveDisplayManagerMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo
        ResolveDisplayManagerMethod "listDisplays" o = DisplayManagerListDisplaysMethodInfo
        ResolveDisplayManagerMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo
        ResolveDisplayManagerMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo
        ResolveDisplayManagerMethod "openDisplay" o = DisplayManagerOpenDisplayMethodInfo
        ResolveDisplayManagerMethod "ref" o = GObject.Object.ObjectRefMethodInfo
        ResolveDisplayManagerMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo
        ResolveDisplayManagerMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo
        ResolveDisplayManagerMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo
        ResolveDisplayManagerMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo
        ResolveDisplayManagerMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo
        ResolveDisplayManagerMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo
        ResolveDisplayManagerMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo
        ResolveDisplayManagerMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo
        ResolveDisplayManagerMethod "getDefaultDisplay" o = DisplayManagerGetDefaultDisplayMethodInfo
        ResolveDisplayManagerMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo
        ResolveDisplayManagerMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo
        ResolveDisplayManagerMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo
        ResolveDisplayManagerMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo
        ResolveDisplayManagerMethod "setDefaultDisplay" o = DisplayManagerSetDefaultDisplayMethodInfo
        ResolveDisplayManagerMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo
        ResolveDisplayManagerMethod l o = O.MethodResolutionFailed l o

    instance (info ~ ResolveDisplayManagerMethod t DisplayManager, O.OverloadedMethod info DisplayManager p) => OL.IsLabel t (DisplayManager -> p) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.overloadedMethod @info
    #else
        fromLabel _ = O.overloadedMethod @info
    #endif

    #if MIN_VERSION_base(4,13,0)
    instance (info ~ ResolveDisplayManagerMethod t DisplayManager, O.OverloadedMethod info DisplayManager p, R.HasField t DisplayManager p) => R.HasField t DisplayManager p where
        getField = O.overloadedMethod @info

    #endif

    instance (info ~ ResolveDisplayManagerMethod t DisplayManager, O.OverloadedMethodInfo info DisplayManager) => OL.IsLabel t (O.MethodProxy info DisplayManager) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.MethodProxy
    #else
        fromLabel _ = O.MethodProxy
    #endif

    #endif

    -- signal DisplayManager::display-opened
    -- | The [displayOpened](#g:signal:displayOpened) signal is emitted when a display is opened.
    --
    -- /Since: 2.2/
    type DisplayManagerDisplayOpenedCallback =
        Gdk.Display.Display
        -- ^ /@display@/: the opened display
        -> IO ()

    type C_DisplayManagerDisplayOpenedCallback =
        Ptr DisplayManager ->                   -- object
        Ptr Gdk.Display.Display ->
        Ptr () ->                               -- user_data
        IO ()

    -- | Generate a function pointer callable from C code, from a `C_DisplayManagerDisplayOpenedCallback`.
    foreign import ccall "wrapper"
        mk_DisplayManagerDisplayOpenedCallback :: C_DisplayManagerDisplayOpenedCallback -> IO (FunPtr C_DisplayManagerDisplayOpenedCallback)

    wrap_DisplayManagerDisplayOpenedCallback ::
        GObject a => (a -> DisplayManagerDisplayOpenedCallback) ->
        C_DisplayManagerDisplayOpenedCallback
    wrap_DisplayManagerDisplayOpenedCallback :: forall a.
    GObject a =>
    (a -> DisplayManagerDisplayOpenedCallback)
    -> C_DisplayManagerDisplayOpenedCallback
    wrap_DisplayManagerDisplayOpenedCallback a -> DisplayManagerDisplayOpenedCallback
    gi'cb Ptr DisplayManager
    gi'selfPtr Ptr Display
    display Ptr ()
    _ = do
        display' <- ((ManagedPtr Display -> Display) -> Ptr Display -> IO Display
    forall a b.
    (HasCallStack, GObject a, GObject b) =>
    (ManagedPtr a -> a) -> Ptr b -> IO a
    newObject ManagedPtr Display -> Display
    Gdk.Display.Display) Ptr Display
    display
        B.ManagedPtr.withNewObject gi'selfPtr $ \DisplayManager
    gi'self -> a -> DisplayManagerDisplayOpenedCallback
    gi'cb (DisplayManager -> a
    forall a b. Coercible a b => a -> b
    Coerce.coerce DisplayManager
    gi'self)  Display
    display'

    -- | Connect a signal handler for the [displayOpened](#signal:displayOpened) signal, to be run before the default handler.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Signals.on' displayManager #displayOpened callback
    -- @
    --
    --
    onDisplayManagerDisplayOpened :: (IsDisplayManager a, MonadIO m) => a -> ((?self :: a) => DisplayManagerDisplayOpenedCallback) -> m SignalHandlerId
    onDisplayManagerDisplayOpened :: forall a (m :: * -> *).
    (IsDisplayManager a, MonadIO m) =>
    a
    -> ((?self::a) => DisplayManagerDisplayOpenedCallback)
    -> m SignalHandlerId
    onDisplayManagerDisplayOpened a
    obj (?self::a) => DisplayManagerDisplayOpenedCallback
    cb = IO SignalHandlerId -> m SignalHandlerId
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO SignalHandlerId -> m SignalHandlerId)
    -> IO SignalHandlerId -> m SignalHandlerId
    forall a b. (a -> b) -> a -> b
    $ do
        let wrapped :: a -> DisplayManagerDisplayOpenedCallback
    wrapped a
    self = let ?self = a
    ?self::a
    self in (?self::a) => DisplayManagerDisplayOpenedCallback
    DisplayManagerDisplayOpenedCallback
    cb
        let wrapped' :: C_DisplayManagerDisplayOpenedCallback
    wrapped' = (a -> DisplayManagerDisplayOpenedCallback)
    -> C_DisplayManagerDisplayOpenedCallback
    forall a.
    GObject a =>
    (a -> DisplayManagerDisplayOpenedCallback)
    -> C_DisplayManagerDisplayOpenedCallback
    wrap_DisplayManagerDisplayOpenedCallback a -> DisplayManagerDisplayOpenedCallback
    wrapped
        wrapped'' <- C_DisplayManagerDisplayOpenedCallback
    -> IO (FunPtr C_DisplayManagerDisplayOpenedCallback)
    mk_DisplayManagerDisplayOpenedCallback C_DisplayManagerDisplayOpenedCallback
    wrapped'
        connectSignalFunPtr obj "display-opened" wrapped'' SignalConnectBefore Nothing

    -- | Connect a signal handler for the [displayOpened](#signal:displayOpened) signal, to be run after the default handler.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Signals.after' displayManager #displayOpened callback
    -- @
    --
    --
    --
    -- By default the object invoking the signal is not passed to the callback.
    -- If you need to access it, you can use the implit @?self@ parameter.
    -- Note that this requires activating the @ImplicitParams@ GHC extension.
    --
    afterDisplayManagerDisplayOpened :: (IsDisplayManager a, MonadIO m) => a -> ((?self :: a) => DisplayManagerDisplayOpenedCallback) -> m SignalHandlerId
    afterDisplayManagerDisplayOpened :: forall a (m :: * -> *).
    (IsDisplayManager a, MonadIO m) =>
    a
    -> ((?self::a) => DisplayManagerDisplayOpenedCallback)
    -> m SignalHandlerId
    afterDisplayManagerDisplayOpened a
    obj (?self::a) => DisplayManagerDisplayOpenedCallback
    cb = IO SignalHandlerId -> m SignalHandlerId
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO SignalHandlerId -> m SignalHandlerId)
    -> IO SignalHandlerId -> m SignalHandlerId
    forall a b. (a -> b) -> a -> b
    $ do
        let wrapped :: a -> DisplayManagerDisplayOpenedCallback
    wrapped a
    self = let ?self = a
    ?self::a
    self in (?self::a) => DisplayManagerDisplayOpenedCallback
    DisplayManagerDisplayOpenedCallback
    cb
        let wrapped' :: C_DisplayManagerDisplayOpenedCallback
    wrapped' = (a -> DisplayManagerDisplayOpenedCallback)
    -> C_DisplayManagerDisplayOpenedCallback
    forall a.
    GObject a =>
    (a -> DisplayManagerDisplayOpenedCallback)
    -> C_DisplayManagerDisplayOpenedCallback
    wrap_DisplayManagerDisplayOpenedCallback a -> DisplayManagerDisplayOpenedCallback
    wrapped
        wrapped'' <- C_DisplayManagerDisplayOpenedCallback
    -> IO (FunPtr C_DisplayManagerDisplayOpenedCallback)
    mk_DisplayManagerDisplayOpenedCallback C_DisplayManagerDisplayOpenedCallback
    wrapped'
        connectSignalFunPtr obj "display-opened" wrapped'' SignalConnectAfter Nothing

    #if defined(ENABLE_OVERLOADING)
    data DisplayManagerDisplayOpenedSignalInfo
    instance SignalInfo DisplayManagerDisplayOpenedSignalInfo where
        type HaskellCallbackType DisplayManagerDisplayOpenedSignalInfo = DisplayManagerDisplayOpenedCallback
        connectSignal obj cb connectMode detail = do
            let cb' = wrap_DisplayManagerDisplayOpenedCallback cb
            cb'' <- mk_DisplayManagerDisplayOpenedCallback cb'
            connectSignalFunPtr obj "display-opened" cb'' connectMode detail
        dbgSignalInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gdk.Objects.DisplayManager::display-opened"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gdk-3.0.29/docs/GI-Gdk-Objects-DisplayManager.html#g:signal:displayOpened"})

    #endif

    -- VVV Prop "default-display"
       -- Type: TInterface (Name {namespace = "Gdk", name = "Display"})
       -- Flags: [PropertyReadable,PropertyWritable]
       -- Nullable: (Just True,Just False)

    -- | Get the value of the “@default-display@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.get' displayManager #defaultDisplay
    -- @
    getDisplayManagerDefaultDisplay :: (MonadIO m, IsDisplayManager o) => o -> m (Maybe Gdk.Display.Display)
    getDisplayManagerDefaultDisplay :: forall (m :: * -> *) o.
    (MonadIO m, IsDisplayManager o) =>
    o -> m (Maybe Display)
    getDisplayManagerDefaultDisplay o
    obj = IO (Maybe Display) -> m (Maybe Display)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (Maybe Display) -> m (Maybe Display))
    -> IO (Maybe Display) -> m (Maybe Display)
    forall a b. (a -> b) -> a -> b
    $ o
    -> String -> (ManagedPtr Display -> Display) -> IO (Maybe Display)
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> (ManagedPtr b -> b) -> IO (Maybe b)
    B.Properties.getObjectPropertyObject o
    obj String
    "default-display" ManagedPtr Display -> Display
    Gdk.Display.Display

    -- | Set the value of the “@default-display@” property.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Attributes.set' displayManager [ #defaultDisplay 'Data.GI.Base.Attributes.:=' value ]
    -- @
    setDisplayManagerDefaultDisplay :: (MonadIO m, IsDisplayManager o, Gdk.Display.IsDisplay a) => o -> a -> m ()
    setDisplayManagerDefaultDisplay :: forall (m :: * -> *) o a.
    (MonadIO m, IsDisplayManager o, IsDisplay a) =>
    o -> a -> m ()
    setDisplayManagerDefaultDisplay o
    obj a
    val = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        o -> String -> Maybe a -> IO ()
    forall a b.
    (GObject a, GObject b) =>
    a -> String -> Maybe b -> IO ()
    B.Properties.setObjectPropertyObject o
    obj String
    "default-display" (a -> Maybe a
    forall a. a -> Maybe a
    Just a
    val)

    -- | Construct a t'GValueConstruct' with valid value for the “@default-display@” property. This is rarely needed directly, but it is used by `Data.GI.Base.Constructible.new`.
    constructDisplayManagerDefaultDisplay :: (IsDisplayManager o, MIO.MonadIO m, Gdk.Display.IsDisplay a) => a -> m (GValueConstruct o)
    constructDisplayManagerDefaultDisplay :: forall o (m :: * -> *) a.
    (IsDisplayManager o, MonadIO m, IsDisplay a) =>
    a -> m (GValueConstruct o)
    constructDisplayManagerDefaultDisplay a
    val = IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> m (GValueConstruct o))
    -> IO (GValueConstruct o) -> m (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ do
        IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a. IO a -> IO a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO (GValueConstruct o) -> IO (GValueConstruct o))
    -> IO (GValueConstruct o) -> IO (GValueConstruct o)
    forall a b. (a -> b) -> a -> b
    $ String -> Maybe a -> IO (GValueConstruct o)
    forall a o.
    GObject a =>
    String -> Maybe a -> IO (GValueConstruct o)
    B.Properties.constructObjectPropertyObject String
    "default-display" (a -> Maybe a
    forall a. a -> Maybe a
    P.Just a
    val)

    #if defined(ENABLE_OVERLOADING)
    data DisplayManagerDefaultDisplayPropertyInfo
    instance AttrInfo DisplayManagerDefaultDisplayPropertyInfo where
        type AttrAllowedOps DisplayManagerDefaultDisplayPropertyInfo = '[ 'AttrSet, 'AttrConstruct, 'AttrGet]
        type AttrBaseTypeConstraint DisplayManagerDefaultDisplayPropertyInfo = IsDisplayManager
        type AttrSetTypeConstraint DisplayManagerDefaultDisplayPropertyInfo = Gdk.Display.IsDisplay
        type AttrTransferTypeConstraint DisplayManagerDefaultDisplayPropertyInfo = Gdk.Display.IsDisplay
        type AttrTransferType DisplayManagerDefaultDisplayPropertyInfo = Gdk.Display.Display
        type AttrGetType DisplayManagerDefaultDisplayPropertyInfo = (Maybe Gdk.Display.Display)
        type AttrLabel DisplayManagerDefaultDisplayPropertyInfo = "default-display"
        type AttrOrigin DisplayManagerDefaultDisplayPropertyInfo = DisplayManager
        attrGet = getDisplayManagerDefaultDisplay
        attrSet = setDisplayManagerDefaultDisplay
        attrPut = undefined
        attrTransfer _ v = do
            unsafeCastTo Gdk.Display.Display v
        attrConstruct = constructDisplayManagerDefaultDisplay
        attrClear = undefined
        dbgAttrInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gdk.Objects.DisplayManager.defaultDisplay"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gdk-3.0.29/docs/GI-Gdk-Objects-DisplayManager.html#g:attr:defaultDisplay"
            })
    #endif

    #if defined(ENABLE_OVERLOADING)
    instance O.HasAttributeList DisplayManager
    type instance O.AttributeList DisplayManager = DisplayManagerAttributeList
    type DisplayManagerAttributeList = ('[ '("defaultDisplay", DisplayManagerDefaultDisplayPropertyInfo)] :: [(Symbol, DK.Type)])
    #endif

    #if defined(ENABLE_OVERLOADING)
    displayManagerDefaultDisplay :: AttrLabelProxy "defaultDisplay"
    displayManagerDefaultDisplay = AttrLabelProxy

    #endif

    #if defined(ENABLE_OVERLOADING)
    type instance O.SignalList DisplayManager = DisplayManagerSignalList
    type DisplayManagerSignalList = ('[ '("displayOpened", DisplayManagerDisplayOpenedSignalInfo), '("notify", GObject.Object.ObjectNotifySignalInfo)] :: [(Symbol, DK.Type)])

    #endif

    -- method DisplayManager::get_default_display
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "manager"
    --           , argType =
    --               TInterface Name { namespace = "Gdk" , name = "DisplayManager" }
    --           , argCType = Just "GdkDisplayManager*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GdkDisplayManager"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gdk" , name = "Display" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gdk_display_manager_get_default_display" gdk_display_manager_get_default_display ::
        Ptr DisplayManager ->                   -- manager : TInterface (Name {namespace = "Gdk", name = "DisplayManager"})
        IO (Ptr Gdk.Display.Display)

    -- | Gets the default t'GI.Gdk.Objects.Display.Display'.
    --
    -- /Since: 2.2/
    displayManagerGetDefaultDisplay ::
        (B.CallStack.HasCallStack, MonadIO m, IsDisplayManager a) =>
        a
        -- ^ /@manager@/: a t'GI.Gdk.Objects.DisplayManager.DisplayManager'
        -> m (Maybe Gdk.Display.Display)
        -- ^ __Returns:__ a t'GI.Gdk.Objects.Display.Display', or 'P.Nothing' if
        --     there is no default display.
    displayManagerGetDefaultDisplay :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsDisplayManager a) =>
    a -> m (Maybe Display)
    displayManagerGetDefaultDisplay a
    manager = IO (Maybe Display) -> m (Maybe Display)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Display) -> m (Maybe Display))
    -> IO (Maybe Display) -> m (Maybe Display)
    forall a b. (a -> b) -> a -> b
    $ do
        manager' <- a -> IO (Ptr DisplayManager)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    manager
        result <- gdk_display_manager_get_default_display manager'
        maybeResult <- convertIfNonNull result $ \Ptr Display
    result' -> do
            result'' <- ((ManagedPtr Display -> Display) -> Ptr Display -> IO Display
    forall a b.
    (HasCallStack, GObject a, GObject b) =>
    (ManagedPtr a -> a) -> Ptr b -> IO a
    newObject ManagedPtr Display -> Display
    Gdk.Display.Display) Ptr Display
    result'
            return result''
        touchManagedPtr manager
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data DisplayManagerGetDefaultDisplayMethodInfo
    instance (signature ~ (m (Maybe Gdk.Display.Display)), MonadIO m, IsDisplayManager a) => O.OverloadedMethod DisplayManagerGetDefaultDisplayMethodInfo a signature where
        overloadedMethod = displayManagerGetDefaultDisplay

    instance O.OverloadedMethodInfo DisplayManagerGetDefaultDisplayMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gdk.Objects.DisplayManager.displayManagerGetDefaultDisplay",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gdk-3.0.29/docs/GI-Gdk-Objects-DisplayManager.html#v:displayManagerGetDefaultDisplay"
            })

    #endif

    -- method DisplayManager::list_displays
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "manager"
    --           , argType =
    --               TInterface Name { namespace = "Gdk" , name = "DisplayManager" }
    --           , argCType = Just "GdkDisplayManager*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GdkDisplayManager"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just
    --               (TGSList
    --                  (TInterface Name { namespace = "Gdk" , name = "Display" }))
    -- throws : False
    -- Skip return : False

    foreign import ccall "gdk_display_manager_list_displays" gdk_display_manager_list_displays ::
        Ptr DisplayManager ->                   -- manager : TInterface (Name {namespace = "Gdk", name = "DisplayManager"})
        IO (Ptr (GSList (Ptr Gdk.Display.Display)))

    -- | List all currently open displays.
    --
    -- /Since: 2.2/
    displayManagerListDisplays ::
        (B.CallStack.HasCallStack, MonadIO m, IsDisplayManager a) =>
        a
        -- ^ /@manager@/: a t'GI.Gdk.Objects.DisplayManager.DisplayManager'
        -> m [Gdk.Display.Display]
        -- ^ __Returns:__ a newly
        --     allocated t'GI.GLib.Structs.SList.SList' of t'GI.Gdk.Objects.Display.Display' objects. Free with @/g_slist_free()/@
        --     when you are done with it.
    displayManagerListDisplays :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsDisplayManager a) =>
    a -> m [Display]
    displayManagerListDisplays a
    manager = IO [Display] -> m [Display]
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO [Display] -> m [Display]) -> IO [Display] -> m [Display]
    forall a b. (a -> b) -> a -> b
    $ do
        manager' <- a -> IO (Ptr DisplayManager)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    manager
        result <- gdk_display_manager_list_displays manager'
        result' <- unpackGSList result
        result'' <- mapM (newObject Gdk.Display.Display) result'
        g_slist_free result
        touchManagedPtr manager
        return result''

    #if defined(ENABLE_OVERLOADING)
    data DisplayManagerListDisplaysMethodInfo
    instance (signature ~ (m [Gdk.Display.Display]), MonadIO m, IsDisplayManager a) => O.OverloadedMethod DisplayManagerListDisplaysMethodInfo a signature where
        overloadedMethod = displayManagerListDisplays

    instance O.OverloadedMethodInfo DisplayManagerListDisplaysMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gdk.Objects.DisplayManager.displayManagerListDisplays",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gdk-3.0.29/docs/GI-Gdk-Objects-DisplayManager.html#v:displayManagerListDisplays"
            })

    #endif

    -- method DisplayManager::open_display
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "manager"
    --           , argType =
    --               TInterface Name { namespace = "Gdk" , name = "DisplayManager" }
    --           , argCType = Just "GdkDisplayManager*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GdkDisplayManager"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "name"
    --           , argType = TBasicType TUTF8
    --           , argCType = Just "const gchar*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "the name of the display to open"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gdk" , name = "Display" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gdk_display_manager_open_display" gdk_display_manager_open_display ::
        Ptr DisplayManager ->                   -- manager : TInterface (Name {namespace = "Gdk", name = "DisplayManager"})
        CString ->                              -- name : TBasicType TUTF8
        IO (Ptr Gdk.Display.Display)

    -- | Opens a display.
    --
    -- /Since: 3.0/
    displayManagerOpenDisplay ::
        (B.CallStack.HasCallStack, MonadIO m, IsDisplayManager a) =>
        a
        -- ^ /@manager@/: a t'GI.Gdk.Objects.DisplayManager.DisplayManager'
        -> T.Text
        -- ^ /@name@/: the name of the display to open
        -> m (Maybe Gdk.Display.Display)
        -- ^ __Returns:__ a t'GI.Gdk.Objects.Display.Display', or 'P.Nothing' if the
        --     display could not be opened
    displayManagerOpenDisplay :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsDisplayManager a) =>
    a -> Text -> m (Maybe Display)
    displayManagerOpenDisplay a
    manager Text
    name = IO (Maybe Display) -> m (Maybe Display)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe Display) -> m (Maybe Display))
    -> IO (Maybe Display) -> m (Maybe Display)
    forall a b. (a -> b) -> a -> b
    $ do
        manager' <- a -> IO (Ptr DisplayManager)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    manager
        name' <- textToCString name
        result <- gdk_display_manager_open_display manager' name'
        maybeResult <- convertIfNonNull result $ \Ptr Display
    result' -> do
            result'' <- ((ManagedPtr Display -> Display) -> Ptr Display -> IO Display
    forall a b.
    (HasCallStack, GObject a, GObject b) =>
    (ManagedPtr a -> a) -> Ptr b -> IO a
    newObject ManagedPtr Display -> Display
    Gdk.Display.Display) Ptr Display
    result'
            return result''
        touchManagedPtr manager
        freeMem name'
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data DisplayManagerOpenDisplayMethodInfo
    instance (signature ~ (T.Text -> m (Maybe Gdk.Display.Display)), MonadIO m, IsDisplayManager a) => O.OverloadedMethod DisplayManagerOpenDisplayMethodInfo a signature where
        overloadedMethod = displayManagerOpenDisplay

    instance O.OverloadedMethodInfo DisplayManagerOpenDisplayMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gdk.Objects.DisplayManager.displayManagerOpenDisplay",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gdk-3.0.29/docs/GI-Gdk-Objects-DisplayManager.html#v:displayManagerOpenDisplay"
            })

    #endif

    -- method DisplayManager::set_default_display
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "manager"
    --           , argType =
    --               TInterface Name { namespace = "Gdk" , name = "DisplayManager" }
    --           , argCType = Just "GdkDisplayManager*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GdkDisplayManager"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "display"
    --           , argType =
    --               TInterface Name { namespace = "Gdk" , name = "Display" }
    --           , argCType = Just "GdkDisplay*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GdkDisplay" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "gdk_display_manager_set_default_display" gdk_display_manager_set_default_display ::
        Ptr DisplayManager ->                   -- manager : TInterface (Name {namespace = "Gdk", name = "DisplayManager"})
        Ptr Gdk.Display.Display ->              -- display : TInterface (Name {namespace = "Gdk", name = "Display"})
        IO ()

    -- | Sets /@display@/ as the default display.
    --
    -- /Since: 2.2/
    displayManagerSetDefaultDisplay ::
        (B.CallStack.HasCallStack, MonadIO m, IsDisplayManager a, Gdk.Display.IsDisplay b) =>
        a
        -- ^ /@manager@/: a t'GI.Gdk.Objects.DisplayManager.DisplayManager'
        -> b
        -- ^ /@display@/: a t'GI.Gdk.Objects.Display.Display'
        -> m ()
    displayManagerSetDefaultDisplay :: forall (m :: * -> *) a b.
    (HasCallStack, MonadIO m, IsDisplayManager a, IsDisplay b) =>
    a -> b -> m ()
    displayManagerSetDefaultDisplay a
    manager b
    display = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        manager' <- a -> IO (Ptr DisplayManager)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    manager
        display' <- unsafeManagedPtrCastPtr display
        gdk_display_manager_set_default_display manager' display'
        touchManagedPtr manager
        touchManagedPtr display
        return ()

    #if defined(ENABLE_OVERLOADING)
    data DisplayManagerSetDefaultDisplayMethodInfo
    instance (signature ~ (b -> m ()), MonadIO m, IsDisplayManager a, Gdk.Display.IsDisplay b) => O.OverloadedMethod DisplayManagerSetDefaultDisplayMethodInfo a signature where
        overloadedMethod = displayManagerSetDefaultDisplay

    instance O.OverloadedMethodInfo DisplayManagerSetDefaultDisplayMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gdk.Objects.DisplayManager.displayManagerSetDefaultDisplay",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gdk-3.0.29/docs/GI-Gdk-Objects-DisplayManager.html#v:displayManagerSetDefaultDisplay"
            })

    #endif

    -- method DisplayManager::get
    -- method type : MemberFunction
    -- Args: []
    -- Lengths: []
    -- returnType: Just
    --               (TInterface Name { namespace = "Gdk" , name = "DisplayManager" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gdk_display_manager_get" gdk_display_manager_get ::
        IO (Ptr DisplayManager)

    -- | Gets the singleton t'GI.Gdk.Objects.DisplayManager.DisplayManager' object.
    --
    -- When called for the first time, this function consults the
    -- @GDK_BACKEND@ environment variable to find out which
    -- of the supported GDK backends to use (in case GDK has been compiled
    -- with multiple backends). Applications can use 'GI.Gdk.Functions.setAllowedBackends'
    -- to limit what backends can be used.
    --
    -- /Since: 2.2/
    displayManagerGet ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        m DisplayManager
        -- ^ __Returns:__ The global t'GI.Gdk.Objects.DisplayManager.DisplayManager' singleton;
        --     'GI.Gdk.Functions.parseArgs', 'GI.Gdk.Functions.init', or 'GI.Gdk.Functions.initCheck' must have
        --     been called first.
    displayManagerGet :: forall (m :: * -> *). (HasCallStack, MonadIO m) => m DisplayManager
    displayManagerGet  = IO DisplayManager -> m DisplayManager
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO DisplayManager -> m DisplayManager)
    -> IO DisplayManager -> m DisplayManager
    forall a b. (a -> b) -> a -> b
    $ do
        result <- IO (Ptr DisplayManager)
    gdk_display_manager_get
        checkUnexpectedReturnNULL "displayManagerGet" result
        result' <- (newObject DisplayManager) result
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif