GI.Gdk.Objects.Display

Exported types

newtype Display

Constructors

Display (ManagedPtr Display)

Instances

GObject Display

Methods

gobjectIsInitiallyUnowned :: Display -> Bool

gobjectType :: Display -> IO GType

IsDisplay Display

IsObject Display

((~) * info (ResolveDisplayMethod t Display), MethodInfo * info Display p) => IsLabel t (Display -> p)

Methods

fromLabel :: Proxy# Symbol t -> Display -> p

((~) * info (ResolveDisplayMethod t Display), MethodInfo * info Display p) => IsLabelProxy t (Display -> p)

Methods

fromLabelProxy :: Proxy Symbol t -> Display -> p

HasAttributeList * Display

type SignalList Display

type SignalList Display

type AttributeList Display

type AttributeList Display

class GObject o => IsDisplay o

Instances

(GObject a, UnknownAncestorError Constraint Display a) => IsDisplay a

IsDisplay Display

toDisplay :: IsDisplay o => o -> IO Display

noDisplay :: Maybe Display

Methods

beep

data DisplayBeepMethodInfo

Instances

((~) * signature (m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayBeepMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayBeepMethodInfo a -> signature -> s

displayBeep :: (MonadIO m, IsDisplay a) => a -> m ()

close

data DisplayCloseMethodInfo

Instances

((~) * signature (m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayCloseMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayCloseMethodInfo a -> signature -> s

displayClose :: (MonadIO m, IsDisplay a) => a -> m ()

deviceIsGrabbed

data DisplayDeviceIsGrabbedMethodInfo

Instances

((~) * signature (b -> m Bool), MonadIO m, IsDisplay a, IsDevice b) => MethodInfo * DisplayDeviceIsGrabbedMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayDeviceIsGrabbedMethodInfo a -> signature -> s

displayDeviceIsGrabbed :: (MonadIO m, IsDisplay a, IsDevice b) => a -> b -> m Bool

flush

data DisplayFlushMethodInfo

Instances

((~) * signature (m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayFlushMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayFlushMethodInfo a -> signature -> s

displayFlush :: (MonadIO m, IsDisplay a) => a -> m ()

getAppLaunchContext

data DisplayGetAppLaunchContextMethodInfo

Instances

((~) * signature (m AppLaunchContext), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetAppLaunchContextMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetAppLaunchContextMethodInfo a -> signature -> s

displayGetAppLaunchContext :: (MonadIO m, IsDisplay a) => a -> m AppLaunchContext

getDefault

displayGetDefault :: MonadIO m => m (Maybe Display)

getDefaultCursorSize

data DisplayGetDefaultCursorSizeMethodInfo

Instances

((~) * signature (m Word32), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetDefaultCursorSizeMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetDefaultCursorSizeMethodInfo a -> signature -> s

displayGetDefaultCursorSize :: (MonadIO m, IsDisplay a) => a -> m Word32

getDefaultGroup

data DisplayGetDefaultGroupMethodInfo

Instances

((~) * signature (m Window), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetDefaultGroupMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetDefaultGroupMethodInfo a -> signature -> s

displayGetDefaultGroup :: (MonadIO m, IsDisplay a) => a -> m Window

getDefaultScreen

data DisplayGetDefaultScreenMethodInfo

Instances

((~) * signature (m Screen), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetDefaultScreenMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetDefaultScreenMethodInfo a -> signature -> s

displayGetDefaultScreen :: (MonadIO m, IsDisplay a) => a -> m Screen

getDefaultSeat

data DisplayGetDefaultSeatMethodInfo

Instances

((~) * signature (m Seat), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetDefaultSeatMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetDefaultSeatMethodInfo a -> signature -> s

displayGetDefaultSeat :: (MonadIO m, IsDisplay a) => a -> m Seat

getDeviceManager

data DisplayGetDeviceManagerMethodInfo

Instances

((~) * signature (m (Maybe DeviceManager)), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetDeviceManagerMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetDeviceManagerMethodInfo a -> signature -> s

displayGetDeviceManager :: (MonadIO m, IsDisplay a) => a -> m (Maybe DeviceManager)

Deprecated: (Since version 3.20.)Use gdk_display_get_default_seat() and #GdkSeat operations.

getEvent

data DisplayGetEventMethodInfo

Instances

((~) * signature (m (Maybe Event)), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetEventMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetEventMethodInfo a -> signature -> s

displayGetEvent :: (MonadIO m, IsDisplay a) => a -> m (Maybe Event)

getMaximalCursorSize

data DisplayGetMaximalCursorSizeMethodInfo

Instances

((~) * signature (m (Word32, Word32)), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetMaximalCursorSizeMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetMaximalCursorSizeMethodInfo a -> signature -> s

displayGetMaximalCursorSize :: (MonadIO m, IsDisplay a) => a -> m (Word32, Word32)

getNScreens

data DisplayGetNScreensMethodInfo

Instances

((~) * signature (m Int32), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetNScreensMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetNScreensMethodInfo a -> signature -> s

displayGetNScreens :: (MonadIO m, IsDisplay a) => a -> m Int32

Deprecated: (Since version 3.10)The number of screens is always 1.

getName

data DisplayGetNameMethodInfo

Instances

((~) * signature (m Text), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetNameMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetNameMethodInfo a -> signature -> s

displayGetName :: (MonadIO m, IsDisplay a) => a -> m Text

getPointer

data DisplayGetPointerMethodInfo

Instances

((~) * signature (m (Screen, Int32, Int32, [ModifierType])), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetPointerMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetPointerMethodInfo a -> signature -> s

displayGetPointer :: (MonadIO m, IsDisplay a) => a -> m (Screen, Int32, Int32, [ModifierType])

Deprecated: (Since version 3.0)Use gdk_device_get_position() instead.

getScreen

data DisplayGetScreenMethodInfo

Instances

((~) * signature (Int32 -> m Screen), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetScreenMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetScreenMethodInfo a -> signature -> s

displayGetScreen :: (MonadIO m, IsDisplay a) => a -> Int32 -> m Screen

Deprecated: (Since version 3.20)There is only one screen; use gdk_display_get_default_screen() to get it.

getWindowAtPointer

data DisplayGetWindowAtPointerMethodInfo

Instances

((~) * signature (m (Maybe Window, Int32, Int32)), MonadIO m, IsDisplay a) => MethodInfo * DisplayGetWindowAtPointerMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayGetWindowAtPointerMethodInfo a -> signature -> s

displayGetWindowAtPointer :: (MonadIO m, IsDisplay a) => a -> m (Maybe Window, Int32, Int32)

Deprecated: (Since version 3.0)Use gdk_device_get_window_at_position() instead.

hasPending

data DisplayHasPendingMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplayHasPendingMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayHasPendingMethodInfo a -> signature -> s

displayHasPending :: (MonadIO m, IsDisplay a) => a -> m Bool

isClosed

data DisplayIsClosedMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplayIsClosedMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayIsClosedMethodInfo a -> signature -> s

displayIsClosed :: (MonadIO m, IsDisplay a) => a -> m Bool

keyboardUngrab

data DisplayKeyboardUngrabMethodInfo

Instances

((~) * signature (Word32 -> m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayKeyboardUngrabMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayKeyboardUngrabMethodInfo a -> signature -> s

displayKeyboardUngrab :: (MonadIO m, IsDisplay a) => a -> Word32 -> m ()

Deprecated: (Since version 3.0)Use gdk_device_ungrab(), together with gdk_device_grab() instead.

listDevices

data DisplayListDevicesMethodInfo

Instances

((~) * signature (m [Device]), MonadIO m, IsDisplay a) => MethodInfo * DisplayListDevicesMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayListDevicesMethodInfo a -> signature -> s

displayListDevices :: (MonadIO m, IsDisplay a) => a -> m [Device]

Deprecated: (Since version 3.0)Use gdk_device_manager_list_devices() instead.

listSeats

data DisplayListSeatsMethodInfo

Instances

((~) * signature (m [Seat]), MonadIO m, IsDisplay a) => MethodInfo * DisplayListSeatsMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayListSeatsMethodInfo a -> signature -> s

displayListSeats :: (MonadIO m, IsDisplay a) => a -> m [Seat]

notifyStartupComplete

data DisplayNotifyStartupCompleteMethodInfo

Instances

((~) * signature (Text -> m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayNotifyStartupCompleteMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayNotifyStartupCompleteMethodInfo a -> signature -> s

displayNotifyStartupComplete :: (MonadIO m, IsDisplay a) => a -> Text -> m ()

open

displayOpen :: MonadIO m => Text -> m (Maybe Display)

openDefaultLibgtkOnly

displayOpenDefaultLibgtkOnly :: MonadIO m => m (Maybe Display)

Deprecated: (Since version 3.16)This symbol was never meant to be used outside of GTK+

peekEvent

data DisplayPeekEventMethodInfo

Instances

((~) * signature (m (Maybe Event)), MonadIO m, IsDisplay a) => MethodInfo * DisplayPeekEventMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayPeekEventMethodInfo a -> signature -> s

displayPeekEvent :: (MonadIO m, IsDisplay a) => a -> m (Maybe Event)

pointerIsGrabbed

data DisplayPointerIsGrabbedMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplayPointerIsGrabbedMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayPointerIsGrabbedMethodInfo a -> signature -> s

displayPointerIsGrabbed :: (MonadIO m, IsDisplay a) => a -> m Bool

Deprecated: (Since version 3.0)Use gdk_display_device_is_grabbed() instead.

pointerUngrab

data DisplayPointerUngrabMethodInfo

Instances

((~) * signature (Word32 -> m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayPointerUngrabMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayPointerUngrabMethodInfo a -> signature -> s

displayPointerUngrab :: (MonadIO m, IsDisplay a) => a -> Word32 -> m ()

Deprecated: (Since version 3.0)Use gdk_device_ungrab(), together with gdk_device_grab() instead.

putEvent

data DisplayPutEventMethodInfo

Instances

((~) * signature (Event -> m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplayPutEventMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayPutEventMethodInfo a -> signature -> s

displayPutEvent :: (MonadIO m, IsDisplay a) => a -> Event -> m ()

requestSelectionNotification

data DisplayRequestSelectionNotificationMethodInfo

Instances

((~) * signature (Atom -> m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplayRequestSelectionNotificationMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayRequestSelectionNotificationMethodInfo a -> signature -> s

displayRequestSelectionNotification :: (MonadIO m, IsDisplay a) => a -> Atom -> m Bool

setDoubleClickDistance

data DisplaySetDoubleClickDistanceMethodInfo

Instances

((~) * signature (Word32 -> m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplaySetDoubleClickDistanceMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySetDoubleClickDistanceMethodInfo a -> signature -> s

displaySetDoubleClickDistance :: (MonadIO m, IsDisplay a) => a -> Word32 -> m ()

setDoubleClickTime

data DisplaySetDoubleClickTimeMethodInfo

Instances

((~) * signature (Word32 -> m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplaySetDoubleClickTimeMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySetDoubleClickTimeMethodInfo a -> signature -> s

displaySetDoubleClickTime :: (MonadIO m, IsDisplay a) => a -> Word32 -> m ()

storeClipboard

data DisplayStoreClipboardMethodInfo

Instances

((~) * signature (b -> Word32 -> [Atom] -> m ()), MonadIO m, IsDisplay a, IsWindow b) => MethodInfo * DisplayStoreClipboardMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayStoreClipboardMethodInfo a -> signature -> s

displayStoreClipboard :: (MonadIO m, IsDisplay a, IsWindow b) => a -> b -> Word32 -> [Atom] -> m ()

supportsClipboardPersistence

data DisplaySupportsClipboardPersistenceMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsClipboardPersistenceMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsClipboardPersistenceMethodInfo a -> signature -> s

displaySupportsClipboardPersistence :: (MonadIO m, IsDisplay a) => a -> m Bool

supportsComposite

data DisplaySupportsCompositeMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsCompositeMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsCompositeMethodInfo a -> signature -> s

displaySupportsComposite :: (MonadIO m, IsDisplay a) => a -> m Bool

Deprecated: (Since version 3.16)Compositing is an outdated technology that only ever worked on X11.

supportsCursorAlpha

data DisplaySupportsCursorAlphaMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsCursorAlphaMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsCursorAlphaMethodInfo a -> signature -> s

displaySupportsCursorAlpha :: (MonadIO m, IsDisplay a) => a -> m Bool

supportsCursorColor

data DisplaySupportsCursorColorMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsCursorColorMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsCursorColorMethodInfo a -> signature -> s

displaySupportsCursorColor :: (MonadIO m, IsDisplay a) => a -> m Bool

supportsInputShapes

data DisplaySupportsInputShapesMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsInputShapesMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsInputShapesMethodInfo a -> signature -> s

displaySupportsInputShapes :: (MonadIO m, IsDisplay a) => a -> m Bool

supportsSelectionNotification

data DisplaySupportsSelectionNotificationMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsSelectionNotificationMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsSelectionNotificationMethodInfo a -> signature -> s

displaySupportsSelectionNotification :: (MonadIO m, IsDisplay a) => a -> m Bool

supportsShapes

data DisplaySupportsShapesMethodInfo

Instances

((~) * signature (m Bool), MonadIO m, IsDisplay a) => MethodInfo * DisplaySupportsShapesMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySupportsShapesMethodInfo a -> signature -> s

displaySupportsShapes :: (MonadIO m, IsDisplay a) => a -> m Bool

sync

data DisplaySyncMethodInfo

Instances

((~) * signature (m ()), MonadIO m, IsDisplay a) => MethodInfo * DisplaySyncMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplaySyncMethodInfo a -> signature -> s

displaySync :: (MonadIO m, IsDisplay a) => a -> m ()

warpPointer

data DisplayWarpPointerMethodInfo

Instances

((~) * signature (b -> Int32 -> Int32 -> m ()), MonadIO m, IsDisplay a, IsScreen b) => MethodInfo * DisplayWarpPointerMethodInfo a signature

Methods

overloadedMethod :: MethodProxy DisplayWarpPointerMethodInfo a -> signature -> s

displayWarpPointer :: (MonadIO m, IsDisplay a, IsScreen b) => a -> b -> Int32 -> Int32 -> m ()

Deprecated: (Since version 3.0)Use gdk_device_warp() instead.

Signals

closed

type C_DisplayClosedCallback = Ptr () -> CInt -> Ptr () -> IO ()

type DisplayClosedCallback = Bool -> IO ()

data DisplayClosedSignalInfo

Instances

SignalInfo DisplayClosedSignalInfo

Associated Types

type HaskellCallbackType DisplayClosedSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o DisplayClosedSignalInfo -> o -> HaskellCallbackType DisplayClosedSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType DisplayClosedSignalInfo

type HaskellCallbackType DisplayClosedSignalInfo = DisplayClosedCallback

afterDisplayClosed :: (GObject a, MonadIO m) => a -> DisplayClosedCallback -> m SignalHandlerId

genClosure_DisplayClosed :: DisplayClosedCallback -> IO Closure

mk_DisplayClosedCallback :: C_DisplayClosedCallback -> IO (FunPtr C_DisplayClosedCallback)

noDisplayClosedCallback :: Maybe DisplayClosedCallback

onDisplayClosed :: (GObject a, MonadIO m) => a -> DisplayClosedCallback -> m SignalHandlerId

wrap_DisplayClosedCallback :: DisplayClosedCallback -> Ptr () -> CInt -> Ptr () -> IO ()

opened

type C_DisplayOpenedCallback = Ptr () -> Ptr () -> IO ()

type DisplayOpenedCallback = IO ()

data DisplayOpenedSignalInfo

Instances

SignalInfo DisplayOpenedSignalInfo

Associated Types

type HaskellCallbackType DisplayOpenedSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o DisplayOpenedSignalInfo -> o -> HaskellCallbackType DisplayOpenedSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType DisplayOpenedSignalInfo

type HaskellCallbackType DisplayOpenedSignalInfo = DisplayOpenedCallback

afterDisplayOpened :: (GObject a, MonadIO m) => a -> DisplayOpenedCallback -> m SignalHandlerId

genClosure_DisplayOpened :: DisplayOpenedCallback -> IO Closure

mk_DisplayOpenedCallback :: C_DisplayOpenedCallback -> IO (FunPtr C_DisplayOpenedCallback)

noDisplayOpenedCallback :: Maybe DisplayOpenedCallback

onDisplayOpened :: (GObject a, MonadIO m) => a -> DisplayOpenedCallback -> m SignalHandlerId

wrap_DisplayOpenedCallback :: DisplayOpenedCallback -> Ptr () -> Ptr () -> IO ()

seatAdded

type C_DisplaySeatAddedCallback = Ptr () -> Ptr Seat -> Ptr () -> IO ()

type DisplaySeatAddedCallback = Seat -> IO ()

data DisplaySeatAddedSignalInfo

Instances

SignalInfo DisplaySeatAddedSignalInfo

Associated Types

type HaskellCallbackType DisplaySeatAddedSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o DisplaySeatAddedSignalInfo -> o -> HaskellCallbackType DisplaySeatAddedSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType DisplaySeatAddedSignalInfo

type HaskellCallbackType DisplaySeatAddedSignalInfo = DisplaySeatAddedCallback

afterDisplaySeatAdded :: (GObject a, MonadIO m) => a -> DisplaySeatAddedCallback -> m SignalHandlerId

genClosure_DisplaySeatAdded :: DisplaySeatAddedCallback -> IO Closure

mk_DisplaySeatAddedCallback :: C_DisplaySeatAddedCallback -> IO (FunPtr C_DisplaySeatAddedCallback)

noDisplaySeatAddedCallback :: Maybe DisplaySeatAddedCallback

onDisplaySeatAdded :: (GObject a, MonadIO m) => a -> DisplaySeatAddedCallback -> m SignalHandlerId

wrap_DisplaySeatAddedCallback :: DisplaySeatAddedCallback -> Ptr () -> Ptr Seat -> Ptr () -> IO ()

seatRemoved

type C_DisplaySeatRemovedCallback = Ptr () -> Ptr Seat -> Ptr () -> IO ()

type DisplaySeatRemovedCallback = Seat -> IO ()

data DisplaySeatRemovedSignalInfo

Instances

SignalInfo DisplaySeatRemovedSignalInfo

Associated Types

type HaskellCallbackType DisplaySeatRemovedSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o DisplaySeatRemovedSignalInfo -> o -> HaskellCallbackType DisplaySeatRemovedSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType DisplaySeatRemovedSignalInfo

type HaskellCallbackType DisplaySeatRemovedSignalInfo = DisplaySeatRemovedCallback

afterDisplaySeatRemoved :: (GObject a, MonadIO m) => a -> DisplaySeatRemovedCallback -> m SignalHandlerId

genClosure_DisplaySeatRemoved :: DisplaySeatRemovedCallback -> IO Closure

mk_DisplaySeatRemovedCallback :: C_DisplaySeatRemovedCallback -> IO (FunPtr C_DisplaySeatRemovedCallback)

noDisplaySeatRemovedCallback :: Maybe DisplaySeatRemovedCallback

onDisplaySeatRemoved :: (GObject a, MonadIO m) => a -> DisplaySeatRemovedCallback -> m SignalHandlerId

wrap_DisplaySeatRemovedCallback :: DisplaySeatRemovedCallback -> Ptr () -> Ptr Seat -> Ptr () -> IO ()