Copyright | 2007 (c) Spencer Janssen |
---|---|
License | BSD3-style (see LICENSE) |
Stability | experimental |
Safe Haskell | None |
Language | Haskell98 |
Graphics.X11.Xlib.Extras
Description
Synopsis
- data Event
- = AnyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- | ConfigureRequestEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_parent :: !Window
- ev_window :: !Window
- ev_x :: !CInt
- ev_y :: !CInt
- ev_width :: !CInt
- ev_height :: !CInt
- ev_border_width :: !CInt
- ev_above :: !Window
- ev_detail :: !NotifyDetail
- ev_value_mask :: !CULong
- | ConfigureEvent { }
- | MapRequestEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_parent :: !Window
- ev_window :: !Window
- | KeyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_subwindow :: !Window
- ev_time :: !Time
- ev_x :: !CInt
- ev_y :: !CInt
- ev_x_root :: !CInt
- ev_y_root :: !CInt
- ev_state :: !KeyMask
- ev_keycode :: !KeyCode
- ev_same_screen :: !Bool
- | ButtonEvent { }
- | MotionEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_x :: !CInt
- ev_y :: !CInt
- ev_window :: !Window
- | DestroyWindowEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_event :: !Window
- ev_window :: !Window
- | UnmapEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_event :: !Window
- ev_window :: !Window
- ev_from_configure :: !Bool
- | MapNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_event :: !Window
- ev_window :: !Window
- ev_override_redirect :: !Bool
- | MappingNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_request :: !MappingRequest
- ev_first_keycode :: !KeyCode
- ev_count :: !CInt
- | CrossingEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_subwindow :: !Window
- ev_time :: !Time
- ev_x :: !CInt
- ev_y :: !CInt
- ev_x_root :: !CInt
- ev_y_root :: !CInt
- ev_mode :: !NotifyMode
- ev_detail :: !NotifyDetail
- ev_same_screen :: !Bool
- ev_focus :: !Bool
- ev_state :: !Modifier
- | SelectionRequest {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_owner :: !Window
- ev_requestor :: !Window
- ev_selection :: !Atom
- ev_target :: !Atom
- ev_property :: !Atom
- ev_time :: !Time
- | SelectionClear {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_selection :: !Atom
- ev_time :: !Time
- | PropertyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_atom :: !Atom
- ev_time :: !Time
- ev_propstate :: !CInt
- | ExposeEvent { }
- | FocusChangeEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_mode :: !NotifyMode
- ev_detail :: !NotifyDetail
- | ClientMessageEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_message_type :: !Atom
- ev_data :: ![CInt]
- | RRScreenChangeNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_timestamp :: !Time
- ev_config_timestamp :: !Time
- ev_size_index :: !SizeID
- ev_subpixel_order :: !SubpixelOrder
- ev_rotation :: !Rotation
- ev_width :: !CInt
- ev_height :: !CInt
- ev_mwidth :: !CInt
- ev_mheight :: !CInt
- | RRNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- | RRCrtcChangeNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- ev_crtc :: !RRCrtc
- ev_rr_mode :: !RRMode
- ev_rotation :: !Rotation
- ev_x :: !CInt
- ev_y :: !CInt
- ev_rr_width :: !CUInt
- ev_rr_height :: !CUInt
- | RROutputChangeNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- ev_output :: !RROutput
- ev_crtc :: !RRCrtc
- ev_rr_mode :: !RRMode
- ev_rotation :: !Rotation
- ev_connection :: !Connection
- ev_subpixel_order :: !SubpixelOrder
- | RROutputPropertyNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_subtype :: !CInt
- ev_output :: !RROutput
- ev_property :: !Atom
- ev_timestamp :: !Time
- ev_rr_state :: !CInt
- | ScreenSaverNotifyEvent {
- ev_event_type :: !EventType
- ev_serial :: !CULong
- ev_send_event :: !Bool
- ev_event_display :: Display
- ev_window :: !Window
- ev_root :: !Window
- ev_ss_state :: !XScreenSaverState
- ev_ss_kind :: !XScreenSaverKind
- ev_forced :: !Bool
- ev_time :: !Time
- = AnyEvent {
- data WindowAttributes = WindowAttributes {}
- getWindowAttributes :: Display -> Window -> IO WindowAttributes
- refreshKeyboardMapping :: Event -> IO ()
- xRefreshKeyboardMapping :: Ptr () -> IO CInt
- xSetErrorHandler :: IO ()
- eventTable :: [(EventType, String)]
- eventName :: Event -> String
- getEvent :: XEventPtr -> IO Event
- data WindowChanges = WindowChanges {
- wc_x :: CInt
- wc_y :: CInt
- wc_width :: CInt
- wc_height :: CInt
- wc_border_width :: CInt
- wc_sibling :: Window
- wc_stack_mode :: CInt
- none :: XID
- anyButton :: Button
- anyKey :: KeyCode
- currentTime :: Time
- xConfigureWindow :: Display -> Window -> CULong -> Ptr WindowChanges -> IO CInt
- killClient :: Display -> Window -> IO CInt
- configureWindow :: Display -> Window -> CULong -> WindowChanges -> IO ()
- xQueryTree :: Display -> Window -> Ptr Window -> Ptr Window -> Ptr (Ptr Window) -> Ptr CInt -> IO Status
- queryTree :: Display -> Window -> IO (Window, Window, [Window])
- waIsUnmapped :: CInt
- waIsUnviewable :: CInt
- waIsViewable :: CInt
- xGetWindowAttributes :: Display -> Window -> Ptr WindowAttributes -> IO Status
- changeWindowAttributes :: Display -> Window -> AttributeMask -> Ptr SetWindowAttributes -> IO ()
- withServer :: Display -> IO () -> IO ()
- data TextProperty = TextProperty {}
- xGetTextProperty :: Display -> Window -> Ptr TextProperty -> Atom -> IO Status
- getTextProperty :: Display -> Window -> Atom -> IO TextProperty
- xwcTextPropertyToTextList :: Display -> Ptr TextProperty -> Ptr (Ptr CWString) -> Ptr CInt -> IO CInt
- wcTextPropertyToTextList :: Display -> TextProperty -> IO [String]
- wcFreeStringList :: Ptr CWString -> IO ()
- newtype FontSet = FontSet (Ptr FontSet)
- xCreateFontSet :: Display -> CString -> Ptr (Ptr CString) -> Ptr CInt -> Ptr CString -> IO (Ptr FontSet)
- createFontSet :: Display -> String -> IO ([String], String, FontSet)
- freeStringList :: Ptr CString -> IO ()
- freeFontSet :: Display -> FontSet -> IO ()
- xwcTextExtents :: FontSet -> CWString -> CInt -> Ptr Rectangle -> Ptr Rectangle -> IO CInt
- wcTextExtents :: FontSet -> String -> (Rectangle, Rectangle)
- xwcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO ()
- wcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO ()
- xwcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO ()
- wcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO ()
- xwcTextEscapement :: FontSet -> CWString -> CInt -> IO Int32
- wcTextEscapement :: FontSet -> String -> Int32
- xFetchName :: Display -> Window -> Ptr CString -> IO Status
- fetchName :: Display -> Window -> IO (Maybe String)
- xGetTransientForHint :: Display -> Window -> Ptr Window -> IO Status
- getTransientForHint :: Display -> Window -> IO (Maybe Window)
- getWMProtocols :: Display -> Window -> IO [Atom]
- xGetWMProtocols :: Display -> Window -> Ptr (Ptr Atom) -> Ptr CInt -> IO Status
- setEventType :: XEventPtr -> EventType -> IO ()
- setSelectionNotify :: XEventPtr -> Window -> Atom -> Atom -> Atom -> Time -> IO ()
- setClientMessageEvent :: XEventPtr -> Window -> Atom -> CInt -> Atom -> Time -> IO ()
- setClientMessageEvent' :: XEventPtr -> Window -> Atom -> CInt -> [CInt] -> IO ()
- setConfigureEvent :: XEventPtr -> Window -> Window -> CInt -> CInt -> CInt -> CInt -> CInt -> Window -> Bool -> IO ()
- setKeyEvent :: XEventPtr -> Window -> Window -> Window -> KeyMask -> KeyCode -> Bool -> IO ()
- anyPropertyType :: Atom
- xChangeProperty :: Display -> Window -> Atom -> Atom -> CInt -> CInt -> Ptr CUChar -> CInt -> IO Status
- xDeleteProperty :: Display -> Window -> Atom -> IO Status
- xGetWindowProperty :: Display -> Window -> Atom -> CLong -> CLong -> Bool -> Atom -> Ptr Atom -> Ptr CInt -> Ptr CULong -> Ptr CULong -> Ptr (Ptr CUChar) -> IO Status
- rawGetWindowProperty :: Storable a => Int -> Display -> Atom -> Window -> IO (Maybe [a])
- getWindowProperty8 :: Display -> Atom -> Window -> IO (Maybe [CChar])
- getWindowProperty16 :: Display -> Atom -> Window -> IO (Maybe [CShort])
- getWindowProperty32 :: Display -> Atom -> Window -> IO (Maybe [CLong])
- changeProperty8 :: Display -> Window -> Atom -> Atom -> CInt -> [CChar] -> IO ()
- changeProperty16 :: Display -> Window -> Atom -> Atom -> CInt -> [CShort] -> IO ()
- changeProperty32 :: Display -> Window -> Atom -> Atom -> CInt -> [CLong] -> IO ()
- propModeReplace :: CInt
- propModePrepend :: CInt
- propModeAppend :: CInt
- deleteProperty :: Display -> Window -> Atom -> IO ()
- xUnmapWindow :: Display -> Window -> IO CInt
- unmapWindow :: Display -> Window -> IO ()
- data SizeHints = SizeHints {
- sh_min_size :: Maybe (Dimension, Dimension)
- sh_max_size :: Maybe (Dimension, Dimension)
- sh_resize_inc :: Maybe (Dimension, Dimension)
- sh_aspect :: Maybe ((Dimension, Dimension), (Dimension, Dimension))
- sh_base_size :: Maybe (Dimension, Dimension)
- sh_win_gravity :: Maybe BitGravity
- pMinSizeBit :: Int
- pMaxSizeBit :: Int
- pResizeIncBit :: Int
- pAspectBit :: Int
- pBaseSizeBit :: Int
- pWinGravityBit :: Int
- xGetWMNormalHints :: Display -> Window -> Ptr SizeHints -> Ptr CLong -> IO Status
- getWMNormalHints :: Display -> Window -> IO SizeHints
- xAllocSizeHints :: IO (Ptr SizeHints)
- xSetWMNormalHints :: Display -> Window -> Ptr SizeHints -> IO ()
- setWMNormalHints :: Display -> Window -> SizeHints -> IO ()
- data ClassHint = ClassHint {}
- getClassHint :: Display -> Window -> IO ClassHint
- xGetClassHint :: Display -> Window -> Ptr ClassHint -> IO Status
- setClassHint :: Display -> Window -> ClassHint -> IO ()
- xSetClassHint :: Display -> Window -> Ptr ClassHint -> IO ()
- withdrawnState :: Int
- normalState :: Int
- iconicState :: Int
- inputHintBit :: Int
- stateHintBit :: Int
- iconPixmapHintBit :: Int
- iconWindowHintBit :: Int
- iconPositionHintBit :: Int
- iconMaskHintBit :: Int
- windowGroupHintBit :: Int
- urgencyHintBit :: Int
- allHintsBitmask :: CLong
- data WMHints = WMHints {}
- xGetWMHints :: Display -> Window -> IO (Ptr WMHints)
- getWMHints :: Display -> Window -> IO WMHints
- xAllocWMHints :: IO (Ptr WMHints)
- xSetWMHints :: Display -> Window -> Ptr WMHints -> IO Status
- setWMHints :: Display -> Window -> WMHints -> IO Status
- isCursorKey :: KeySym -> Bool
- isFunctionKey :: KeySym -> Bool
- isKeypadKey :: KeySym -> Bool
- isMiscFunctionKey :: KeySym -> Bool
- isModifierKey :: KeySym -> Bool
- isPFKey :: KeySym -> Bool
- isPrivateKeypadKey :: KeySym -> Bool
- xSetSelectionOwner :: Display -> Atom -> Window -> Time -> IO ()
- xGetSelectionOwner :: Display -> Atom -> IO Window
- xConvertSelection :: Display -> Atom -> Atom -> Atom -> Window -> Time -> IO ()
- type XErrorEventPtr = Ptr ()
- type CXErrorHandler = Display -> XErrorEventPtr -> IO CInt
- type XErrorHandler = Display -> XErrorEventPtr -> IO ()
- data ErrorEvent = ErrorEvent {
- ev_type :: !CInt
- ev_display :: Display
- ev_serialnum :: !CULong
- ev_error_code :: !CUChar
- ev_request_code :: !CUChar
- ev_minor_code :: !CUChar
- ev_resourceid :: !XID
- mkXErrorHandler :: CXErrorHandler -> IO (FunPtr CXErrorHandler)
- getXErrorHandler :: FunPtr CXErrorHandler -> CXErrorHandler
- _xSetErrorHandler :: FunPtr CXErrorHandler -> IO (FunPtr CXErrorHandler)
- setErrorHandler :: XErrorHandler -> IO ()
- getErrorEvent :: XErrorEventPtr -> IO ErrorEvent
- mapRaised :: Display -> Window -> IO CInt
- xGetCommand :: Display -> Window -> Ptr (Ptr CWString) -> Ptr CInt -> IO Status
- getCommand :: Display -> Window -> IO [String]
- xGetModifierMapping :: Display -> IO (Ptr ())
- xFreeModifiermap :: Ptr () -> IO (Ptr CInt)
- getModifierMapping :: Display -> IO [(Modifier, [KeyCode])]
- xFree :: Ptr a -> IO CInt
Documentation
Constructors
data WindowAttributes #
Constructors
WindowAttributes | |
Fields
|
Instances
Storable WindowAttributes # | |
Defined in Graphics.X11.Xlib.Extras Methods sizeOf :: WindowAttributes -> Int # alignment :: WindowAttributes -> Int # peekElemOff :: Ptr WindowAttributes -> Int -> IO WindowAttributes # pokeElemOff :: Ptr WindowAttributes -> Int -> WindowAttributes -> IO () # peekByteOff :: Ptr b -> Int -> IO WindowAttributes # pokeByteOff :: Ptr b -> Int -> WindowAttributes -> IO () # peek :: Ptr WindowAttributes -> IO WindowAttributes # poke :: Ptr WindowAttributes -> WindowAttributes -> IO () # |
getWindowAttributes :: Display -> Window -> IO WindowAttributes #
refreshKeyboardMapping :: Event -> IO () #
refreshKeyboardMapping. TODO Remove this binding when the fix has been commited to X11
xRefreshKeyboardMapping :: Ptr () -> IO CInt #
xSetErrorHandler :: IO () #
eventTable :: [(EventType, String)] #
data WindowChanges #
Constructors
WindowChanges | |
Fields
|
Instances
Storable WindowChanges # | |
Defined in Graphics.X11.Xlib.Extras Methods sizeOf :: WindowChanges -> Int # alignment :: WindowChanges -> Int # peekElemOff :: Ptr WindowChanges -> Int -> IO WindowChanges # pokeElemOff :: Ptr WindowChanges -> Int -> WindowChanges -> IO () # peekByteOff :: Ptr b -> Int -> IO WindowChanges # pokeByteOff :: Ptr b -> Int -> WindowChanges -> IO () # peek :: Ptr WindowChanges -> IO WindowChanges # poke :: Ptr WindowChanges -> WindowChanges -> IO () # |
currentTime :: Time #
xConfigureWindow :: Display -> Window -> CULong -> Ptr WindowChanges -> IO CInt #
configureWindow :: Display -> Window -> CULong -> WindowChanges -> IO () #
xQueryTree :: Display -> Window -> Ptr Window -> Ptr Window -> Ptr (Ptr Window) -> Ptr CInt -> IO Status #
waIsUnmapped :: CInt #
waIsUnviewable :: CInt #
waIsViewable :: CInt #
xGetWindowAttributes :: Display -> Window -> Ptr WindowAttributes -> IO Status #
changeWindowAttributes :: Display -> Window -> AttributeMask -> Ptr SetWindowAttributes -> IO () #
interface to the X11 library function XChangeWindowAttributes()
.
withServer :: Display -> IO () -> IO () #
Run an action with the server
data TextProperty #
Constructors
TextProperty | |
Instances
Storable TextProperty # | |
Defined in Graphics.X11.Xlib.Extras Methods sizeOf :: TextProperty -> Int # alignment :: TextProperty -> Int # peekElemOff :: Ptr TextProperty -> Int -> IO TextProperty # pokeElemOff :: Ptr TextProperty -> Int -> TextProperty -> IO () # peekByteOff :: Ptr b -> Int -> IO TextProperty # pokeByteOff :: Ptr b -> Int -> TextProperty -> IO () # peek :: Ptr TextProperty -> IO TextProperty # poke :: Ptr TextProperty -> TextProperty -> IO () # |
xGetTextProperty :: Display -> Window -> Ptr TextProperty -> Atom -> IO Status #
getTextProperty :: Display -> Window -> Atom -> IO TextProperty #
xwcTextPropertyToTextList :: Display -> Ptr TextProperty -> Ptr (Ptr CWString) -> Ptr CInt -> IO CInt #
wcTextPropertyToTextList :: Display -> TextProperty -> IO [String] #
wcFreeStringList :: Ptr CWString -> IO () #
xCreateFontSet :: Display -> CString -> Ptr (Ptr CString) -> Ptr CInt -> Ptr CString -> IO (Ptr FontSet) #
freeStringList :: Ptr CString -> IO () #
freeFontSet :: Display -> FontSet -> IO () #
xwcDrawString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO () #
xwcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> CWString -> CInt -> IO () #
wcDrawImageString :: Display -> Drawable -> FontSet -> GC -> Position -> Position -> String -> IO () #
wcTextEscapement :: FontSet -> String -> Int32 #
getWMProtocols :: Display -> Window -> IO [Atom] #
The XGetWMProtocols function returns the list of atoms stored in the WM_PROTOCOLS property on the specified window. These atoms describe window manager protocols in which the owner of this window is willing to participate. If the property exists, is of type ATOM, is of format 32, and the atom WM_PROTOCOLS can be interned, XGetWMProtocols sets the protocols_return argument to a list of atoms, sets the count_return argument to the number of elements in the list, and returns a nonzero status. Otherwise, it sets neither of the return arguments and returns a zero status. To release the list of atoms, use XFree.
setEventType :: XEventPtr -> EventType -> IO () #
setConfigureEvent :: XEventPtr -> Window -> Window -> CInt -> CInt -> CInt -> CInt -> CInt -> Window -> Bool -> IO () #
anyPropertyType :: Atom #
xChangeProperty :: Display -> Window -> Atom -> Atom -> CInt -> CInt -> Ptr CUChar -> CInt -> IO Status #
xGetWindowProperty :: Display -> Window -> Atom -> CLong -> CLong -> Bool -> Atom -> Ptr Atom -> Ptr CInt -> Ptr CULong -> Ptr CULong -> Ptr (Ptr CUChar) -> IO Status #
propModeReplace :: CInt #
propModePrepend :: CInt #
propModeAppend :: CInt #
unmapWindow :: Display -> Window -> IO () #
Constructors
SizeHints | |
Fields
|
Instances
Storable SizeHints # | |
Defined in Graphics.X11.Xlib.Extras |
pMinSizeBit :: Int #
pMaxSizeBit :: Int #
pResizeIncBit :: Int #
pAspectBit :: Int #
pBaseSizeBit :: Int #
pWinGravityBit :: Int #
xAllocSizeHints :: IO (Ptr SizeHints) #
setClassHint :: Display -> Window -> ClassHint -> IO () #
Set the WM_CLASS
property for the given window.
withdrawnState :: Int #
normalState :: Int #
iconicState :: Int #
inputHintBit :: Int #
stateHintBit :: Int #
iconMaskHintBit :: Int #
urgencyHintBit :: Int #
Constructors
WMHints | |
Fields
|
Instances
xAllocWMHints :: IO (Ptr WMHints) #
isCursorKey :: KeySym -> Bool #
isFunctionKey :: KeySym -> Bool #
isKeypadKey :: KeySym -> Bool #
isMiscFunctionKey :: KeySym -> Bool #
isModifierKey :: KeySym -> Bool #
isPrivateKeypadKey :: KeySym -> Bool #
type XErrorEventPtr = Ptr () #
type CXErrorHandler = Display -> XErrorEventPtr -> IO CInt #
type XErrorHandler = Display -> XErrorEventPtr -> IO () #
data ErrorEvent #
Constructors
ErrorEvent | |
Fields
|
mkXErrorHandler :: CXErrorHandler -> IO (FunPtr CXErrorHandler) #
setErrorHandler :: XErrorHandler -> IO () #
A binding to XSetErrorHandler. NOTE: This is pretty experimental because of safe vs. unsafe calls. I changed sync to a safe call, but there *might* be other calls that cause a problem
getErrorEvent :: XErrorEventPtr -> IO ErrorEvent #
Retrieves error event data from a pointer to an XErrorEvent and puts it into an ErrorEvent.
xGetModifierMapping :: Display -> IO (Ptr ()) #