| Safe Haskell | None |
|---|
Graphics.X11.XInput.Functions
Description
This module contains some higher-level functions, - wrapping XInput calls. #
- xinputInit :: Display -> IO XInputInitResult
- xinputCheckVersion :: Display -> IO (Maybe (Int, Int))
- handleXCookie :: MonadIO m => Display -> Opcode -> XEventPtr -> (Event -> m a) -> (EventCookie -> m a) -> m a
- eventButton :: Event -> Maybe Int
- eventWindow :: Event -> Maybe Window
- eventKeyMask :: Event -> Maybe KeyMask
- eventMousePos :: Event -> Maybe (Position, Position)
Documentation
xinputInit :: Display -> IO XInputInitResultSource
Initialize XInput 2.0 extension.
xinputCheckVersion :: Display -> IO (Maybe (Int, Int))Source
Returns Nothing if XInput 2.0 is supported, or Just (major, minor) if another version is supported
Arguments
| :: MonadIO m | |
| => Display | |
| -> Opcode | Extension identifier (one got from xinputInit) |
| -> XEventPtr | Pointer to X11 event |
| -> (Event -> m a) | Handler for usual X11 event |
| -> (EventCookie -> m a) | Handler for X11 cookie event |
| -> m a |
Handle usual X11 event or cookie event.
eventButton :: Event -> Maybe IntSource
Shortcut to get button number or keycode from keyboard or mouse event. Returns Nothing if this is not mouse or keyboard event.
eventWindow :: Event -> Maybe WindowSource
Shortcut to get event window. Returns Nothing if this is not pointer-related event
eventKeyMask :: Event -> Maybe KeyMaskSource
Shortcut to get keymask from event