Graphics.X11.XInput.Functions

This module contains some higher-level functions, - wrapping XInput calls. #

Documentation

xinputInit :: Display -> IO XInputInitResult

Initialize XInput 2.0 extension.

xinputCheckVersion :: Display -> IO (Maybe (Int, Int))

Returns Nothing if XInput 2.0 is supported, or Just (major, minor) if another version is supported

handleXCookie

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 Int

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 Window

Shortcut to get event window. Returns Nothing if this is not pointer-related event

eventKeyMask :: Event -> Maybe KeyMask

Shortcut to get keymask from event

eventMousePos :: Event -> Maybe (Position, Position)

Shortcut to get pointer position from event