[pygtk] gdk_input_set_mode

[Scott F. Johnston]

While not a complete implementation of xinput services for pygtk,
adding the following wrapper allows a user to enable xinput devices
without
having to open an InputDialog:
 
Add to GDK.py:
 
  CORE_POINTER  = 0xfedc
 
Add to generate/gtk.defs:
 
  (define-func gdk_input_set_mode
    int
    ((uint deviceid) (GdkInputMode mode)))
 
If device 1 is a stylus, and you have extension_events enabled,
you can make the tablet active with:
 
  gtk._gtk.gdk_input_set_mode(1, GDK.MODE_SCREEN)  # or GDK.MODE_WINDOW
 
and turn it off with:
 
  gtk._gtk.gdk_input_set_mode(1, GDK.MODE_DISABLED)

Before a wrapper exists for gdk_input_list_devices(), you can
obtain device information with a system call to "xinput list".