public static extern TInt XIUngrabFocusIn( IntPtr display, TInt deviceid, IntPtr grab_window, TInt num_modifiers, ref XIGrabModifiers modifiers );
public static extern TInt XIUngrabKeycode( IntPtr display, TInt deviceid, TInt keycode, IntPtr grab_window, TInt num_modifiers, ref XIGrabModifiers modifiers );
public static extern TInt XIGrabFocusIn( IntPtr display, TInt deviceid, IntPtr grab_window, TInt grab_mode, TInt paired_device_mode, TInt owner_events, ref XIEventMask mask, TInt num_modifiers, ref XIGrabModifiers modifiers_inout );