+void _gdk_display_add_touch_grab (GdkDisplay *display,
+ GdkDevice *device,
+ GdkEventSequence *sequence,
+ GdkWindow *window,
+ GdkWindow *native_window,
+ GdkEventMask event_mask,
+ unsigned long serial_start,
+ guint32 time);
+GdkTouchGrabInfo * _gdk_display_has_touch_grab (GdkDisplay *display,
+ GdkDevice *device,
+ GdkEventSequence *sequence,
+ gulong serial);
+gboolean _gdk_display_end_touch_grab (GdkDisplay *display,
+ GdkDevice *device,
+ GdkEventSequence *sequence);