void _gdk_screen_close (GdkScreen *screen);
-const char *_gdk_get_sm_client_id (void);
-
/*****************************************
* Interfaces provided by windowing code *
*****************************************/
void gdk_window_set_geometry_hints (GdkWindow *window,
const GdkGeometry *geometry,
GdkWindowHints geom_mask);
-void gdk_set_sm_client_id (const gchar *sm_client_id);
cairo_region_t *gdk_window_get_clip_region (GdkWindow *window);
cairo_region_t *gdk_window_get_visible_region(GdkWindow *window);