GtkText and GtkCList widgets in GTK+ to make sure any
GraphicsExpose events are handled before the widget is scrolled.
WARNING: gdk_event_get_graphics_expose has been deprecated since version 2.18 and should not be used in newly-written code.
gdkEventGetGraphicsExpose(window)windowGdkWindow to wait for the events for.GdkEvent] a GdkEventExpose if a GraphicsExpose was received, or NULL if a
NoExpose event was received.