Unregisters a #GdkWindow from the widget that was previously set up with gtk.widget.Widget.registerWindow. You need to call this when the window is no longer used by the widget, such as when you destroy it.
a #GdkWindow
Unregisters a #GdkWindow from the widget that was previously set up with gtk.widget.Widget.registerWindow. You need to call this when the window is no longer used by the widget, such as when you destroy it.