Unregisters a gdk.Window from the widget that was previously set up with Widget.registerWindow. You need to call this when the window is no longer used by the widget, such as when you destroy it.
a gdk.Window
3.8
Unregisters a gdk.Window from the widget that was previously set up with Widget.registerWindow. You need to call this when the window is no longer used by the widget, such as when you destroy it.