public static interface Window.ConfigureEvent
EventConfigureobject has the position and size information.
This event will also be emitted when the Window is first mapped and when it reappears on the screen having been obscured, so don't count on the values received being different from a previous iteration.
Note that this event signal plays a fairly crucial role in GTK internally; it is used by numerous subsystems (notably the size-request / size-allocation mechanism) to propagate that a Window had a new configuration. Do not attempt to block this signal.