Function CallWindowGameTickEvent

src/window.cpp:3326–3331

* Dispatch OnGameTick event over all windows */

 * Dispatch OnGameTick event over all windows
 */
void CallWindowGameTickEvent()
{
	for (Window *w : Window::Iterate()) {
		w->OnGameTick();
	}
}

/**
 * Try to close a non-vital window.