Function CloseAllNonVitalWindows

src/window.cpp:3358–3366

* It is possible that a stickied window gets to a position where the * 'close' button is outside the gaming area. You cannot close it then; except * with this function. It closes all windows calling the standard function, * then, does a little hacked loop of closing all stickied windows. Note * that standard windows (status bar, etc.) are not stickied, so these aren't affected */

 * that standard windows (status bar, etc.) are not stickied, so these aren't affected
 */
void CloseAllNonVitalWindows()
{
	/* Note: the container remains stable, even when closing windows. */
	for (Window *w : Window::Iterate()) {
		if (!w->window_desc.flags.Test(WindowDefaultFlag::NoClose)) {
			w->Close();
		}
	}
}

/**
 * Delete all messages and close their corresponding window (if any).