Normal
There is:GUIWindowManager.ActiveWindow - which would return window ID of current window (in your case MovingPictures = 96742)GUIWindowManager.ActiveWindowEx - which would return window ID of routed window as well (in your case dialog yes/no = 100), if there is no dialog open it would return normal window ID, 96742)You should always use IDs to distinguish different windows.
There is:
GUIWindowManager.ActiveWindow - which would return window ID of current window (in your case MovingPictures = 96742)
GUIWindowManager.ActiveWindowEx - which would return window ID of routed window as well (in your case dialog yes/no = 100), if there is no dialog open it would return normal window ID, 96742)
You should always use IDs to distinguish different windows.