If it was possible, a “WHEEL” variable in DirectGuiGlobals would be a nicer addition, because it would result in cleaner code. Though I say this because I can’t think of any other use for checking the currently focused region.
As for the last workaround you mentioned, how exactly do you think of using it? As the button 1 click is already used by the camera manager. This isn’t a keyboard button to at least check MouseWatcher.isButtonDown(KeyboardButton.button())