I agree (at least as far as function/block local variables are concerned), except that I'd probably just name it w. If it's not obvious from context that w sta

I agree (at least as far as function/block local variables are concerned), except that I'd probably just name it w. If it's not obvious from context that w stands for window, then the function probably needs to be refactored anyway. That said, dmw is fine if the function needs to deal with more than one type of window.