Hi, I need help with this toolbox: wndSize& = FN GROWWINDOW (wndPtr&,point,limitRect) I'm trying to get the width and the height of the window returned in wndSize&. Here is what the FB Help menu says: wndSize&: lo=width,hi=height What is lo and hi ??? Thank you and Merry Christmas to all. Sylvain BTW: Is it possible to scan all the open windows and get their names and their wndPtr& ?