Hi Hugh,
Been awhile, but we first met on another forum at least five or six years ago.
In addition to what Craig mentioned about the differences in the _VFP and _SCREEN objects, you should also note the both have their own hWnd proprety. This makes it much easier when dealing with API calls (you don't need Foxtools to get a form's, or main window's window handle.
Regards, and thanks so much for your recent efforts in connection with the 10 year anniversary,
George
Ubi caritas et amor, deus ibi est