Here's a suggestion for VFP6. Substitute your own form for _SCREEN (usually not a bad idea)and create .Windowstate_ASSIGN() event.

**--** Steve

>Hi Gang,
>
>I'm kinda checking my own work with this one, so please bear with me. The problem is this: Is there a way to monitor the .WindowState of the _SCREEN? There are two constraints: One, no timer (already thought of that one); and Two, it must be 100% reliable.
>
>tia,