>>>Well, I found it, but I cannot get it to work. I want to force focus to stay on my app while it is running. I can trap for it in the handlewinmsg but by the time it is there, the focus has switched to the other app.
>>
>>I guess you can look at the .h file and see if there's any other event which precedes this.
>
>I think I may have an option. I found this article by Rick Strahl:
>http://www.west-wind.com/Weblog/posts/1869.aspx
>
>He's doing something different, but I may be able to set the current window handle for the fox app (as he does) so that when the deactivate fires, turn around and set focus back to the original fox app window handler by activate or whatever. Not ideal (focus would still go off for a second) but focus would come right back (or should in theory)....
>
>I'll play around with it....

I believe most Windows OSs have a so-called "kiosk mode" which is designed to restrict users to a single app. You might get some ideas if you Google that with your OS.