Hi Martin,

>You can use command MOUSE AT x,y PIXELS if mouse is outside region.

I'm not sure how well the MOUSE AT command works during a mousemove event. I tried using this command like this:

ThisForm.LockScreen = .T.
mouse at lnRow, lnCol pixels
ThisForm.LockScreen = .F.

But on my system the result was very "jerky" vs. smooth and I would sometimes momentarily lose the mouse cusor.

Do you have any ideas on how I might fix these problems?

Thanks for your help,

Malcolm