Greg,

Your suggestion works well.

Many thanks,
Cyril

>You might try the Win32 API:
>
>

>DECLARE INTEGER LockWindowUpdate IN Win32API INTEGER nHandle
>

>
>Then call like:
>
>

>LockWindowUpdate(_VFP.HWnd)
>...
>...
>LockWindowUpdate(0)
>

>
>This will lock the main VFP window from any updates. Be sure to call with a zero to release the window and allow updates to be processed.