Hi David,

This is a general issue in VFP, no only with DoEvents(). For example, if you put a spinner on a form and click the up button, increasing the value is relatively slow. If you slightly move the mouse on the button, it suddenly speeds up.

Christof


>This is a copy of a FAQ I just posted:
>
>Calling DoEvents() has always been horribly slow in VFP. While reporting another issue with Hong-Chee Tan at Microsoft he found that moving the mouse around alters the test code I sent him. So this fact gives a workaround to speed DoEvents back up using a MOUSE command. Try this code for example:
>
>

* doevtest.prg
>lparameter llMouse
>
>local x, i
>
>x = seconds()
>
>for i = 1 to 100
>   if ( llMouse )
>      mouse at mrow(), mcol()
>   endif
>   doevents()
>endfor
>
>activate window "debug output"
>debugout seconds() - x

>
>Run it with and without a .t. argument and see the difference in execution times 26 vs 0.5 seconds on a P2-300 Win95 class machine.