Fabio

Thanks for your suggestion. However when an modal form is on top, the stack level is higher than 1.
I want the time code runs no matter a modal form or a modaless form is on top, but not between code lines.
Will it be possible to do it?

Ben



>>How can I know if some VFP code is still running when a timer event is fired?
>>
>>TIA
>>Ben
>
>vfp uses a common stack,
>then check stack level
>
>IF PROGRAM(-1)>1
>....
>
>
>If Timer event run at level 2 or more then the event is fired between 2 running lines.