Hi Armin,

I have no need to use it yet and I haven't seen any problem reported with this approch on the UT. There's faq#8124 with additional info.

>Hi Sergey,
>
>I've recently heard about using this approach for having own code fired in _screen events. But that person didn't recommend using it without further explanation.
>
>I think this feature is undocumented, isn't ist? Do you (or has anyone else) have made any bad (or good) experiences with that? I'm asking since we're currently using an SDI form (which has some disadvantages) due to the single reason, that we have an "Outlook-Style" UI that needs resizing.
>
>Since we are switching to another framework now and this means some changes in the frontend (the system is still under construction), this would be a good point to go back to the VFP main window. But before using the main window, I would like to make really sure, that hooking in the _screen events is save.
>
>Thanks for any advice.
>Armin