How can I get the classnameNN or control ID of a focused control?

[chenxu]

I need to control some component of some panel which the control ID and the class name of the controls on it change very time. And the UDF written by SmOke_N failed to read the control ID by position.

It's lucky that I can very easy focus the the control, I am thinking about whether can I get the control ID or classnameNN when the control is focused

[Zedna]

Look here

[chenxu]

Look here

Thanks a lot