thank you luc. but I just meant an example. my question was general, I mean what if I want to access a button in photoshop for example, to make a little plugin for myself... thank you again. :)

SO that's possible...... but a little hard as you say. can you mention some basic information for solving this problem. I mean what background should I have to do this. and thank you very much for your reply. :)

don't say that. you are not stupid.That is my mistake either. it doesn't really help much. Searching in MSDN is a mistake. . . . . Or maybe I'm stupid too. :sigh: