Patrick,
thanks. The link you provided was good input. They did it a little bit different that the way I dit it.
Now I have my Image. I am also not working with the HWND of the Application, because it gives
me the frame/GUI around. I have now a process of defining an own "RECT" Window, and shoot this one.
But all this leads me to a next issue.
How can I enable a Layer (by Code / .Net / VB) , like when clicking on it in the Display Control ?