Hi Martin

>Each window can been ownner and parent window.
>Active-X control has property hwnd - it's handle window.
>You use API function GetWindow(hwnd, nFlags) or FindWindowEx(hwndParent,hwndChildAfter,lpszClass, lpszWindow) (see to MSDN) for retrieving child windows.

I will try it out and trouble you if there is anything that I don't follow. Thanks a lot.