Access to own created window

[Alexandra]

Hi All,

I'm new with AutoIt and I need your help >_<

I have VS 2008 project, that use WinAPI. It creates own window (with AfxRegisterWndClass) and puts there results using OnPaint, so it just an image. And I need to get this results with help of AutoIt, but I don't know how can I do this. I find solutions for other controls, I just can use "SendMessage" with necessary parameters, or use predefined functions in "include" directory. But I don't know how it works with own's created windows.

Please, could anybody help me?