I have this problem: i would like to add in my application (MFC, VC++ 9.0) a thumbnail of the content of another application. The thumbnail is not a static one, but changes in real time. In other words, my application should display the content (in real time, but smaller than the original) of the client area of another application, in which the content is in an openGL image that rapidly change.
I have in mind the thumbnail preview of the Windows 7/Vista taskbar, that changes in real time the content of the client area of any application. Ok, I would like to put that little window in my app! :-)
I believed that there were some APIs to do that (or some controls), but I haven't found anything...
Is there a way to display a real time stretched image showing the content of another window?