Displaying a picture over video requires some insight of DirectShow and how to build a filter graph. And, adding custom filters in the graph like VMR9 (video mixing renderer). This VMR9 is the key, it is the renderer which allows us to display a picture over video.

CDC * pdc = GetDC();
CDC mCompatibleDC;
mCompatibleDC.CreateCompatibleDC(pdc);
mCompatibleDC.SelectObject(hBitmap);
CRect reSrc(0,0,mBitmapWidth,mBitmapHeight);