I need to control the painting of the border of CWnd derived classes. I can do this for some windows by handling the WM_NCPAINT message to over-draw the existing border. However, it other classes derived from CWnd, such as CTabCtrl and CEdit, the border is drawn after recieving the WM_NCPAINT message and I have not been able to prevent the border from being drawn. In general, I wish to control the painting of borders in all types of windows. How can I do this?