How can I create a application window that is showing just the borders of the window, but i don't want to show the contents of the window itself. I mean i want to see the rest of the desktop or the others windows through the entire region of my window. No using transparences. Just draw the borders. I suppose it's like detecting the messages WM_ERASEBKGND and WM_PAINT and doing nothing in these cases to force not painting in the contens, but I have tried and window is still drawing a white background. How can i get it?