I've just started programming in DirectX, and I've been using the examples that come with the DirectX sdk. Well I'm on example 4 and the transparency is not working right. The donuts are animated but they keep their background color also. The program uses the BltFast function and I have it set to use the Source Color Key. I also have the DDSetColorKey set to black, which is the background of the donuts. Yet the program still doesn't work. Is there anything else that could be wrong? Thanks