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

Sounds OK so far - Can you send me the code? Examples are OK with the SDK so I presume you have been tweaking/coding.
I'll take a look if you can mail it to me