You have two options:

1. Change the colors for all windows (similar to doing it from display
applet) which is clearly not acceptable.
2. Draw the caption yourself. If you do this, changing the color at run-time
is a trivial task.

--
Tomas Restrepo

http://www.*-*-*.com/

But how to draw caption?(no content)

Try DrawText() api.

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http://wss.hypermart.net/

If you have access to MSDN (either on disk otr on-line) search there. You'll
find one of Paul DiLascia's C++ Q&A columns which shows how to draw a
gradient caption bar using MFC. You'll probably be able to modify the code
to make it work as you want.

Have fun.

P.S. I believe the issue you're looking for is Volume 12 Number 1, 1997
--
Tomas Restrepo

http://members.xoom.com/trestrep/