Jabo

ok, So this is my first tryout with dx. All i want to do is adjust the gamma of an image in a picture box. Obviously I probably need to adjust it as its coming in but does anyone know how to explain the simplest/proper way to adjust gamma of an image? I tried looking through the help and such but everything is being dropped for something newer and it warns not to use it. So obviously there must be a new and improved way, I'm just missing it I'm using Visual Stuido 2005 and have downloaded the dx9 SDK. Thanks in advance to anyone who can help or link to simplified help for me.