i like the idea that LaMothe uses in his books using macros to define screen width, height, etc... Just wondering how some of you handle changing screen resolutions? "You call him Dr. Grip, doll!"

LONG ChangeDisplaySettings( LPDEVMODE lpDevMode, DWORD dwflags);

That''s how you would do it in Win32. You can find details under MSDN. In DX like LaMothe uses, you would use the SetDisplayMode function.