#pragma once #define RGB(r,g,b) ((r) | ((g) << 8) | ((b) << 16)) // This isn't defined by `windows.h` - it's custom #define RGBA(r,g,b,a) ((r) | ((g) << 8) | ((b) << 16) | ((a) << 24)) typedef bool BOOL; #define FALSE false #define TRUE true struct RECT { long left; long top; long right; long bottom; };