几个VC宏定义

#define MAKEWORD(a, b) ((WORD)(((BYTE)(a)) | ((WORD)((BYTE)(b))) << 8)) #define MAKELONG(a, b) ((LONG)(((WORD)(a)) | ((DWORD)((WORD)(b))) << 16)) #define LOWORD(l) ((WORD)(l)) #define HIWORD(l) ((WORD)(((DWORD)(l) >> 16) & 0xFFFF)) #define LOBYTE(w) ((BYTE)(w)) #define HIBYTE(w) ((BYTE)(((WORD)(w) >> 8) & 0xFF))