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))