MAKEWORD(2,2)解释
宏的原始定义:#define MAKEWORD(a, b) ((WORD)(((BYTE)(((DWORD_PTR)(a)) & 0xff)) | ((WORD)((BYTE)(((DWORD_PTR)(b)) & 0xff))) 返回值:一个无符号16位整形数。例子:WORD wVersionRequested;wVersionRequested = MAKEWORD( 2,