HANDLE 的定义

C/C++ code

winnt.h 中的HANDLE，定义如下；#ifdef STRICTtypedef void *HANDLE;#if 0 && (_MSC_VER > 1000)#define DECLARE_HANDLE(name) struct name##__; typedef struct name##__ *name#else#define DECLARE_HANDLE(name) struct name##__{int unused;}; typedef struct name##__ *name#endif#elsetypedef PVOID HANDLE;#define DECLARE_HANDLE(name) typedef HANDLE name#endiftypedef HANDLE *PHANDLE;这段代码什么意思啊？？？