C++ 获取UUID

#include <string>

#include <stdio.h>

#if defined(WIN32)||defined(WINCE)||defined(WIN64)

#include <objbase.h>

#else

#include <uuid/uuid.h> 

#endif



std::string GetUUID(std::string& strUUID)

{

    strUUID = "";

#if defined(WIN32)||defined(WINCE)||defined(WIN64)

    GUID guid;

    if ( !CoCreateGuid(&guid) )

    {

        char buffer[64] = {0};

        _snprintf_s(buffer, sizeof(buffer),

            //"%08X%04X%04X%02X%02X%02X%02X%02X%02X%02X%02X",    //大写

            "%08x%04x%04x%02x%02x%02x%02x%02x%02x%02x%02x",        //小写

            guid.Data1, guid.Data2, guid.Data3,

            guid.Data4[0], guid.Data4[1], guid.Data4[2],

            guid.Data4[3], guid.Data4[4], guid.Data4[5], 

            guid.Data4[6], guid.Data4[7]);

        strUUID = buffer;

    }

#else

    uuid_t uu;

    uuid_generate(uu);

#endif

    return strUUID;  

}