GUID and UUID It's the same , Represents a globally unique identification code .

Here is Windows In the system , produce GUID One way （Windows API）

char* GUID_Generator()

{

char buf[ ] = {};

GUID guid;

CoInitialize(NULL);

if (S_OK == ::CoCreateGuid(&guid))

{

_snprintf( buf, sizeof(buf),

"{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",

guid.Data1,

guid.Data2,

guid.Data3,

guid.Data4[], guid.Data4[],

guid.Data4[], guid.Data4[],

guid.Data4[], guid.Data4[],

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

}

CoUninitialize();
return (char*)buf;

}

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