Home > COM, Windows API > How to create a GUID programmatically?

How to create a GUID programmatically?

Do the following…

GUID guId = { 0 };
CoCreateGuid( &guId );
// or
UUID uid = { 0 };
UuidCreate( &uid );

For converting to string use…

PUCHAR pChar = 0;

// Convert to string
UuidToString( &uid, &pChar );
MessageBox( NULL, (char*)pChar, NULL, MB_OK );

//Don't forget to free allocated string
RpcStringFree( &pChar );
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