What's the C++ version of Guid.NewGuid()?

Question

I need to create a GUID in an unmanaged windows C++ project. I'm used to C#, where I'd use Guid.NewGuid(). What's the (unmanaged windows) C++ version?

Answer 1

UuidCreate() in Win32 API has exactly the same effect. However you need to pass an address of the variable that will receive the generated value:

UUID newId;
UuidCreate( &newId );

I believe Guid.NewGuid() simply maps onto it inside the .NET runtime.

Answer 2

I think CoCreateGuid is what you're after. Example:

GUID gidReference;
HRESULT hCreateGuid = CoCreateGuid( &gidReference );

Answer 3

You should probably check out he win32 API here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/com/html/8d5cedea-8c2b-4918-99db-1a000989f178.asp

and here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/rpc/rpc/guid.asp