Applies to: desktop apps | Metro style apps
Creates a GUID, a unique 128-bit integer used for CLSIDs and interface identifiers.
Syntax
HRESULT CoCreateGuid( __out GUID *pguid );
Parameters
- pguid [out]
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A pointer to the requested GUID.
Return value
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The GUID was successfully created. |
Errors returned by UuidCreate are wrapped as an HRESULT.
Remarks
The CoCreateGuid function calls the RPC function UuidCreate, which creates a GUID, a globally unique 128-bit integer. Use CoCreateGuid when you need an absolutely unique number that you will use as a persistent identifier in a distributed environment.To a very high degree of certainty, this function returns a unique value – no other invocation, on the same or any other system (networked or not), should return the same value.
Requirements
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Minimum supported client | Windows 2000 Professional |
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Minimum supported server | Windows 2000 Server |
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See also
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Build date: 3/7/2012