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CLSIDFromProgID
Looks up a CLSID from a ProgID in the registry.
HRESULT CLSIDFromProgID(
LPCOLESTR lpszProgID,
| //Points to the ProgID whose CLSID is requested
| LPCLSID pclsid
| //Receives a pointer to the created CLSID
| );
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Parameters
lpszProgID
Points to the ProgID whose CLSID is requested.
pclsid
Receives a pointer to the location of the created CLSID on return.
Return Values
S_OK
Indicates the CLSID was created successfully.
CO_E_CLASSSTRING
Indicates the registered CLSID for the ProgID is invalid.
REGDB_E_WRITEREGDB
Indicates an error occurred writing to the registry.
E_OUTOFMEMORY
Out of memory.
E_INVALIDARG
Indicates one or more arguments are invalid.
E_UNEXPECTED
Indicates an unexpected error occurred.
Comments
Given a ProgID, CLSIDFromProgID looks up its associated CLSID from a ProgID in the registry. If the ProgID
cannot be found in the registry, CLSIDFromProgID creates an OLE 1 CLSID for it. Because of the restrictions placed on OLE 1
CLSID values, CLSIDFromProgID and CLSIDFromString are the only two functions that can be used to generate a CLSID for an OLE 1 object.
See Also
ProgIDFromCLSID
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