ReadClassStg

Reads the CLSID from the storage object.

HRESULT ReadClassStg(

IStorage * pStg,	//Points to the storage containing the CLSID to be retrieved
CLSID * pclsid	//Points to location for returning the CLSID
);

Parameters
pStg

Points to the storage object containing the CLSID to be returned.

pclsid

Points to location where the CLSID is to be returned. May return CLSID_NULL.

Return Values
S_OK

Indicates the CLSID was returned successfully.

E_OUTOFMEMORY

Indicates the CLSID could not be returned due to lack of memory.

See also the IStorage::Stat method for other error return values.

See Also
This function is simply a helper function that calls the IStorage::Stat method and retrieves the CLSID from the resulting STATSTG structure.