ReadClassStm - OLE Programmer's Reference

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ReadClassStm

Reads the CLSID previously written to a stream object with the WriteClassStm method.

HRESULT ReadClassStm(

IStream * pStm,	//Points to the stream from which the CLSID is to be read
CLSID * pclsid	//Points to the location where the CLSID is returned
);

Parameters
pStm

Points to the stream object containing the CLSID to be read. This CLSID must have been previously written to the stream object using WriteClassStm.

pclsid

Points to the location where the CLSID is to be returned.

Return Values
S_OK

Indicates the CLSID was successfully returned.

STG_E_READFAULT

Indicates end of file was reached.

See also the IStream::Read method for other error return values.

Comments
Most applications do not call the ReadClassStm method. OLE calls it before making a call to an object's IPersistStream::Load implementation.

See Also
WriteClassStm, ReadClassStg, WriteClassStg

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