ReadClassStm function (coml2api.h)

The ReadClassStm function reads the CLSID previously written to a stream object with the WriteClassStm function.

Syntax

HRESULT ReadClassStm(
  [in]  LPSTREAM pStm,
  [out] CLSID    *pclsid
);

Parameters

[in] pStm

A pointer to the IStream interface on the stream object that contains the CLSID to be read. This CLSID must have been previously written to the stream object using WriteClassStm.

[out] pclsid

A pointer to where the CLSID is to be written.

Return value

This function also returns any of the error values returned by the ISequentialStream::Read method.

Remarks

Most applications do not call the ReadClassStm function directly. COM calls it before making a call to an object's IPersistStream::Load implementation.

Requirements

See also

ReadClassStg

WriteClassStg

WriteClassStm