CPersistStream.ReadFromStream method

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Reads the filter's data from the given stream.

Syntax

virtual HRESULT ReadFromStream(
   IStream *pStream
);

Parameters

pStream

Pointer to an IStream interface from which data is to be read.

Return value

Returns S_OK. The derived class should return a valid HRESULT value.

Remarks

The default version reads nothing; it can be overridden to read data specific to your class.

Requirements

See also

CPersistStream Class