IMediaStream::GetMultiMediaStream method (mmstream.h)

项目
4/26/2023

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Note This interface is deprecated. New applications should not use it.

Retrieves a pointer to the multimedia stream that contains the specified media stream.

Syntax

HRESULT GetMultiMediaStream(
  [out] IMultiMediaStream **ppMultiMediaStream
);

Parameters

[out] ppMultiMediaStream

Address of a pointer to an IMultiMediaStream interface object that will point to the multimedia stream from which the current media stream was created.

Return value

Returns S_OK if successful or E_POINTER if ppMultiMediaStream is invalid.

Remarks

This method increments the reference count of the retrieved object pointer.

Requirements


Target Platform	Windows
Header	mmstream.h