IMultiMediaStream::GetMediaStream method (mmstream.h)

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

The GetMediaStream method retrieves a media stream, specified by purpose ID.

Syntax

HRESULT GetMediaStream(
  REFMSPID     idPurpose,
  IMediaStream **ppMediaStream
);

Parameters

idPurpose

Reference to an MSPID that identifies the media stream to retrieve.

ppMediaStream

Address of variable that receives an IMediaStream interface pointer.

Return value

Returns an HRESULT value. Possible values include the following.

Return code	Description
E_POINTER	NULL pointer valid.
MS_E_NOSTREAM	No matching stream.
S_OK	Success.

Remarks

If the method succeeds, the caller must release the IMediaStream interface.

Requirements

Requirement	Value
Target Platform	Windows
Header	mmstream.h

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