IDMOWrapperFilter::Init method (dmodshow.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

The Init method initializes the DMO Wrapper filter with the specified DMO.

Syntax

HRESULT Init(
  REFCLSID clsidDMO,
  REFCLSID catDMO
);

Parameters

clsidDMO

Class identifier (CLSID) of the DMO.

catDMO

CLSID that specifies the category of the DMO.

Return value

Returns S_OK if successful. Otherwise, returns an HRESULT value indicating the cause of the error.

Remarks

In some cases, the DMO Wrapper filter performs optimizations based on the category.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	dmodshow.h
Library	Dmoguids.lib

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