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CTransformFilter.CTransformFilter constructor

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Constructor method.

Syntax

CTransformFilter(
   TCHAR     *pObjectName,
   LPUNKNOWN lpUnk,
   CLSID     clsid
);

Parameters

pObjectName

String containing the debug name of the filter. For more information, see CBaseObject.

lpUnk

Pointer to the owner of this object. If the object is aggregated, pass a pointer to the aggregating object's IUnknown interface. Otherwise, set this parameter to NULL.

clsid

Class identifier of the filter.

Remarks

The constructor does not create the filter's pins. That happens during the first call to the GetPin method. The constructor initializes the m_pInput and m_pOutput member variables to NULL.

Requirements

Requirement Value
Header
Transfrm.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CTransformFilter Class