cunknown-m-cref.md

description	ms.assetid	title	ms.topic	ms.date	topic_type	api_name	api_type	api_location	ms.custom
CUnknown::m_cRef member - Reference count.	be619a85-ca73-4cee-9df7-20e7be21853b	CUnknown::m_cRef member (Combase.h)	reference	4/26/2023	APIRef kbSyntax	m_cRef	LibDef	Strmbase.lib Strmbase.dll Strmbasd.lib Strmbasd.dll	UpdateFrequency5

CUnknown::m_cRef member

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Reference count.

Syntax

LONG m_cRef;

Remarks

Use this member variable if you override the NonDelegatingAddRef or NonDelegatingRelease method.

Requirements

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