cbaseallocator-m-hsem.md

description	ms.assetid	title	ms.topic	ms.date	topic_type	api_name	api_type	api_location	ms.custom
Semaphore that is signaled when a sample becomes available.	1861bc3a-b071-4876-a69c-84bf249260bd	CBaseAllocator::m_hSem member (Amfilter.h)	reference	4/26/2023	APIRef kbSyntax	m_hSem	LibDef	Strmbase.lib Strmbase.dll Strmbasd.lib Strmbasd.dll	UpdateFrequency5

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Semaphore that is signaled when a sample becomes available.

Syntax

HANDLE m_hSem;

Requirements

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

See also

CBaseAllocator Class