windows-nt/Source/XPSP1/NT/multimedia/dshow/vidctl/devsegimpl.h

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2020-09-26 03:20:57 -05:00
//==========================================================================;
//
// devsegimpl.h : additional infrastructure to support implementing device segments
// virtual base class used by devimpl and segimpl to store shared data
// nicely from c++
// Copyright (c) Microsoft Corporation 1999.
//
/////////////////////////////////////////////////////////////////////////////
#pragma once
#ifndef DEVICESEGMENTIMPL_H
#define DEVICESEGMENTIMPL_H
#include <segment.h>
#include <seg.h>
#include <filterenum.h>
#include <errsupp.h>
#ifndef DECLSPEC_NOVTABLE
#define DECLSPEC_NOVTABLE __declspec(novtable)
#endif
namespace MSVideoControl {
class DECLSPEC_NOVTABLE CMSVidDeviceSegmentImpl {
public:
bool m_fInit;
VWSegmentContainer m_pContainer;
DSGraph m_pGraph;
DSFilterList m_Filters;
DSFilterMoniker m_pDev;
CMSVidDeviceSegmentImpl() : m_fInit(false), m_Filters(DSFilterList()) {}
virtual ~CMSVidDeviceSegmentImpl() {
m_pContainer.p = NULL; // we didn't addref to avoid circular ref counts(we're guaranteed nested lifetimes) and
// we don't want to cause an unmatched release so manually clear the pointer
}
};
}; // namespace
#endif
// end of file - devsegimpl.h