84 lines
1.2 KiB
C++
84 lines
1.2 KiB
C++
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/*++
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Copyright (C) 1996-2001 Microsoft Corporation
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Module Name:
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UNK.CPP
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Abstract:
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IUnknown Helpers
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History:
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--*/
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#include "precomp.h"
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#include "unk.h"
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CUnk::CUnk(CLifeControl* pControl, IUnknown* pOuter)
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: m_lRef(0), m_pControl(pControl), m_pOuter(pOuter)
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{
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if( m_pControl )
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{
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m_pControl->ObjectCreated((IUnknown*)this);
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}
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}
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CUnk::~CUnk()
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{
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if( m_pControl )
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{
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m_pControl->ObjectDestroyed((IUnknown*)this);
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}
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}
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BOOL CUnk::Initialize()
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{
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m_lRef++;
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GetUnknown()->AddRef();
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BOOL bRes = OnInitialize();
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GetUnknown()->Release();
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m_lRef--;
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return bRes;
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}
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// Non-delegating implementation
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STDMETHODIMP CUnk::QueryInterface(REFIID riid, void** ppv)
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{
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if(riid == IID_IUnknown)
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*ppv = (IUnknown*)this;
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else
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*ppv = GetInterface(riid);
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if(*ppv)
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{
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((IUnknown*)*ppv)->AddRef();
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return S_OK;
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}
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else return E_NOINTERFACE;
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}
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ULONG CUnk::AddRef()
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{
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return InterlockedIncrement(&m_lRef);
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}
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ULONG CUnk::Release()
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{
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long lRef = InterlockedDecrement(&m_lRef);
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if(lRef == 0)
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{
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m_lRef++;
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delete this;
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}
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return lRef;
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}
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