66 lines
1.1 KiB
C++
66 lines
1.1 KiB
C++
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/***
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*cunk.cpp
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*
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* Copyright (C) 1992-93, Microsoft Corporation. All Rights Reserved.
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* Information Contained Herein Is Proprietary and Confidential.
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*
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*Purpose:
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* This file implements a trivial class that supports IUnknown*.
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*
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*Revision History:
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*
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* [00] 10-Apr-93 bradlo: Created.
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*
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*Implementation Notes:
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*
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*****************************************************************************/
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#include "common.h"
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#include "cunk.h"
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HRESULT
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CUnk::Create(IUnknown FAR* FAR* ppunk)
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{
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CUnk FAR* punk;
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if((punk = new FAR CUnk()) == NULL)
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return ResultFromScode(E_OUTOFMEMORY);
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punk->AddRef();
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*ppunk = (IUnknown FAR*)punk;
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return NOERROR;
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}
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STDMETHODIMP
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CUnk::QueryInterface(REFIID riid, void FAR* FAR* ppv)
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{
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if(IsEqualIID(riid, IID_IUnknown)){
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*ppv = this;
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AddRef();
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return NOERROR;
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}
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return ResultFromScode(E_NOINTERFACE);
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}
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STDMETHODIMP_(unsigned long)
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CUnk::AddRef()
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{
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return ++m_refs;
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}
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STDMETHODIMP_(unsigned long)
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CUnk::Release()
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{
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if(--m_refs == 0){
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delete this;
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return 0;
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}
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return m_refs;
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}
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