Windows编程

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Visual C++

KOALAC.H：源码内容

							/*
 * KOALAC.H
 *
 * Definition of the Koala object using containment, Chapter 2
 * Included only from KOALAC.CPP.
 *
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
 *
 * Kraig Brockschmidt, Microsoft
 * Internet  :  kraigb@microsoft.com
 * Compuserve:  >INTERNET:kraigb@microsoft.com
 */
#ifndef _KOALAC_H_
#define _KOALAC_H_
class CImpIAnimal_K;
typedef CImpIAnimal_K *PCImpIAnimal_K;
class CImpIKoala_C;
typedef CImpIKoala_C *PCImpIKoala_C;
class CKoalaC : public IUnknown
    {
    friend CImpIAnimal_K;
    friend CImpIKoala_C;
    private:
        DWORD           m_cRef;         //Object reference count
        PCImpIAnimal_K  m_pImpIAnimal;  //Interface implementation
        PCImpIKoala_C   m_pImpIKoala;   //Interface implementation
        IAnimal        *m_pIAnimal;     //From Animal
    public:
        CKoalaC(void);
        ~CKoalaC(void);
        BOOL Init(void);
        //IUnknown members, non-delegating
        STDMETHODIMP         QueryInterface(REFIID, PPVOID);
        STDMETHODIMP_(DWORD) AddRef(void);
        STDMETHODIMP_(DWORD) Release(void);
    };
typedef CKoalaC *PCKoalaC;
class CImpIAnimal_K : public IAnimal
    {
    private:
        DWORD       m_cRef;         //For debugging
        PCKoalaC    m_pObj;         //Back pointer
    public:
        CImpIAnimal_K(PCKoalaC);
        ~CImpIAnimal_K(void);
        //IUnknown members
        STDMETHODIMP         QueryInterface(REFIID, PPVOID);
        STDMETHODIMP_(DWORD) AddRef(void);
        STDMETHODIMP_(DWORD) Release(void);
        //IAnimal members
        STDMETHODIMP Eat(void);
        STDMETHODIMP Sleep(void);
        STDMETHODIMP Procreate(void);
    };
class CImpIKoala_C : public IKoala
    {
    private:
        DWORD       m_cRef;         //For debugging
        PCKoalaC    m_pObj;         //Back pointer
    public:
        CImpIKoala_C(PCKoalaC);
        ~CImpIKoala_C(void);
        //IUnknown members
        STDMETHODIMP         QueryInterface(REFIID, PPVOID);
        STDMETHODIMP_(DWORD) AddRef(void);
        STDMETHODIMP_(DWORD) Release(void);
        //IKoala members
        STDMETHODIMP ClimbEucalyptusTrees(void);
        STDMETHODIMP PouchOpensDown(void);
        STDMETHODIMP SleepForHoursAfterEating(void);
    };
#endif _KOALAC_H_

						