KOALAA.H

/* 
 * KOALAA.H 
 * 
 * Definition of the Koala object using Aggregation, Chapter 2 
 * Included only from KOALAA.CPP. 
 * 
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Microsoft 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#ifndef _KOALAA_H_ 
#define _KOALAA_H_ 
 
 
class CImpIKoala_A; 
typedef CImpIKoala_A *PCImpIKoala_A; 
 
class CKoalaA : public IUnknown 
    { 
    friend CImpIKoala_A; 
 
    private: 
        DWORD           m_cRef;         //Object reference count 
 
        PCImpIKoala_A   m_pImpIKoala;   //Interface implementation 
 
        IUnknown       *m_pIUnknown;    //From Animal 
        IAnimal        *m_pIAnimal;     //From Animal, released 
 
    public: 
        CKoalaA(void); 
        ~CKoalaA(void); 
 
        BOOL Init(void); 
 
        //IUnknown members, non-delegating 
        STDMETHODIMP         QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(DWORD) AddRef(void); 
        STDMETHODIMP_(DWORD) Release(void); 
    }; 
 
 
typedef CKoalaA *PCKoalaA; 
 
 
class CImpIKoala_A : public IKoala 
    { 
    private: 
        DWORD       m_cRef;         //For debugging 
        PCKoalaA    m_pObj;         //Back pointer 
 
    public: 
        CImpIKoala_A(PCKoalaA); 
        ~CImpIKoala_A(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 _KOALAA_H_