IUNKNOWN.H

/* 
 * IUNKNOWN.H 
 * 
 * Definitions and function prototypes for a template IUnknown 
 * interface implementation that delegates all IUnknown calls 
 * to some object controller, ignorant of aggregation. 
 * 
 * Copyright (c)1993-1996 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Software Design Engineer 
 * Microsoft Systems Developer Relations 
 * 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#ifndef _IUNKNOWN_H_ 
#define _IUNKNOWN_H_ 
 
class CImpIUnknown; 
typedef class CImpIUnknown *PIMPIUNKNOWN; 
 
class CImpIUnknown : public IUnknown 
    { 
    protected: 
        ULONG           m_cRef;      //Interface reference count 
        LPVOID          m_pObj;      //Back pointer to the object 
        LPUNKNOWN       m_pUnkOuter; //Fr delegation 
 
    public: 
        CImpIUnknown(LPVOID, LPUNKNOWN); 
        ~CImpIUnknown(void); 
 
        //IUnknown interface members 
        STDMETHODIMP QueryInterface(REFIID, LPVOID *); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
    }; 
 
 
#endif //_IUNKNOWN_H_