INTERFAC.H

/* 
 * INTERFAC.H 
 * 
 * Definition of IAnimal and IKoala used to demonstrate 
 * reusability mechanisms. 
 * 
 * Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Microsoft 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#ifndef _INTERFAC_H_ 
#define _INTERFAC_H_ 
 
 
DECLARE_INTERFACE_(IAnimal, IUnknown) 
    { 
    //IUnknown members 
    STDMETHOD(QueryInterface) (THIS_ REFIID, PPVOID) PURE; 
    STDMETHOD_(ULONG,AddRef)  (THIS) PURE; 
    STDMETHOD_(ULONG,Release) (THIS) PURE; 
 
    //IAnimal members 
    STDMETHOD(Eat)(THIS) PURE; 
    STDMETHOD(Sleep)(THIS) PURE; 
    STDMETHOD(Procreate)(THIS) PURE; 
    }; 
 
typedef IAnimal *PANIMAL; 
 
 
DECLARE_INTERFACE_(IKoala, IUnknown) 
    { 
    //IUnknown members 
    STDMETHOD(QueryInterface) (THIS_ REFIID, PPVOID) PURE; 
    STDMETHOD_(ULONG,AddRef)  (THIS) PURE; 
    STDMETHOD_(ULONG,Release) (THIS) PURE; 
 
    //IKoala members 
    STDMETHOD(ClimbEucalyptusTrees)(THIS) PURE; 
    STDMETHOD(PouchOpensDown)(THIS) PURE; 
    STDMETHOD(SleepForHoursAfterEating)(THIS) PURE; 
    }; 
 
typedef IKoala *PKOALA; 
 
 
#endif //_INTERFAC_H_