IENUMUNK.H

/* 
 * IENUMUNK.H 
 * 
 * Definitions of a template IEnumUnknown enumerator. 
 * 
 * Copyright (c)1993-1996 Microsoft Corporation, All Right Reserved 
 * 
 * Kraig Brockschmidt, Software Design Engineer 
 * Microsoft Systems Developer Relations 
 * 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#ifndef _IENUMUNK_H_ 
#define _IENUMUNK_H_ 
 
 
class CEnumUnknown; 
typedef class CEnumUnknown *PCEnumUnknown; 
 
class CEnumUnknown : public IEnumUnknown 
    { 
    private: 
        ULONG           m_cRef;     //Object reference count 
        LPUNKNOWN       m_pUnkRef;  //IUnknown for ref counting 
        ULONG           m_iCur;     //Current element 
        ULONG           m_cunk;     //Number of unknowns in us 
        LPUNKNOWN       m_prgunk;   //Source of unknowns 
 
    public: 
        CEnumUnknown(LPUNKNOWN, ULONG, LPUNKNOWN); 
        ~CEnumUnknown(void); 
 
        //IUnknown members that delegate to m_pUnkRef. 
        STDMETHODIMP         QueryInterface(REFIID, LPVOID *); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        //IEnumUnknown members 
        STDMETHODIMP Next(ULONG, LPUNKNOWN *, ULONG *); 
        STDMETHODIMP Skip(ULONG); 
        STDMETHODIMP Reset(void); 
        STDMETHODIMP Clone(IEnumUnknown **); 
    }; 
 
 
#endif //_IENUMUNK_H_