common.h

#ifndef COMMON_H_
#define COMMON_H_

#define DUMMY_IUNKNOWN_REFERENCE                            \
    protected:                                              \
    size_t _ref;                                            \
    public:                                                 \
    virtual ULONG STDMETHODCALLTYPE AddRef(void)            \
    {                                                       \
        return ++_ref;                                      \
    }                                                       \
    virtual ULONG STDMETHODCALLTYPE Release(void)           \
    {                                                       \
        return --_ref;                                      \
    }

#define DUMMY_IUNKNOWN                      \
    HRESULT STDMETHODCALLTYPE               \
    QueryInterface(REFIID iid, LPVOID *ppv) \
    {                                       \
        return E_NOINTERFACE;               \
    }                                       \
    DUMMY_IUNKNOWN_REFERENCE

#endif // COMMON_H_