Не получается скомпилировать пример из SDK

// Class that aggregates an IDirectDraw interface
 
class CAggDirectDraw : public IDirectDraw, public CUnknown
{
protected:
 
    LPDIRECTDRAW m_pDirectDraw;
 
public:
 
    DECLARE_IUNKNOWN
    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid,__deref_out void **ppv);
 
    // Constructor and destructor
 
    CAggDirectDraw(__in_opt LPCTSTR pName,__inout_opt LPUNKNOWN pUnk) :
        CUnknown(pName,pUnk),
        m_pDirectDraw(NULL) { };
 
    virtual CAggDirectDraw::~CAggDirectDraw() { };  // !!!!!!! СТРОКА 54 - ЗДЕСЬ ОШИБКА
 
    // Set the object we should be aggregating
    void SetDirectDraw(__inout LPDIRECTDRAW pDirectDraw) {
        m_pDirectDraw = pDirectDraw;
    }
 
    // IDirectDraw methods
 
    STDMETHODIMP Compact();
    STDMETHODIMP CreateClipper(DWORD dwFlags,__deref_out LPDIRECTDRAWCLIPPER *lplpDDClipper,__inout_opt IUnknown *pUnkOuter);
    STDMETHODIMP CreatePalette(DWORD dwFlags,__in LPPALETTEENTRY lpColorTable,__deref_out LPDIRECTDRAWPALETTE *lplpDDPalette,__inout_opt IUnknown *pUnkOuter);
    STDMETHODIMP CreateSurface(__in LPDDSURFACEDESC lpDDSurfaceDesc,__deref_out LPDIRECTDRAWSURFACE *lplpDDSurface,__inout_opt IUnknown *pUnkOuter);
    STDMETHODIMP DuplicateSurface(__in LPDIRECTDRAWSURFACE lpDDSurface,__deref_out LPDIRECTDRAWSURFACE *lplpDupDDSurface);
    STDMETHODIMP EnumDisplayModes(DWORD dwSurfaceDescCount,__in LPDDSURFACEDESC lplpDDSurfaceDescList,__in LPVOID lpContext,__in LPDDENUMMODESCALLBACK lpEnumCallback);
    STDMETHODIMP EnumSurfaces(DWORD dwFlags,__in LPDDSURFACEDESC lpDDSD,__in LPVOID lpContext,__in LPDDENUMSURFACESCALLBACK lpEnumCallback);
    STDMETHODIMP FlipToGDISurface();
    STDMETHODIMP GetCaps(__out LPDDCAPS lpDDDriverCaps,__out LPDDCAPS lpDDHELCaps);
    STDMETHODIMP GetDisplayMode(__out LPDDSURFACEDESC lpDDSurfaceDesc);
    STDMETHODIMP GetFourCCCodes(__inout LPDWORD lpNumCodes,__out_ecount(*lpNumCodes) LPDWORD lpCodes);
    STDMETHODIMP GetGDISurface(__deref_out LPDIRECTDRAWSURFACE *lplpGDIDDSurface);
    STDMETHODIMP GetMonitorFrequency(__out LPDWORD lpdwFrequency);
    STDMETHODIMP GetScanLine(__out LPDWORD lpdwScanLine);
    STDMETHODIMP GetVerticalBlankStatus(__out LPBOOL lpblsInVB);
    STDMETHODIMP Initialize(__in GUID *lpGUID);
    STDMETHODIMP RestoreDisplayMode();
    STDMETHODIMP SetCooperativeLevel(HWND hWnd,DWORD dwFlags);
    STDMETHODIMP SetDisplayMode(DWORD dwWidth,DWORD dwHeight,DWORD dwBpp);
    STDMETHODIMP WaitForVerticalBlank(DWORD dwFlags,HANDLE hEvent);
};