#ifndef __COMOBJECTEMBED_H_
#define __COMOBJECTEMBED_H_


template <class Base> //Base must be derived from CComObjectRoot
class CComObjectEmbed : public Base
{
public:
	typedef Base _BaseClass;

	CComObjectEmbed() {m_pOuterUnknown = NULL;}
	CComObjectEmbed(void* pv) {m_pOuterUnknown = (IUnknown*)pv;}
	void SetOuterUnknown(IUnknown *punkContainer) {m_pOuterUnknown = punkContainer;}

#ifdef _ATL_DEBUG_INTERFACES
	~CComObjectEmbed()
	{
		_Module.DeleteNonAddRefThunk(_GetRawUnknown());
		_Module.DeleteNonAddRefThunk(m_pOuterUnknown);
		FinalRelease();
	}
#else
	~CComObjectEmbed()
	{
		FinalRelease();
	}
#endif

	STDMETHOD_(ULONG, AddRef)() {return OuterAddRef();}
	STDMETHOD_(ULONG, Release)() {return OuterRelease();}
	STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject)
	{
		return _InternalQueryInterface(iid, ppvObject);
	}
	template <class Q>
	HRESULT STDMETHODCALLTYPE QueryInterface(Q** pp)
	{
		return QueryInterface(__uuidof(Q), (void**)pp);
	}

	//GetControllingUnknown may be virtual if the Base class has declared
	//DECLARE_GET_CONTROLLING_UNKNOWN()
	IUnknown* GetControllingUnknown()
	{
#ifdef _ATL_DEBUG_INTERFACES
		IUnknown* p;
		_Module.AddNonAddRefThunk(m_pOuterUnknown, _T("CComObjectEmbed"), &p);
		return p;
#else
		return m_pOuterUnknown;
#endif
	}
};


#endif /* !__COMOBJECTEMBED_H_ */