SP Numeric Edit Control

/////////////////////////////////////////////////////////////////////////////////////////
//	Project:		SP ATL Extensions 1.3
//
//	File:			spComOwnedObject.h
//
//	Developer(s):	Sergei Pavlovsky
//					sergei_vp@hotmail.com
//					Copyright (c) 2004-2005
//
//	Description:	Declaration of the CComOwnedObject class template.
//
//	Platforms:		Win32, ATL
//
//	This code may be used in compiled form in any way you desire. This file may be 
//	redistributed unmodified by any means PROVIDING it is not sold for profit without 
//	the authors written consent, and providing that this notice and the authors name 
//	is included. If the source code in this file is used in any commercial application 
//	then acknowledgement must be made to the author of this file (in whatever form 
//	you wish).
//
//	This file is provided "as is" with no expressed or implied warranty. The author 
//	accepts no liability for any damage/loss of business that this product may cause.
/////////////////////////////////////////////////////////////////////////////////////////

#pragma once

namespace SP
{

/////////////////////////////////////////////////////////////////////////////////////////
// CComOwnedObject class templat
/////////////////////////////////////////////////////////////////////////////////////////

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

// Construction & destruction
public:
	CComOwnedObject(IUnknown* piOwner) 
	{
		ATLASSERT( piOwner );

		m_pOuterUnknown = piOwner;
	}

#ifdef _ATL_DEBUG_INTERFACES
	virtual ~CComOwnedObject()
	{
		_AtlDebugInterfacesModule.DeleteNonAddRefThunk(_GetRawUnknown());
		_AtlDebugInterfacesModule.DeleteNonAddRefThunk(m_pOuterUnknown);
	}
#endif

// Implementation: IUnknowm
public:
	STDMETHOD_(ULONG, AddRef)() throw() 
	{
		return OuterAddRef();
	}

	STDMETHOD_(ULONG, Release)() throw() 
	{
		return OuterRelease();
	}

	STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject) throw()
	{
		return _InternalQueryInterface(iid, ppvObject);
	}

	template <class Q>
	HRESULT STDMETHODCALLTYPE QueryInterface(Q** pp)
	{
		return QueryInterface(__uuidof(Q), (void**)pp);
	}

// Accessors 
public:
	IUnknown* GetOwnerUnknown() throw()
	{
#ifdef _ATL_DEBUG_INTERFACES
		IUnknown* p;
		_AtlDebugInterfacesModule.AddNonAddRefThunk(m_pOuterUnknown, _T("CComContainedObject"), &p);
		return p;
#else
		return m_pOuterUnknown;
#endif
	}
};

}; // namespace SP