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The SBJ MVC Framework - The Design View, Responding to Model Change

, 19 Mar 2009
A Model-View-Controller Framework that integrates with the MFC Doc/View architecture.
SbjDevBin202.zip
XmlMvc2090.dll
Shapes.exe
SbjCore2090.dll
SbjDevSrc202.zip
SbjCore
res
bigcat.ico
main.bmp
properties.bmp
properties_hc.bmp
properties_wnd_hc.ico
Shapes
Data
res
buttons.bmp
filelarge.bmp
filesmall.bmp
filesmall.png
main.bmp
Shapes.ico
ShapesDoc.ico
Toolbar.bmp
Toolbar256.bmp
treeimages.bmp
Write - Copy.png
Write.png
Write1.png
writelarge.bmp
writesmall - Copy.bmp
writesmall - Copy.png
writesmall.bmp
writesmall.png
XmlMvc
res
CommonSettings.vsprops
CommonAppReleaseSettings.vsprops
CommonAppDebugSettings.vsprops
CommonDLLDebugSettings.vsprops
CommonDLLReleaseSettings.vsprops
//------------------------------------------------------------------------------
// $Workfile: MessageHandler.h $
// $Header:  $
//
//	Copyright � 2008 SbjCat
// All rights reserved.
//
//
// *** Authors ***
//	 Steve Johnson
//
// $Revision: $
//
//-----------------------------------------------------------------------------

#pragma once


namespace SbjCore
{
	namespace Mvc
	{
		
		class Controller;
		
		struct MessageHandlerImpl;
		
		/** 
		MessageHandler is the base class for Windows message handler 
		classes used in the Mvc framework. A Controller class adds an
		instance of a MessageHandler to its map of handlers keyed by 
		the message ID(s) they handle. Implementation of the actual 
		handling of messages is left for derived classes.

		In addition to providing a common base for the derived classes, 
		MessageHandler also maintains a link to any previous handler for
		its message ID that was added to the Controller.  This allows 
		derived Controllers to access handlers that were added to their 
		base classes. The Controller handles the assignment of the
		previous handler.  This is similar to the way MFC method based
		message handlers access base class handlers.

		*/
		class AFX_EXT_CLASS MessageHandler
		{
		public:
			MessageHandler();

			virtual ~MessageHandler(); 
		
		public:
			void Initialize(Controller* pCtrlr, MessageHandler* pPrevHandler);

		Controller* GetController() const;		

		protected:
			MessageHandler* GetPrevHandler() const;

		private:
			struct MessageHandlerImpl* const m_pImpl;
		};

	}
}

//*** Modification History ***
// $Log:  $

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

SBJ

United States United States
Real name is Steve Johnson. Programming since 1979. Started on a Heathkit Micro with a DEC LSI-11 and UCSD Pascal. Moved to PCs & DOS as soon as Turbo Pascal became available. Did some Assembly, ISR, TSR etc. All this while working for a Manufacturing Co. for 8 years. Had my own solo Co. doing barcode labeling software for 4 years (terrible business man, all I wanted to do was code). Since then working for various software companies. Moved to Windows around the time of 3.1 with Borland C then C++. Then on to VC++ and MFC, and just about anything I could get my hands on or had to learn for my job, and been at it ever since. Of course recently I've been playing with .NET, ASP, C#, WPF etc.

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