出学Windows编程相对Win32的结构进行重构，出错？求救

// Win32Project.cpp : Defines the entry point for the application.

//客户端



#include "stdafx.h"

#include "Win32Project.h"

#include "MyApplication.h"



// Forward declarations of functions included in this code module:

INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);



int APIENTRY _tWinMain(HINSTANCE hInstance,

	HINSTANCE hPrevInstance,

	LPTSTR    lpCmdLine,

	int       nCmdShow)

{



	UNREFERENCED_PARAMETER(hPrevInstance);

	UNREFERENCED_PARAMETER(lpCmdLine);



	// TODO: Place code here.



	MyApplication myApp ;



	// Perform application initialization:

	if (! myApp.Initialize( hInstance,nCmdShow))

	{

		return  FALSE;

	}



	myApp.Run();



	return (int) (MainWindow::GetInstance()->GetMSG().wParam);

}



/////////////////////////////////////////////////////////////////////////



//#pragma once

#include "stdafx.h"

#include "MainWindow.h"



class MyApplication

{

public:

	MyApplication(void);

	~MyApplication(void);



	BOOL Initialize(HINSTANCE hInstance, int nCmdShow);  //初始化

	void Run(void);                                      //run(),运行



};



//////////////////////////////////////////////////////////////////////////

#include "StdAfx.h"

#include "MyApplication.h"



MyApplication::MyApplication(void)

{

}



BOOL MyApplication::Initialize(HINSTANCE hInstance, int nCmdShow)

{

	if( ! MainWindow::GetInstance()->Initialize(hInstance, nCmdShow)  )

	{

		return FALSE;

	}

		return TRUE;

}



void MyApplication::Run(void)

{

	MSG msg = (MainWindow::GetInstance()->GetMSG());

	// Main message loop:

	while (GetMessage(&msg, NULL, 0, 0))

	{

		if (!TranslateAccelerator(msg.hwnd, MainWindow::GetInstance()->GetHACCEL(), &msg))

		{

			TranslateMessage(&msg);

			DispatchMessage(&msg);

		}

	}



}



MyApplication::~MyApplication(void)

{

	MainWindow::Release();

}

//////////////////////////////////////////////////////////////////////////////////////////////



#pragma once

#include "stdafx.h"

#include "resource.h"



#define MAX_LOADSTRING 100

static TCHAR szTitle[MAX_LOADSTRING];					// The title bar text

static TCHAR szWindowClass[MAX_LOADSTRING];			    // the main window class name



class MainWindow

{

public:

	MainWindow(void);

	~MainWindow(void);



	BOOL                Initialize(HINSTANCE, int);               //总初始化函数        

	BOOL				InitInstance(HINSTANCE, int);             //Win32自带的初始化（Saves instance handle and creates main window）

    ATOM				MyRegisterClass(HINSTANCE hInstance);     //Win32自带的注册窗口类

	static LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);  //窗口过程



	MSG& GetMSG(void) { return msg;}                               

	HACCEL GetHACCEL(void) { return hAccelTable; }



	static MainWindow* GetInstance()              //获得静态实例

	{

		if(m_pMainWindow == NULL)

		{

			m_pMainWindow = new MainWindow();

		}

		return m_pMainWindow;

	}



	static void Release(void)                    //释放静态实例资源

	{

		if(m_pMainWindow != NULL)

		{

			delete m_pMainWindow ;

			m_pMainWindow = NULL;

		}

	}



private:

	static MainWindow* m_pMainWindow;                       //静态实例声明

	HINSTANCE hInst;								        // current instance

	MSG msg;                                                //消息

	HACCEL hAccelTable;                                     //加速键，快捷键？

};



//////////////////////////////////////////////////////////////////////////////////////////////////////////////



#include "StdAfx.h"

#include "MainWindow.h"



 MainWindow* MainWindow::m_pMainWindow = 0;



MainWindow::MainWindow(void)

{

	hInst = NULL;

	//msg   = NULL;

	hAccelTable = NULL;

}





MainWindow::~MainWindow(void)

{

}



BOOL MainWindow::Initialize(HINSTANCE hInstance, int nCmdShow)

{

	// Initialize global strings

	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);

	LoadString(hInstance, IDC_WIN32PROJECT, szWindowClass, MAX_LOADSTRING);



	MyRegisterClass(hInstance);



	if( !InitInstance(hInstance,  nCmdShow))

	{

		return FALSE;

	}



	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WIN32PROJECT));



	return TRUE;

}

//

//   FUNCTION: InitInstance(HINSTANCE, int)

//

//   PURPOSE: Saves instance handle and creates main window

//

//   COMMENTS:

//

//        In this function, we save the instance handle in a global variable and

//        create and display the main program window.

//

BOOL MainWindow::InitInstance(HINSTANCE hInstance, int nCmdShow)

{

	HWND hWnd;



	hInst = hInstance; // Store instance handle in our global variable



	hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,

		CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);



	if (!hWnd)

	{

		return FALSE;

	}



	ShowWindow(hWnd, nCmdShow);

	UpdateWindow(hWnd);



	return TRUE;

}



//

//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)

//

//  PURPOSE:  Processes messages for the main window.

//

//  WM_COMMAND	- process the application menu

//  WM_PAINT	- Paint the main window

//  WM_DESTROY	- post a quit message and return

//

//

static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

	int wmId, wmEvent;

	PAINTSTRUCT ps;

	HDC hdc;



	switch (message)

	{

	case WM_COMMAND:

		wmId    = LOWORD(wParam);

		wmEvent = HIWORD(wParam);

		// Parse the menu selections:

		switch (wmId)

		{

		case IDM_ABOUT:

		//	DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);

			break;

		case IDM_EXIT:

			DestroyWindow(hWnd);

			break;

		default:

			return DefWindowProc(hWnd, message, wParam, lParam);

		}

		break;

	case WM_PAINT:

		hdc = BeginPaint(hWnd, &ps);

		// TODO: Add any drawing code here...

		EndPaint(hWnd, &ps);

		break;

	case WM_DESTROY:

		PostQuitMessage(0);

		break;

	default:

		return DefWindowProc(hWnd, message, wParam, lParam);

	}

	return 0;

}





//

//  FUNCTION: MyRegisterClass()

//

//  PURPOSE: Registers the window class.

//

//  COMMENTS:

//

//    This function and its usage are only necessary if you want this code

//    to be compatible with Win32 systems prior to the 'RegisterClassEx'

//    function that was added to Windows 95. It is important to call this function

//    so that the application will get 'well formed' small icons associated

//    with it.

//

ATOM MyRegisterClass(HINSTANCE hInstance)

{

	WNDCLASSEX wcex;



	wcex.cbSize = sizeof(WNDCLASSEX);



	wcex.style			= CS_HREDRAW | CS_VREDRAW;

	wcex.lpfnWndProc	= WndProc;

	wcex.cbClsExtra		= 0;

	wcex.cbWndExtra		= 0;

	wcex.hInstance		= hInstance;

	wcex.hIcon			= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WIN32PROJECT));

	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);

	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);

	wcex.lpszMenuName	= MAKEINTRESOURCE(IDC_WIN32PROJECT);

	wcex.lpszClassName	= szWindowClass;

	wcex.hIconSm		= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));



	return RegisterClassEx(&wcex);

}



// Message handler for about box.

INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)

{

	UNREFERENCED_PARAMETER(lParam);

	switch (message)

	{

	case WM_INITDIALOG:

		return (INT_PTR)TRUE;



	case WM_COMMAND:

		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)

		{

			EndDialog(hDlg, LOWORD(wParam));

			return (INT_PTR)TRUE;

		}

		break;

	}

	return (INT_PTR)FALSE;

}

/////////////////////////////////////////////////////////////////////////////////////



//小弟刚学，希望各位高手教一下。