哎,想不明白,用vs创建的win32project 选的windows application,弹出一个dialog不响应消息 ,该如何解决

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

 #include "stdafx.h" 
 #include "My_SE.h" 

 #define MAX_LOADSTRING 100 

 // Global Variables: 
 HINSTANCE hInst;								// current instance 
 TCHAR szTitle[MAX_LOADSTRING];					// The title bar text 
 TCHAR szWindowClass[MAX_LOADSTRING];			// the main window class name 

 // Forward declarations of functions included in this code module: 
 ATOM				MyRegisterClass(HINSTANCE hInstance); 
 BOOL				InitInstance(HINSTANCE, int); 
 LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM); 
 INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM); 
 INT_PTR CALLBACK	Dialog1(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. 
 	MSG msg; 
 	HACCEL hAccelTable; 

 	// Initialize global strings 
 	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); 
 	LoadString(hInstance, IDC_MY_SE, szWindowClass, MAX_LOADSTRING); 
 	MyRegisterClass(hInstance); 

 	// Perform application initialization: 
 	if (!InitInstance (hInstance, nCmdShow)) 
 	{ 
 		return FALSE; 
 	} 

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

 	// Main message loop: 
 	while (GetMessage(&msg, NULL, 0, 0)) 
 	{ 
 		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
 		{ 
 			TranslateMessage(&msg); 
 			DispatchMessage(&msg); 
 		} 
 	} 

 	return (int) msg.wParam; 
 } 


 // 
 //  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_MY_SE)); 
 	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW); 
 	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1); 
 	wcex.lpszMenuName	= MAKEINTRESOURCE(IDC_MY_SE); 
 	wcex.lpszClassName	= szWindowClass; 
 	wcex.hIconSm		= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); 

 	return RegisterClassEx(&wcex); 
 } 

 // 
 //   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.