将win32程序封装成MFC框架

/////////////////////////////////////////////////////////////////////////// ////// 本程序实现对windows程序的封装，使其类似MFC框架 ////////// /////////////////////////////////////////////////////////////////////////// //说明：添加消息响应函数步骤:1，在CView类中声明；2，在CView类外定义；3，在CView类的msgMap映射表内添加映射。 //其他对客户区界面的操作，均可在CView类内添加相应的函数来实现 #include "windows.h" #include "resource.h" //定义全局变量和函数 HINSTANCE hInst; HINSTANCE hInstance; MSG msg; char lpszClassName[]="hehe"; char *ShowText; //定义消息映射结构体 struct tagMsgMap{ UINT uMsgID; LRESULT (CALLBACK* lpfnProc)(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam); }; //定义消息映射数组 tagMsgMap myMsgMap[20]; //声明消息响应函数 LRESULT CALLBACK WndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam); LRESULT CALLBACK OnLButtonDown(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam); LRESULT CALLBACK OnPaint(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam); LRESULT CALLBACK OnDestroy(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam); //声明窗口类 class CFrameWnd { public: HWND hWnd; public: int RegisterWindow(); void Create(LPCTSTR lpClassName,LPCTSTR lpWindowName); void ShowWindow(int nCmdShow); void UpdateWindow(); }; //类中的函数 int CFrameWnd::RegisterWindow() { WNDCLASS wndclass; wndclass.style=0; wndclass.lpfnWndProc=WndProc; wndclass.cbClsExtra=0; wndclass.cbWndExtra=0; wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION); wndclass.hCursor=LoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.lpszMenuName="hMenu"; wndclass.lpszClassName=lpszClassName; return RegisterClass(&wndclass); } void CFrameWnd::Create(LPCTSTR lpClassName,LPCTSTR lpWindowName) { RegisterWindow(); hInst=hInstance; HMENU hMenu; hMenu=LoadMenu(hInstance,(LPCSTR)IDR_MENU1); hWnd=CreateWindow(lpszClassName, lpWindowName, WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, 0,CW_USEDEFAULT,0,NULL,hMenu,hInstance,NULL); } void CFrameWnd::ShowWindow(int nCmdShow) { ::ShowWindow(hWnd,nCmdShow); } void CFrameWnd::UpdateWindow() { ::UpdateWindow(hWnd); } //声明应用程序类 class CWinApp { public: CFrameWnd *m_pMainWnd; CWinApp *m_pCurrentWnd; public: CWinApp(); ~CWinApp(); virtual BOOL InitInstance(int nCmdShow); int Run(); }; CWinApp::CWinApp() { m_pCurrentWnd=this; } CWinApp::InitInstance(int nCmdShow) { m_pMainWnd=new CFrameWnd; m_pMainWnd->Create(NULL,"Windows程序"); m_pMainWnd->ShowWindow(nCmdShow); m_pMainWnd->UpdateWindow(); return TRUE; } int CWinApp::Run() { while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } CWinApp::~CWinApp() { delete m_pMainWnd; } //声明窗口类CView作为CFrameWnd的派生类,该部分主要针对客户区窗口的管理 class CView:public CFrameWnd { public: void msgMap(); }; void CView::msgMap() { myMsgMap[0].uMsgID=WM_DESTROY; myMsgMap[0].lpfnProc=OnDestroy; myMsgMap[1].uMsgID=WM_PAINT; myMsgMap[1].lpfnProc=OnPaint; myMsgMap[2].uMsgID=WM_LBUTTONDOWN; myMsgMap[2].lpfnProc=OnLButtonDown; } //声明应用程序类CWinApp派生类 class CMyApp:public CWinApp { public: BOOL InitInstance(int nCmdShow); }; CMyApp::InitInstance(int nCmdShow) { CView *pMainWnd; pMainWnd=new CView; pMainWnd->Create(NULL,"派生类Windows程序"); pMainWnd->ShowWindow(nCmdShow); pMainWnd->UpdateWindow(); pMainWnd->msgMap(); return TRUE; } //构造CMyApp类对象 CMyApp myApp; //重写AfxGetApp()函数 CWinApp *AfxGetApp() { return myApp.m_pCurrentWnd; } //WinMain int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow) { int rt; CMyApp *pApp=(CMyApp *)AfxGetApp(); pApp->InitInstance(nCmdShow); rt=pApp->Run(); return rt; } //窗口函数 LRESULT CALLBACK WndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam) { for(int i=0;i<sizeof(myMsgMap)/sizeof(myMsgMap[0]);i++) if(message==myMsgMap[i].uMsgID) return (*myMsgMap[i].lpfnProc)(hWnd,message,wParam,lParam);//调用相应的处理函数 return DefWindowProc(hWnd,message,wParam,lParam); /*switch(message) { case WM_LBUTTONDOWN:OnLButtonDown(hWnd,message,wParam,lParam); break; case WM_PAINT:OnPaint(hWnd,message,wParam,lParam); break; case WM_DESTROY:OnDestroy(hWnd,message,wParam,lParam); break; default:return DefWindowProc(hWnd,message,wParam,lParam); } return 0;*/ } //消息响应函数 LRESULT CALLBACK OnLButtonDown(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam) { ShowText="面向对象的封装性"; InvalidateRect(hWnd,NULL,1); return 0l; } //刷新消息 LRESULT CALLBACK OnPaint(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam) { PAINTSTRUCT ps; HDC hdc; hdc=BeginPaint(hWnd,&ps); TextOut(hdc,150,150,ShowText,16); EndPaint(hWnd,&ps); return 0l; } //关闭消息 LRESULT CALLBACK OnDestroy(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam) { PostQuitMessage(0); return 0l; }