VC++面向对象可视化编程创建窗口及填充-报告.doc

VC+面向对象可视化编程创建窗口及填充-报告一.实验目的：理解如何创建窗口及其填充，认识创建窗口的函数。二.实验内容：1. 创建窗口：程序代码 #include /包含应用程序中所需的数据类型和数据结构的定义LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); /窗口函数说明/- 以下初始化窗口类 -int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInst,LPSTR lpszCmdLine,int nCmdShow) HWND hwnd ; MSG Msg ; WNDCLASS wndclass ; char lpszClassName = 窗口; /窗口类名 char lpszTitle= 昆工; /窗口标题名/窗口类的定义wndclass.style=0; /窗口类型为默认类型wndclass.lpfnWndProc=WndProc; /定义窗口处理函数wndclass.cbClsExtra=0; /窗口类无扩展wndclass.cbWndExtra=0; /窗口实例无扩展wndclass.hInstance=hInstance; /当前实例句柄wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);/窗口的最小化图标为默认图标wndclass.hCursor=LoadCursor(NULL,IDC_ARROW) ; /窗口采用箭头光标wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);/窗口背景为白色wndclass.lpszMenuName=NULL; /窗口中无菜单wndclass.lpszClassName=lpszClassName ;/窗口类名为窗口if(!RegisterClass( &wndclass)/如果注册失败则发出警告 MessageBeep(0) ; return FALSE ; hwnd=CreateWindow ( lpszClassName, /窗口类名 lpszTitle, /窗口实例的标题名 WS_OVERLAPPEDWINDOW, /窗口的风格 CW_USEDEFAULT, CW_USEDEFAULT, /窗口左上角坐标为默认值 CW_USEDEFAULT, CW_USEDEFAULT, /窗口的高和宽为默认值 NULL, /此窗口无父窗口 NULL, /此窗口无主菜单 hInstance, /创建此窗口的应用程序的当前句柄 NULL , /不使用该值 );ShowWindow( hwnd, nCmdShow) ;UpdateWindow(hwnd);while( GetMessage(&Msg, NULL, 0, 0) TranslateMessage( &Msg) ; DispatchMessage( &Msg) ; return Msg.wParam; /消息循环结束即程序终止时将信息返回系统LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam ) switch(message) case WM_DESTROY: PostQuitMessage(0); default: /默认时采用系统消息默认处理函数 return DefWindowProc(hwnd,message,wParam,lParam); return(0);结果：出现一个名为“昆工”的白色窗口2. 字符填充：程序代码：#include#include#includelong WINAPI WndProc( HWND hWnd, UINT iMessage, UINT wParam, LONG lParam );BOOL InitWindowsClass(HINSTANCE hInstance);BOOL InitWindows(HINSTANCE hInstance,int nCmdShow);HWND hWndMain;/主函数int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) MSG Message; if(!InitWindowsClass(hInstance) return FALSE; if(!InitWindows(hInstance,nCmdShow)return FALSE; while(GetMessage(&Message,0,0,0)/消息循环 TranslateMessage(&Message); DispatchMessage(&Message); return Message.wParam;/消息处理函数long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam) static long nXChar,nCaps,nYChar; HDC hDC; /定义指向设备上下文的句柄 short x; TEXTMETRIC tm; short LnCount=6; PAINTSTRUCT PtStr; /定义指向包含绘图信息的结构体变量 static char *textbuf= 昆明理工大学, ;switch(iMessage) /处理消息case WM_CREATE: /处理窗口创建消息 hDC=GetDC(hWnd) ; /获取当前设备表句柄 GetTextMetrics(hDC,&tm); /获取字体信息 nXChar=tm.tmAveCharWidth; /获取字符宽度 nYChar=tm.tmHeight+tm.tmExternalLeading; nCaps=(tm.tmPitchAndFamily&1?3:2)*nXChar/2; ReleaseDC(hWnd,hDC); /释放当前设备句柄 return 0; case WM_PAINT: /处理重画消息 hDC=BeginPaint(hWnd,&PtStr); /开始绘画 for(x=0;xLnCount;x=x+1) /输出文本 TextOut(hDC,nXChar,nYChar*(1+x),textbufx,lstrlen(textbufx); EndPaint(hWnd,&PtStr); return 0; case WM_DESTROY: /结束应用程序 PostQuitMessage(0); return 0; default: /其他消息处理程序 return(DefWindowProc(hWnd,iMessage,wParam,lParam) ;BOOL InitWindows(HINSTANCE hInstance,int nCmdShow)/初始化窗口 HWND hWnd; hWnd=CreateWindow(WinFill, /生成窗口 昆工, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if(!hWnd) return FALSE; hWndMain=hWnd; ShowWindow(hWnd,nCmdShow); /显示窗口 UpdateWindow(hWnd); return TRUE;BOOL InitWindowsClass(HINSTANCE hInstance) /定义窗口类WNDCLASS WndClass;WndClass.cbClsExtra=0;WndClass.cbWndExtra=0;WndClass.hbrBackground=(HBRUSH)(GetStockObject(WHITE_BRUSH);WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);WndClass.hIcon=LoadIcon(NULL,END);WndClass.hInstance=hInstance;WndClass.lpfnWndProc=WndProc;WndClass.lpszClassName=WinFill;WndClass.lpszMenu