为什么窗口会一闪而过？？？？？（我是初学者）

#   include   <windows.h>  
  LRESULT   CALLBACK   WndProc(HWND,UINT,WPARAM,LPARAM);  
  HWND   hwnds[7];  
  char   cText[50];  
  int   APIENTRY   WinMain(HINSTANCE   hInstance,HINSTANCE   hPrevInstance,LPSTR   lpCmdLine,int   nShowCmd)  
  {  
  WNDCLASS   wndclass;  
  MSG   msg;  
  wndclass.style   =CS_HREDRAW|CS_VREDRAW;  
  wndclass.lpfnWndProc   =WndProc;  
  wndclass.cbClsExtra   =0;  
  wndclass.cbWndExtra   =0;  
  wndclass.hInstance   =hInstance;  
  wndclass.hIcon   =LoadIcon(NULL,IDI_APPLICATION);  
  wndclass.hCursor   =LoadCursor(NULL,IDC_ARROW);  
  wndclass.hbrBackground   =(HBRUSH)GetStockObject(WHITE_BRUSH);  
  wndclass.lpszMenuName   =NULL;  
  wndclass.lpszClassName   ="CEx11_1";  
  if(!RegisterClass(&wndclass))   return   FALSE;  
  hwnds[0]=CreateWindow("CEx11_1",NULL,WS_OVERLAPPEDWINDOW,0,0,300,200,NULL,NULL,hInstance,NULL);  
  hwnds[1]=CreateWindow("CEx11_1",NULL,WS_OVERLAPPEDWINDOW,10,40,300,200,hwnds[0],NULL,hInstance,NULL);  
  hwnds[2]=CreateWindow("CEx11_1",NULL,WS_OVERLAPPEDWINDOW|WS_CHILD,10,20,300,200,hwnds[1],NULL,hInstance,NULL);  
  hwnds[3]=CreateWindow("CEx11_1",NULL,WS_OVERLAPPEDWINDOW|WS_CHILD,10,20,300,200,hwnds[2],NULL,hInstance,NULL);  
  hwnds[4]=CreateWindow("CEx11_1",NULL,WS_POPUPWINDOW|WS_CAPTION,56,170,300,200,hwnds[1],NULL,hInstance,NULL);  
  hwnds[5]=CreateWindow("CEx11_1",NULL,WS_POPUPWINDOW|WS_CAPTION,70,210,300,200,hwnds[3],NULL,hInstance,NULL);  
  hwnds[6]=CreateWindow("CEx11_1",NULL,WS_OVERLAPPEDWINDOW|WS_CHILD,10,20,300,200,hwnds[5],NULL,hInstance,NULL);  
  for(int   i=0;i<7;i++)  
  {  
  wsprintf(cText,"hwnds[%d]=%d",i,hwnds[i]);  
  SetWindowText(hwnds[i],cText);  
  ShowWindow(hwnds[i],SW_SHOWNORMAL);  
  }  
  while(GetMessage(&msg,NULL,0,0))  
  {  
  TranslateMessage(&msg);  
  DispatchMessage(&msg);  
  }  
  return   msg.wParam   ;  
  }  
  LRESULT   CALLBACK   WndProc(HWND   hwnd,UINT   message,WPARAM   wParam,LPARAM   lParam)  
  {  
  switch(message)  
  {  
  case   WM_PAINT:  
  HDC   hdc;  
  PAINTSTRUCT   ps;  
  hdc=BeginPaint(hwnd,&ps);  
  wsprintf(cText,"Parent=%d,Child=%d,Owner=%d",GetParent(hwnd),GetWindow(hwnd,GW_CHILD),GetWindow(hwnd,GW_OWNER));  
  TextOut(hdc,0,0,cText,strlen(cText));  
  EndPaint(hwnd,&ps);  
  case   WM_DESTROY:    
  if(hwnd==hwnds[0])  
  PostQuitMessage(0);  
  return   0;  
  }  
  return   DefWindowProc(hwnd,message,wParam,lParam);  
  } 问题点数：20、回复次数：3Top

1 楼bighead（bighead1997）回复于 2001-12-30 21:20:33 得分 20

case   WM_PAINT:  
  HDC   hdc;  
  ...............  
  EndPaint(hwnd,&ps);  
  //---     鸟人，这儿少了一个break;   低级错误  
  case   WM_DESTROY:    
  ..............Top

2 楼wangzn1979（梦郎2003）回复于 2001-12-30 21:25:02 得分 0

楼上的回答真精彩  
   
  case语句怎么会没有break呢?Top

3 楼sharkillfish（Fishbaby）回复于 2001-12-30 21:26:59 得分 0

我尻，大哥你好厉害。原来我的书上也少了一个break；我看了一下，我书上的这些窗口函数，每个case结束都没有break；那不是都做下去拉。。。。。。。Top

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