VC++中实现清屏

 方法一：直接在程序中调用cmd命令

1 #include   <stdlib.h>   
2    
3  void   main()   
4  {   
5        system("cls");   
6  }


方法二：通过API，自己封装函数

   
 HANDLE   hConsole   =   GetStdHandle(STD_OUTPUT_HANDLE);  
 cls(   hConsole   );  
 CloseHandle(   hConsole   );  
   
 #define   PERR(bSuccess,   api){if(!(bSuccess))   printf("%s:Error   %d   from   %s   on   line   %d\n",   __FILE__,   GetLastError(),   api,   __LINE__);}  
   
   
 

 1 void   cls(   HANDLE   hConsole   )   
 2   {   
 3          COORD   coordScreen   =   {   0,   0   };         /*  定义光标的位置*/     
 4          BOOL   bSuccess;   
 5          DWORD   cCharsWritten;   
 6          CONSOLE_SCREEN_BUFFER_INFO   csbi;   /*  获取缓冲区信息 */     
 7          DWORD   dwConSize;                /*   当前缓冲区的字符数 */     
 8    
 9          /*   获取当前缓冲区的字符数  */     
10    
11          bSuccess   =   GetConsoleScreenBufferInfo(   hConsole,   &csbi   );   
12          PERR(   bSuccess,   "GetConsoleScreenBufferInfo"   );   
13          dwConSize   =   csbi.dwSize.X   *   csbi.dwSize.Y;   
14    
15          /*   用空格填充整个屏幕   */     
16    
17          bSuccess   =   FillConsoleOutputCharacter(   hConsole,   (TCHAR)   '   ',   
18                dwConSize,   coordScreen,   &cCharsWritten   );   
19          PERR(   bSuccess,   "FillConsoleOutputCharacter"   );   
20    
21          /*   获取当前文本属性   */     
22    
23          bSuccess   =   GetConsoleScreenBufferInfo(   hConsole,   &csbi   );   
24          PERR(   bSuccess,   "ConsoleScreenBufferInfo"   );   
25    
26          /*   相应地设置缓冲区属性  */     
27    
28          bSuccess   =   FillConsoleOutputAttribute(   hConsole,   csbi.wAttributes,   
29                dwConSize,   coordScreen,   &cCharsWritten   );   
30          PERR(   bSuccess,   "FillConsoleOutputAttribute"   );   
31    
32          /*   把光标放在(0,0)   */     
33    
34          bSuccess   =   SetConsoleCursorPosition(   hConsole,   coordScreen   );   
35          PERR(   bSuccess,   "SetConsoleCursorPosition"   );   
36          return;   
37    }

 

posted @ 2012-03-26 09:24  tiredoy  阅读(589)  评论(0)  编辑  收藏  举报