Win32控制台清屏方法

最后觉得项目中的控制台不大好用，就添加了一些小功能，比如清屏；当然最简单的方法是调用系统自带的函数system(“cls”);，这里提供一个方法一样可以清屏（测试要比cls快一些）：

 /* Standard error macro for reporting API errors */ 

 #define PERR(bSuccess, api){if(!(bSuccess)) printf("%s:Error %d from %s \ 

    on line %d\n", __FILE__, GetLastError(), api, __LINE__);}



 void cls( HANDLE hConsole )

 {

    COORD coordScreen = { 0, 0 };    /* here's where we'll home the

                                        cursor */ 

    BOOL bSuccess;

    DWORD cCharsWritten;

    CONSOLE_SCREEN_BUFFER_INFO csbi; /* to get buffer info */ 

    DWORD dwConSize;                 /* number of character cells in

                                        the current buffer */ 



    /* get the number of character cells in the current buffer */ 



    bSuccess = GetConsoleScreenBufferInfo( hConsole, &csbi );

    PERR( bSuccess, "GetConsoleScreenBufferInfo" );

    dwConSize = csbi.dwSize.X * csbi.dwSize.Y;



    /* fill the entire screen with blanks */ 



    bSuccess = FillConsoleOutputCharacter( hConsole, (TCHAR) ' ',

       dwConSize, coordScreen, &cCharsWritten );

    PERR( bSuccess, "FillConsoleOutputCharacter" );



    /* get the current text attribute */ 



    bSuccess = GetConsoleScreenBufferInfo( hConsole, &csbi );

    PERR( bSuccess, "ConsoleScreenBufferInfo" );



    /* now set the buffer's attributes accordingly */ 



    bSuccess = FillConsoleOutputAttribute( hConsole, csbi.wAttributes,

       dwConSize, coordScreen, &cCharsWritten );

    PERR( bSuccess, "FillConsoleOutputAttribute" );



    /* put the cursor at (0, 0) */ 



    bSuccess = SetConsoleCursorPosition( hConsole, coordScreen );

    PERR( bSuccess, "SetConsoleCursorPosition" );

    return;

 }