How to write clrscr() in Visual Studio 2008/2010 ?

Question: How to write clrscr() in Visual Studio 2008/2010 ?

Answer

Using the system function;

#include <stdlib.h>
#include <windows.h>
void main()
{ system("cls"); }
 
/* 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;
 }
 

Refhttp://support.microsoft.com/kb/99261

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About Firat Karakusoglu

IIT Tech.

One response to “How to write clrscr() in Visual Studio 2008/2010 ?

  1. Benjamin Valiente

    ¡Muchas gracias por la info!

    Thanks for the info!

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