Largest screen buffer size?

This is a discussion on Largest screen buffer size? within the C Programming forums, part of the General Programming Boards category; When clearing the screen using the win32 console, with windows.h, there is a command called FillConsoleOutputCharacter and one of the ...

  1. #1
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    Largest screen buffer size?

    When clearing the screen using the win32 console, with windows.h, there is a command called FillConsoleOutputCharacter and one of the arguments is how many characters to output. I noticed that for my particular monitor 4000 spaces clears the screen perfect. However, the tutorial that taught me how to do this also told me that some monitors have a 5500 screen buffer size...I was just curious as to what is the largest screen buffer size possible, so that I won't make it too small if my program is running on someone else's computer.

    Either that, or a way to find out what size your screen buffer is...I've noticed that putting a higher number than what you need doesn't hurt anything, for instance, mine is 4000, but if I put 6000 it still works fine, so if I knew the largest possible, I'd just put that and know it would work fine on any comp....

    Thanks as always, Ash

  2. #2
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    Code:
    HANDLE hConsole;
        DWORD  dwNumberCharsWritten = 0;
        CONSOLE_SCREEN_BUFFER_INFO Console_Screen_Buffer_Info;
        COORD TopLeft = {0, 0};
    
        hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
        GetConsoleScreenBufferInfo(hConsole, &Console_Screen_Buffer_Info);   
        FillConsoleOutputCharacter(hConsole, ' ', 
            Console_Screen_Buffer_Info.dwSize.X * Console_Screen_Buffer_Info.dwSize.Y, TopLeft, &dwNumberCharsWritten);
        SetConsoleCursorPosition(hConsole, TopLeft);

  3. #3
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    thanks, you rock!

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