Clearing the console window in c#

how do you clear the console window in c#?

http://www.vbforums.com/showthread.php?threadid=269366

:wave:

Dead easy (if you already know the code, otherwise it a tough one).

I have the code at work and I'll post it here tomorrow, but if you cant wait that long, go to

http://support.microsoft.com/default...b;en-us;319257

and use the code they have there. It works fine.

Sorry, I completely forgot.

Paste this into a new class file and create an instance of it from your main program then call its Clear() method.

Code:

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//from Microsoft website

using System;
using System.Runtime.InteropServices;

namespace AWEngLib
{
        public class ClearConsole
        {               
                private const int STD_OUTPUT_HANDLE  = -11;
                private const byte EMPTY = 32;

                [StructLayout(LayoutKind.Sequential)]
                struct COORD
                {
                        public short x;
                        public short y;
                }

                [StructLayout(LayoutKind.Sequential)]
                struct SMALL_RECT
                {
                        public short Left;
                        public short Top;
                        public short Right;
                        public short Bottom;
                }
                               
                [StructLayout(LayoutKind.Sequential)]
                struct        CONSOLE_SCREEN_BUFFER_INFO
                {
                        public COORD dwSize;
                        public COORD dwCursorPosition;
                        public int wAttributes;
                        public SMALL_RECT srWindow;
                        public COORD dwMaximumWindowSize;
                }

                [DllImport("kernel32.dll", EntryPoint="GetStdHandle", SetLastError=true, CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
                private static extern int GetStdHandle(int nStdHandle);

                [DllImport("kernel32.dll", EntryPoint="FillConsoleOutputCharacter", SetLastError=true, CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
                private static extern int FillConsoleOutputCharacter(int hConsoleOutput, byte cCharacter, int nLength, COORD dwWriteCoord, ref int lpNumberOfCharsWritten);

                [DllImport("kernel32.dll", EntryPoint="GetConsoleScreenBufferInfo", SetLastError=true, CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
                private static extern int GetConsoleScreenBufferInfo(int hConsoleOutput, ref CONSOLE_SCREEN_BUFFER_INFO lpConsoleScreenBufferInfo);

                [DllImport("kernel32.dll", EntryPoint="SetConsoleCursorPosition", SetLastError=true, CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
                private static extern int SetConsoleCursorPosition(int hConsoleOutput, COORD dwCursorPosition);

                private int hConsoleHandle;

                public ClearConsole() //Constructor
                {
                        hConsoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
                }

                public void Clear()
                {
                        int hWrittenChars = 0;
                        CONSOLE_SCREEN_BUFFER_INFO strConsoleInfo = new CONSOLE_SCREEN_BUFFER_INFO();                       
                        COORD Home;               
                        Home.x = Home.y = 0;
                        GetConsoleScreenBufferInfo(hConsoleHandle, ref strConsoleInfo);
                        FillConsoleOutputCharacter(hConsoleHandle, EMPTY, strConsoleInfo.dwSize.x * strConsoleInfo.dwSize.y, Home, ref hWrittenChars);
                        SetConsoleCursorPosition(hConsoleHandle, Home);
                }
        }
}

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