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using System;
using System.Runtime.InteropServices;
// Klasse zum löschen des Konsoleninhalt
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()
{
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);
}
}
// Beispielafruf:
// ClearConsole clearCon = new ClearConsole();
// clearCon.Clear();
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