How I can do recursive method with keyeventargs (up,down)

Question

SierpinskiCarpet(Graphics g, Brush brush, Single x, Single y, Single width, Single height, int Iteration)

Answer 1

using System;

using System.Drawing;

using System.Windows.Forms;

namespace Aufgabe3

{

    public class Sierpinski : Form

    {

        public Sierpinski()

        {

            Width = 600;

            Height = 600;

            Text = "Sierpinski-Teppich";

        }

        static void Main()

        {

            Application.Run(new Sierpinski());

        }

        protected override void OnPaint(PaintEventArgs e)

        {

            RectangleF bounds = e.Graphics.VisibleClipBounds;

            Graphics g = e.Graphics;

            SierpinskiTeppich(g,Brushes.Yellow,0,0,600,600,0);                      // Das weis ich nicht obs richtig ist...

        }

        private void SierpinskiTeppich(Graphics g, Brush brush, Single x, Single y, Single width, Single height, int iteration)

        {

            if (iteration == 0)                                                               // von hier bis...

            {

                g.FillRectangle(Brushes.Blue,x,y,width,height);