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       public Form1()
        {
            InitializeComponent();
           // Doublebuffering einschalten
            this.SetStyle(
              ControlStyles.AllPaintingInWmPaint |
             ControlStyles.UserPaint |
             ControlStyles.DoubleBuffer, true);
             this.timer1.Interval = 20;

        }                    

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        private void panel1_Paint(object sender, PaintEventArgs e)
        {
            Panel p = (Panel)sender;
            Graphics g = e.Graphics;
 
            int pCount = points.Count;

            
            int PanelHeight = p.Height;
            int PanelWidth = p.Width;
            int ClientHeight = p.ClientRectangle.Height;
            int ClientWidth = p.ClientRectangle.Width;
            float ClipHeight = g.ClipBounds.Height;
            float ClipWidth = g.ClipBounds.Width;
            int eClipLeft = e.ClipRectangle.Left;
            int eClipRight = e.ClipRectangle.Right;
            Point asPosition = p.AutoScrollPosition;

            int xBegin; // Beginn des Daten-Ausschnitt
            int xEnd;   // Ende des Zeichen-Bereiches
            xBegin   = - asPosition.X + 1;
            xEnd     =  eClipRight > pCount ? pCount :  eClipRight;

            GraphicsPath gp = new GraphicsPath();
            for (int x = 1; x < xEnd; x++)
            {
                gp.AddLine(x - 1, points[xBegin - 1] * yScale * mAmpScale, x, points[xBegin] * yScale * mAmpScale);
                if ((xBegin % 100) == 0)
                {
                    g.DrawString(xBegin.ToString(), pFont, bECG, (float)x, 10.0f);
                }
                xBegin++;
            }
            g.DrawPath(pECG, gp);
            p.AutoScrollMinSize = new Size(pCount , PanelHeight);

/*  Macht das ganze noch schlimmer
            g.DrawLine(pTest, 0, 0, PanelWidth, PanelHeight);
            g.DrawLine(pTest, 0, PanelHeight, PanelWidth, 0);
*/

            if (bScroll)
            {
                p.AutoScrollPosition = new Point(pCount - p.Width, p.AutoScrollPosition.Y);
            }
            // gp.Dispose();
            // g.Dispose();
        }