C#

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
 
class FlipExample : Form
{
  static void Main()
  {
    Application.Run(new FlipExample());
  }
 
  RectangleF left;
  RectangleF right;
  PointF[] triangle;
  StringFormat format;
  Matrix flipTransform;
 
  FlipExample()
  {
    Text = "Flip Example";
    SetStyle(ControlStyles.AllPaintingInWmPaint |
      ControlStyles.DoubleBuffer | ControlStyles.ResizeRedraw |
      ControlStyles.UserPaint, true);
 
    format = StringFormat.GenericDefault;
    format.Alignment = StringAlignment.Center;
 
    OnResize(EventArgs.Empty);
  }
 
  void DrawCaption(Graphics g, RectangleF r, string caption)
  {
    g.DrawString(caption, Font, SystemBrushes.ControlText,
      r, format);
  }
 
  void DrawTriangle(Graphics g, RectangleF r, bool flip)
  {
    if (flip)
    {
      g.Transform = flipTransform;
      g.TranslateTransform(r.X, 0f, MatrixOrder.Append);
    }
    else
    {
      // Reset to the identity transform.
      g.ResetTransform();
    }
 
    g.FillPolygon(SystemBrushes.ControlText, triangle);
  }
 
  protected override void OnPaint(PaintEventArgs e)
  {
    base.OnPaint(e);
 
    Graphics g = e.Graphics;
 
    DrawCaption(g, left, "Normal");
    DrawCaption(g, right, "Flipped and Translated");
 
    DrawTriangle(g, left, false);
    DrawTriangle(g, right, true);
  }
 
  protected override void OnResize(EventArgs e)
  {
    float halfWidth = Width / 2f;
    float halfFont = Font.Height / 2f;
 
    left = new RectangleF(0f, 0f, halfWidth, (float)Height);
    right = new RectangleF(halfWidth, 0f, halfWidth, (float)Height);
 
    // Negate M11 to rotate along the y-axis.
    flipTransform = new Matrix(-1,0,0,1,halfWidth,0);
 
    triangle = new PointF[] {
      new PointF(halfWidth, halfFont),
      new PointF(halfWidth, (float)Height
        - SystemInformation.CaptionHeight - halfFont * 2f),
      new PointF(0f, Height / 2f)};
 
    base.OnResize(e);
  }
}

{742006A9-F10B-4A30-AD73-B05C1875B9AE}	0.0.2			258		NEWERPRODUCTFOUND	<br />
<br />
{742006A9-F10B-4A30-AD73-B05C1875B9AE}	1.0.0.0	0.0.2		256		PREVIOUSVERSIONSINSTALLED	

control1.Click += new EventHandler(someClass.control1_Click);