كيف ارسم triangle ؟

كيف ارسم triangle ؟

ما هو الخطأ في الكود الأتي؟؟؟؟؟؟

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Microsoft.DirectX;
using Microsoft.DirectX.Direct3D;
//using Microsoft.DirectX.DirectDraw;

namespace _1
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
  /// <summary>
  /// Required designer variable.
  /// </summary>
  private System.ComponentModel.Container components = null;

  public Form1()
  {
 	 //
 	 // Required for Windows Form Designer support
 	 //
 	 InitializeComponent();

 	 //
 	 // TODO: Add any constructor code after InitializeComponent call
 	 //
  }

  /// <summary>
  /// Clean up any resources being used.
  /// </summary>
  protected override void Dispose( bool disposing )
  {
 	 if( disposing )
 	 {
    if (components != null) 
    {
   	 components.Dispose();
    }
 	 }
 	 base.Dispose( disposing );
  }

  #region Windows Form Designer generated code
  /// <summary>
  /// Required method for Designer support - do not modify
  /// the contents of this method with the code editor.
  /// </summary>
  private void InitializeComponent()
  {
 	 // 
 	 // Form1
 	 // 
 	 this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
 	 this.ClientSize = new System.Drawing.Size(292, 273);
 	 this.Name = "Form1";
 	 this.Text = "Form1";

  }
  #endregion

  /// <summary>
  /// The main entry point for the application.
  /// </summary>
  [STAThread]
  static void Main() 
  {
 	 using(Form1 frm=new Form1())
 	 {
    frm.Show();
    frm.InitializeGraphics();
    Application.Run(frm);
 	 }

 	 
  }
  private Device device=null;

  //we will initialze our graphics device here
  public void InitializeGraphics()
  {
 	 PresentParameters presentparams=new PresentParameters();
 	 presentparams.Windowed=true;
 	 presentparams.SwapEffect=SwapEffect.Discard;
 	 device=new Device(0,DeviceType.Hardware,this,CreateFlags.SoftwareVertexProcessing,presentparams);
 	 


  }
  protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
  {
 	 device.Clear(ClearFlags.Target,Color.DarkOrange,1.0f,0);
 	 device.Present();

 	 
 	 CustomVertex.TransformedColored[] verts=new Microsoft.DirectX.Direct3D.CustomVertex.TransformedColored[3];
 	 verts[0].SetPosition(new Vector4(this.Width/2.0f,5.0f,0.5f,1.0f));
 	 verts[0].Color=Color.Black.ToArgb();
 	 verts[1].SetPosition(new Vector4(this.Width-(this.Width/5.0f),this.Height-(this.Height/5.0f),0.5f,1.0f));
 	 verts[1].Color=Color.Black.ToArgb();
 	 verts[2].SetPosition(new Vector4(this.Width/5.0f,this.Height-(this.Height/5.0f),0.5f,1.0f));
 	 verts[2].Color=Color.Black.ToArgb();

 	 device.BeginScene();
 	 device.VertexFormat=CustomVertex.TransformedColored.Format;
 	 device.DrawUserPrimitives(PrimitiveType.TriangleList,1,verts);
 	 device.EndScene();

// 	 this.Invalidate();
// 	 this.SetStyle(ControlStyles.AllPaintingInWmPaint|ControlStyles.Opaque,true);
  }

  private void button1_Click(object sender, System.EventArgs e)
  {
 	 Application.Exit();
  }
	}
}