Draw line 1 : Line : Graphics C# Source Code

    

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

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

        public Finally_c()
        {
            //
            // 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()
        {
              // 
              // Finally_c
              // 
              this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
              this.ClientSize = new System.Drawing.Size(292, 273);
              this.Name = "Finally_c";
              this.Text = "Finally_c";
              this.Load += new System.EventHandler(this.Finally_c_Load);

        }   
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new Finally_c());
        }

    private void Finally_c_Load(object sender, System.EventArgs e)
    {
    
    }

    protected override void OnPaint ( PaintEventArgs e )
    {
      Pen P = new Pen(Color.Azure);

      try
      {
        e.Graphics.DrawLine(P, 10, 10, 100, 100 );
      }
      finally
      {
        P.Dispose();
      }

      using (Pen P2 = new Pen(Color.Black))
      {
        e.Graphics.DrawLine(P2, 100, 100, 200, 200 );
      }

    }

    }
}