Change Form Shape Using C#.net

Change Form Shape Using C#.net

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Drawing.Drawing2D;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace WindowsFormsApplication5

{

    public partial class Form1 : Form

    {

        int i;

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            GraphicsPath gp = new GraphicsPath();

            gp.AddEllipse(100,100,500,500);

           

            this.BackColor = Color.Brown;  

            Region reg = new Region(gp);

            this.Region=reg;

        }

        private void timer1_Tick(object sender, EventArgs e)

        {

            GraphicsPath gp = new GraphicsPath();

            if (i % 3 == 0)

            {

                gp.AddEllipse(100, 100, 500,500);

                this.BackColor = Color.Red;

            }

            else

            {

                gp.AddEllipse(100, 100, 500, 500);

                this.BackColor = Color.Blue;

            }

            i = i + 1;

            Region reg = new Region(gp);

            this.Region = reg; 

        }

    }

}