drawellipse+click event

 namespace EllipseRegionClick
{
    public partial class Form1 : Form
    {
        Panel panelForClick;
        public Form1()
        {
            InitializeComponent();
            panelForClick = new Panel();
            GraphicsPath grPath = new GraphicsPath();
            grPath.AddEllipse(10,20,100,80);
            Region EllipseRegion;
            EllipseRegion = new Region(grPath);
            panelForClick = new Panel();
            panelForClick.Region = EllipseRegion;
            panelForClick.BackColor = Color.Brown;
            panelForClick.MouseClick += new MouseEventHandler(panelForClick_MouseClick);
            this.Controls.Add(panelForClick);
        }

        void panelForClick_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                // and so on;
            }
        }
    }
}