---

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Runtime.ConstrainedExecution;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp7
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            Pen pen = new Pen(Color.Black, 10);

            g.DrawLine(pen, 100, 450, 700, 450);
            g.DrawLine(pen, 100, 450, 200, 600);
            g.DrawLine(pen, 700, 450, 650, 600);
            g.DrawLine(pen, 200, 600, 650, 600);

            g.DrawLine(pen, 300, 450, 300, 0);

            g.DrawLine(pen, 300, 100, 100, 400);
            g.DrawLine(pen, 300, 100, 700, 400);
            g.DrawLine(pen, 100, 400, 700, 400);

            g.DrawLine(pen, 300, 0, 400, 30);
            g.DrawLine(pen, 400, 30, 300, 80);
            g.DrawLine(pen, 300, 0, 300, 80);

            Pen pen1 = new Pen(Color.Red);
            pen1.Width = 3;

            pen1.DashStyle = (DashStyle)4;

            pen1.LineJoin = System.Drawing.Drawing2D.LineJoin.Bevel;

            for (int i = 0; i < 10; i++)
                g.DrawLine(pen1, 50, 0, 50, ClientRectangle.Height);
            
            

        }
    }
}