---

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        int[] m_p = new int[5];
        private void Form1_Load(object sender, EventArgs e)
        {
            this.Text = "Рисуем Линию";
            button1.Text = "Рисовать";
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            m_p[1] = Convert.ToInt32(textBox1.Text);
            m_p[2] = Convert.ToInt32(textBox2.Text);
            m_p[3] = Convert.ToInt32(textBox3.Text);
            m_p[4] = Convert.ToInt32(textBox4.Text);
            pictureBox1.Refresh();
        }

        private void pictureBox1_Paint_1(object sender, PaintEventArgs e)
        {
            // Рисуем линию
            e.Graphics.DrawLine(System.Drawing.Pens.Fuchsia, m_p[1], m_p[2], m_p[3], m_p[4]);
        }
    }
}