Проект 9: Графика в C#

1.  Изчертаване на квадрат.

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






        Bitmap btm;
        Graphics g;
        Rectangle r;
        Pen p;

        public void drawMethod(Brush b)
        {

            g = CreateGraphics();
            p = new Pen(b);
            r = new Rectangle(20, 20, 100, 100);
            g.DrawRectangle(p, r);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            drawMethod(Brushes.Red);
        }
    }
}