private void button1_Click(object sender, EventArgs e)
{
Graphics g = pictureBox1.CreateGraphics();
MyShape ms = new MyShape(new RectangleF(10, 10, 30, 30), Color.Red);
ms.Draw(g);
}
private void button1_Click(object sender, EventArgs e)
{
Random r = new Random();
Color[] colors = new Color[] { Color.Red, Color.Green, Color.Blue };
Graphics g = pictureBox1.CreateGraphics();
for (int i = 0; i < 5; ++i)
{
int x = r.Next(0, pictureBox1.Width);
int y = r.Next(0, pictureBox1.Height);
int ci = r.Next(0, colors.Length);
MyShape ms = new MyShape(new RectangleF(x, y, 30, 30), colors[ci]);
ms.Draw(g);
}
}