19. Trader - How to draw rectangle?

Soon, we'll need rectangle as part of candle construction. Here is the simple way of how to draw rectangle.

Code under button1:

 private void button1_Click(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();                     // invoke graphics
            SolidBrush solidBrush = new SolidBrush(Color.Pink);     // choose drawing tool in pink color
            g.FillRectangle(solidBrush, 100, 100, 100, 200);        // draw rectangle with top coordinates and dimensions
        }