How to: Draw an Outlined Shape

This example draws outlined ellipses and rectangles on a form.

    private void DrawEllipse()
    {
        System.Drawing.Pen myPen = new System.Drawing.Pen(System.Drawing.Color.Red);
        System.Drawing.Graphics formGraphics;
        formGraphics = this.CreateGraphics();
        formGraphics.DrawEllipse(myPen, new Rectangle(0, 0, 200, 300));
        myPen.Dispose();
        formGraphics.Dispose();
    }

    private void DrawRectangle()
    {
        System.Drawing.Pen myPen = new System.Drawing.Pen(System.Drawing.Color.Red);
        System.Drawing.Graphics formGraphics;
        formGraphics = this.CreateGraphics();
        formGraphics.DrawRectangle(myPen, new Rectangle(0, 0, 200, 300));
        myPen.Dispose();
        formGraphics.Dispose();
    }

You cannot call this method in the Load event handler. The drawn content will not be redrawn if the form is resized or obscured by another form. To make your content automatically repaint, you should override the OnPaint method.

You should always call Dispose on any objects that consume system resources, such as Pen and Graphics objects.

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