Graphic Up

private void Form1_Paint(object sender, PaintEventArgs e)
{
    // حالت معمولی
    e.Graphics.DrawEllipse(new Pen(Color.Red, 10), 30, 30, 50, 50);

    //  SmoothingMode.AntiAlias  روانسازی به کمک
    e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
    e.Graphics.DrawEllipse(new Pen(Color.Blue, 10), 30, 100, 50, 50);
}