In The Name Of God

        int i = 0;
        private void timer1_Tick(object sender, EventArgs e)
        {
            Bitmap b = new Bitmap(Width, Height);
            Graphics g = Graphics.FromImage(b);
            i+=1;
            g.DrawString("به نام", new Font("Tahoma", 14,FontStyle.Underline), Brushes.Black, new PointF((float)Math.Cos(Math.PI * i / 180) * 100 + Width / 2, (float)(float)Math.Sin(Math.PI * i / 180) * 100 + Height / 2));
            g.DrawString("خداوند", new Font("Tahoma", 14, FontStyle.Underline), Brushes.Black, new PointF((float)Math.Cos(Math.PI * (i + 90) / 180) * 100 + Width / 2, (float)(float)Math.Sin(Math.PI * (i + 90) / 180) * 100 + Height / 2));
            g.DrawString("بخشنده", new Font("Tahoma", 14, FontStyle.Underline), Brushes.Black, new PointF((float)Math.Cos(Math.PI * (i + 180) / 180) * 100 + Width / 2, (float)(float)Math.Sin(Math.PI * (i + 180) / 180) * 100 + Height / 2));
            g.DrawString("بخشایشگر", new Font("Tahoma", 14, FontStyle.Underline), Brushes.Black, new PointF((float)Math.Cos(Math.PI * (i + 270) / 180) * 100 + Width / 2, (float)(float)Math.Sin(Math.PI * (i + 270) / 180) * 100 + Height / 2));
            this.BackgroundImage = b;
        }