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Help With Code Please

I  am using the following code to produce a ring on the screen however I would like to change the color of the in four parts

based on 360'   0'-90' Green, 90'-180, yellow 180'-315' red, 315'-0' blue

     private void button1_Click(object sender, System.EventArgs e)
          this.TransparencyKey = Color.WhiteSmoke;
          this.BackColor = Color.WhiteSmoke;
          Graphics g = this.CreateGraphics();
          g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
          g.DrawEllipse(new Pen(Brushes.Yellow, 6f), 5, 5, 700, 700);
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2 Solutions
Try the FillPie method with a new SolidBrush to fill it. Will post code in a minute.
g.FillPie(new SolidBrush(Color.Green), 5, 5, 700, 700, 0, 90);
g.FillPie(new SolidBrush(Color.Yellow), 5, 5, 700, 700, 90, 180);
g.FillPie(new SolidBrush(Color.Red), 5, 5, 700, 700, 180, 315); // did you mean 270?
g.FillPie(new SolidBrush(Color.Green), 5, 5, 700, 700, 315, 360);

Then draw the white circle to bound it all.
schenkpAuthor Commented:
I still want to keep the original desing of the code which is the circle, and just repaint the circle with the colors list above....

you the end result would be a colored ring wiht the colors listed above.
Gautham JanardhanCommented:
g.DrawArc(new Pen(Brushes.Yellow, 6f),5,5,700,700,0,90);
 g.DrawArc(new Pen(Brushes.Red, 6f),5,5,700,700,90,90);
g.DrawArc(new Pen(Brushes.Violet, 6f),5,5,700,700,180,90);
g.DrawArc(new Pen(Brushes.Gold, 6f),5,5,700,700,270,90);
Sorry, misinterpreted your question. gauthampj's code should do it.
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