using System; using System.Drawing; using System.Drawing.Imaging; using System.Drawing.Drawing2D; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; public class TestGDI2 : System.Windows.Forms.Form{ //in order to paint something OnPaint method needs to be overridden protected override void OnPaint(System.Windows.Forms.PaintEventArgs pe) { //OnPaint method is a member of Form class //The following call sends pe to an event listener Graphics base.OnPaint(pe); Graphics g = pe.Graphics; g.FillRectangle(new SolidBrush(Color.White), ClientRectangle); GraphicsPath path = new GraphicsPath(new Point[] { new Point(40, 140), new Point(275, 200), new Point(105, 225), new Point(190, 300), new Point(50, 350), new Point(20, 180), }, new byte[] { (byte)PathPointType.Start, (byte)PathPointType.Bezier, (byte)PathPointType.Bezier, (byte)PathPointType.Bezier, (byte)PathPointType.Line, (byte)PathPointType.Line, }); PathGradientBrush pgb = new PathGradientBrush(path); pgb.SurroundColors = new Color[] { Color.Green,Color.Yellow,Color.Red, Color.Blue,Color.Orange, Color.White, }; g.FillPath(pgb, path); } public static void Main() { System.Windows.Forms.Application.Run(new TestGDI2());//display form } }