Path Gradient Brush from Graphics Path : Gradient : Graphics C# Source Code

    



  using System;
  using System.Drawing;
  using System.Drawing.Drawing2D;
  using System.Collections;
  using System.ComponentModel;
  using System.Windows.Forms;
  using System.Data;

  public class Form1 : System.Windows.Forms.Form
  {
    public Form1()
    {
      InitializeComponent();
    }
    private void InitializeComponent()
    {
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Text = "Pen Cap App";
      this.Resize += new System.EventHandler(this.Form1_Resize);
      this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);

    }
    static void Main() 
    {
      Application.Run(new Form1());
    }

    private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
    {      

      Graphics g = e.Graphics;
      GraphicsPath gp = new GraphicsPath();

      gp.AddLine(10, 10, 110, 15);
      gp.AddLine(110, 15, 100, 95);
      gp.AddLine(100, 95, 15, 110);
      gp.CloseFigure();

      g.FillRectangle(Brushes.White, this.ClientRectangle);
      g.SmoothingMode = SmoothingMode.AntiAlias;

      PathGradientBrush pgb = new PathGradientBrush(gp);
      pgb.CenterColor = Color.White;
      pgb.SurroundColors = new Color[] { Color.Red };
      g.FillPath(pgb, gp);

      g.DrawPath(Pens.Black, gp);
      pgb.Dispose();
      gp.Dispose();

    }

    private void Form1_Resize(object sender, System.EventArgs e)
    {
      Invalidate();
    }
  }