GUI Windows Forms C# Tutorial

using System;        
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace NotifyIconExample
{
  /// 
  /// Summary description for NotifyIconForm.
  /// 

  public class NotifyIconForm : System.Windows.Forms.Form
  {
    private System.Windows.Forms.NotifyIcon notifyIcon1;
    private System.Windows.Forms.Button button1;
    private System.ComponentModel.IContainer components;
    public NotifyIconForm()
    {
      //
      // Required for Windows Form Designer support
      //
      InitializeComponent();
      //
      // TODO: Add any constructor code after InitializeComponent call
      //
      this.notifyIcon1.DoubleClick += new System.EventHandler(this.notifyIcon1_DoubleClick);
    }
    /// 
    /// Clean up any resources being used.
    /// 

    protected override void Dispose( bool disposing )
    {
      if( disposing )
      {
        if (components != null) 
        {
          components.Dispose();
        }
      }
      base.Dispose( disposing );
    }
    #region Windows Form Designer generated code
    /// 
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// 

    private void InitializeComponent()
    {
      this.components = new System.ComponentModel.Container();
      this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
      this.button1 = new System.Windows.Forms.Button();
      this.SuspendLayout();
      // 
      // notifyIcon1
      // 
      this.notifyIcon1.Icon = new Icon("yourIcon.ico");
      this.notifyIcon1.Text = "Hello from NotifyIconExample";
      // 
      // button1
      // 
      this.button1.Location = new System.Drawing.Point(109, 122);
      this.button1.Name = "button1";
      this.button1.TabIndex = 0;
      this.button1.Text = "Hide in tray";
      this.button1.Click += new System.EventHandler(this.button1_Click);
      // 
      // NotifyIconForm
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 266);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.button1});
      this.Name = "NotifyIconForm";
      this.Text = "NotifyIconForm";
      this.ResumeLayout(false);
    }
    #endregion
    /// 
    /// The main entry point for the application.
    /// 

    [STAThread]
    static void Main() 
    {
      Application.Run(new NotifyIconForm());
    }
    private void button1_Click(object sender, System.EventArgs e)
    {
      notifyIcon1.Visible = true;
      this.Visible = false;
    }
    private void notifyIcon1_DoubleClick(object sender, System.EventArgs e)
    {
      notifyIcon1.Visible = false;
      this.Visible = true;
    }
  }
}