Classe NotifyIcon

using System;
using System.Drawing;
using System.Windows.Forms;

publicclass Form1 : System.Windows.Forms.Form
{
    private System.Windows.Forms.NotifyIcon notifyIcon1;
    private System.Windows.Forms.ContextMenu contextMenu1;
    private System.Windows.Forms.MenuItem menuItem1;
    private System.ComponentModel.IContainer components;

    [STAThread]
    staticvoid Main() 
    {
        Application.Run(new Form1());
    }

    public Form1()
    {
        this.components = new System.ComponentModel.Container();
        this.contextMenu1 = new System.Windows.Forms.ContextMenu();
        this.menuItem1 = new System.Windows.Forms.MenuItem();

        // Initialize contextMenu1this.contextMenu1.MenuItems.AddRange(
                    new System.Windows.Forms.MenuItem[] {this.menuItem1});

        // Initialize menuItem1this.menuItem1.Index = 0;
        this.menuItem1.Text = "E&xit";
        this.menuItem1.Click += new System.EventHandler(this.menuItem1_Click);

        // Set up how the form should be displayed.this.ClientSize = new System.Drawing.Size(292, 266);
        this.Text = "Notify Icon Example";

        // Create the NotifyIcon.this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);

        // The Icon property sets the icon that will appear// in the systray for this application.
        notifyIcon1.Icon = new Icon("appicon.ico");

        // The ContextMenu property sets the menu that will// appear when the systray icon is right clicked.
        notifyIcon1.ContextMenu = this.contextMenu1;

        // The Text property sets the text that will be displayed,// in a tooltip, when the mouse hovers over the systray icon.
        notifyIcon1.Text = "Form1 (NotifyIcon example)";
        notifyIcon1.Visible = true;

        // Handle the DoubleClick event to activate the form.
        notifyIcon1.DoubleClick += new System.EventHandler(this.notifyIcon1_DoubleClick);

    }

    protectedoverridevoid Dispose( bool disposing )
    {
        // Clean up any components being used.if( disposing )
            if (components != null)
                components.Dispose();            

        base.Dispose( disposing );
    }

    privatevoid notifyIcon1_DoubleClick(object Sender, EventArgs e) 
    {
        // Show the form when the user double clicks on the notify icon.// Set the WindowState to normal if the form is minimized.if (this.WindowState == FormWindowState.Minimized)
            this.WindowState = FormWindowState.Normal;

        // Activate the form.this.Activate();
    }

    privatevoid menuItem1_Click(object Sender, EventArgs e) {
        // Close the form, which closes the application.this.Close();
    }
}

import System.*;
import System.Drawing.*;
import System.Windows.Forms.*;

public class Form1 extends System.Windows.Forms.Form
{
    private System.Windows.Forms.NotifyIcon notifyIcon1;
    private System.Windows.Forms.ContextMenu contextMenu1;
    private System.Windows.Forms.MenuItem menuItem1;
    private System.ComponentModel.IContainer components;

    /** @attribute STAThread()
     */
    public static void main(String[] args)
    {
        Application.Run(new Form1());
    } //main

    public Form1()
    {
        this.components = new System.ComponentModel.Container();
        this.contextMenu1 = new System.Windows.Forms.ContextMenu();
        this.menuItem1 = new System.Windows.Forms.MenuItem();
        // Initialize contextMenu1
        this.contextMenu1.get_MenuItems().AddRange(
            new System.Windows.Forms.MenuItem[] { this.menuItem1 });
        // Initialize menuItem1
        this.menuItem1.set_Index(0);
        this.menuItem1.set_Text("E&xit");
        this.menuItem1.add_Click(new System.EventHandler(this.menuItem1_Click));
        // Set up how the form should be displayed.
        this.set_ClientSize(new System.Drawing.Size(292, 266));
        this.set_Text("Notify Icon Example");
        // Create the NotifyIcon.
        this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
        // The Icon property sets the icon that will appear
        // in the systray for this application.
        notifyIcon1.set_Icon(new Icon("appicon.ico"));
        // The ContextMenu property sets the menu that will
        // appear when the systray icon is right clicked.
        notifyIcon1.set_ContextMenu(this.contextMenu1);
        // The Text property sets the text that will be displayed,
        // in a tooltip, when the mouse hovers over the systray icon.
        notifyIcon1.set_Text("Form1 (NotifyIcon example)");
        notifyIcon1.set_Visible(true);
        // Handle the DoubleClick event to activate the form.
        notifyIcon1.add_DoubleClick(
            new System.EventHandler(this.notifyIcon1_DoubleClick));
    } //Form1

    protected void Dispose(boolean disposing)
    {
        // Clean up any components being used.
        if (disposing) {
            if (components != null) {
                components.Dispose();
            }
        }

        super.Dispose(disposing);
    } //Dispose

    private void notifyIcon1_DoubleClick(Object Sender, EventArgs e)
    {
        // Show the form when the user double clicks on the notify icon.
        // Set the WindowState to normal if the form is minimized.
        if (this.get_WindowState().Equals(FormWindowState.Minimized)) {
            this.set_WindowState(FormWindowState.Normal);
        }
        // Activate the form.
        this.Activate();
    } //notifyIcon1_DoubleClick

    private void menuItem1_Click(Object Sender, EventArgs e)
    {
        // Close the form, which closes the application.
        this.Close();
    } //menuItem1_Click
} //Form1