C#NotifyIcon类把程序最小化到右下角托盘

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace NotifyIcon托盘
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)//按钮 最小化FORM 以 出发sizechanged事件
{
this.WindowState = FormWindowState.Minimized;
}

private void Form1_SizeChanged(object sender, EventArgs e)//事件内容为 显示natifyicon，并提示消息
{
if (this.WindowState == FormWindowState.Minimized)//如果为最小化
{
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip(5000, "提示信息", "窗体已最小化至托盘,可双击再次显示", ToolTipIcon.Info);   //参数为  显示时间  标题  提示信息  图标
}
}

private void 菜单1ToolStripMenuItem_Click(object sender, EventArgs e)//右键快捷菜单
{
this.WindowState = FormWindowState.Normal;
notifyIcon1.Visible = false;
}

private void Form1_Load(object sender, EventArgs e)//natifyicon初始化不显示
{
notifyIcon1.Visible = false;
}

private void notifyIcon1_DoubleClick(object sender, EventArgs e)//双击 显示
{
this.WindowState = FormWindowState.Normal;
notifyIcon1.Visible = false;
}

}
}