C#实现窗口最小化到系统托盘

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 notifyIconShow
{
public partial class ColdJoke : Form
{
#region
//创建NotifyIcon对象
NotifyIcon notifyicon = new NotifyIcon();
//创建托盘图标对象
Icon ico = new Icon("snow.ico");
//创建托盘菜单对象
ContextMenu notifyContextMenu = new ContextMenu();
#endregion

public ColdJoke()
{
InitializeComponent();
}

#region 托盘提示
private void Form1_Load(object sender, EventArgs e)
{
//设置鼠标放在托盘图标上面的文字
this.notifyIcon1.Text = "笑话";
}
#endregion

#region 隐藏任务栏图标、显示托盘图标
private void Form1_SizeChanged(object sender, EventArgs e)
{
//判断是否选择的是最小化按钮
if (WindowState == FormWindowState.Minimized)
{
//托盘显示图标等于托盘图标对象
//注意notifyIcon1是控件的名字而不是对象的名字
notifyIcon1.Icon = ico;
//隐藏任务栏区图标
this.ShowInTaskbar = false;
//图标显示在托盘区
notifyicon.Visible = true;
}
}
#endregion

#region 还原窗体
private void notifyIcon1_DoubleClick(object sender, EventArgs e)
{
//判断是否已经最小化于托盘
if (WindowState == FormWindowState.Minimized)
{
//还原窗体显示
WindowState = FormWindowState.Normal;
//激活窗体并给予它焦点
this.Activate();
//任务栏区显示图标
this.ShowInTaskbar = true;
//托盘区图标隐藏
notifyicon.Visible = false;
}
}
#endregion
}

}