C# 实现程序最小化到托盘

1.设置WinForm窗体属性showinTask=false

2.加notifyicon控件notifyIcon1，为控件notifyIcon1的属性Icon添加一个icon图标。

3.添加窗体最小化事件(首先需要添加事件引用)：

this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged); //上面一行是主窗体InitializeComponent()方法中需要添加的引用 private void Form1_SizeChanged(object sender, EventArgs e) { if(this.WindowState == FormWindowState.Minimized) { this.Hide(); this.notifyIcon1.Visible=true; } }
4.添加点击图标事件(首先需要添加事件引用)：
private void notifyIcon1_Click(object sender, EventArgs e) { this.Visible = true; this.WindowState = FormWindowState.Normal; this.notifyIcon1.Visible = false; }

5.可以给notifyIcon添加右键菜单：

主窗体中拖入一个ContextMenu控件NicontextMenu，点中控件，在上下文菜单中添加菜单，notifyIcon1的ContextMenu行为中选中NicontextMenu 作为上下文菜单。
this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components); this.NicontextMenu = new System.Windows.Forms.ContextMenu(); this.menuItem_Hide = new System.Windows.Forms.MenuItem(); this.menuItem_Show = new System.Windows.Forms.MenuItem(); this.menuItem_Aubot = new System.Windows.Forms.MenuItem(); this.menuItem_Exit = new System.Windows.Forms.MenuItem(); this.notifyIcon1.ContextMenu = this.NicontextMenu; this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject( "NotifyIcon.Icon "))); this.notifyIcon1.Text = " "; this.notifyIcon1.Visible = true; this.notifyIcon1.DoubleClick += new System.EventHandler(this.notifyIcon1_DoubleClick); this.notifyIcon1.Click += new System.EventHandler(this.notifyIcon1_Click); this.NicontextMenu.MenuItems.AddRange( new System.Windows.Forms.MenuItem[] { this.menuItem_Hide, this.menuItem_Show, this.menuItem_Aubot, this.menuItem_Exit } ); // // menuItem_Hide // this.menuItem_Hide.Index = 0; this.menuItem_Hide.Text = "隐藏 "; this.menuItem_Hide.Click += new System.EventHandler(this.menuItem_Hide_Click); // // menuItem_Show // this.menuItem_Show.Index = 1; this.menuItem_Show.Text = "显示 "; this.menuItem_Show.Click += new System.EventHandler(this.menuItem_Show_Click); // // menuItem_Aubot // this.menuItem_Aubot.Index = 2; this.menuItem_Aubot.Text = "关于 "; this.menuItem_Aubot.Click += new System.EventHandler(this.menuItem_Aubot_Click); // // menuItem_Exit // this.menuItem_Exit.Index = 3; this.menuItem_Exit.Text = "退出 "; this.menuItem_Exit.Click += new System.EventHandler(this.menuItem_Exit_Click); protected override void OnClosing(CancelEventArgs e) { this.ShowInTaskbar = false; this.WindowState = FormWindowState.Minimized; e.Cancel = true; } protected override void OnClosing(CancelEventArgs e) { //this.ShowInTaskbar = false; this.WindowState = FormWindowState.Minimized; e.Cancel = true; } private void CloseCtiServer() { timer.Enabled = false; DJ160API.DisableCard(); this.NotifyIcon.Visible = false; this.Close(); this.Dispose(); Application.Exit(); } private void HideCtiServer() { this.Hide(); } private void ShowCtiServer() { this.Show(); this.WindowState = FormWindowState.Normal; this.Activate(); } private void CtiManiForm_Closing(object sender, System.ComponentModel.CancelEventArgs e) { this.CloseCtiServer(); } private void menuItem_Show_Click(object sender, System.EventArgs e) { this.ShowCtiServer(); } private void menuItem_Aubot_Click(object sender, System.EventArgs e) { } private void menuItem_Exit_Click(object sender, System.EventArgs e) { this.CloseCtiServer(); } private void menuItem_Hide_Click(object sender, System.EventArgs e) { this.HideCtiServer(); } private void CtiManiForm_SizeChanged(object sender, System.EventArgs e) { if(this.WindowState == FormWindowState.Minimized) { this.HideCtiServer(); } } private void notifyIcon1_DoubleClick(object sender,System.EventArgs e) { this.ShowCtiServer(); }