C#编写最小化时隐藏为任务栏图标的 Window appllication.

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();