實現窗口最小化到系統托盤C#代碼

    //1.設置WinForm窗體屬性showinTask=false

    //2.加notifyicon控件notifyIcon1，為控件notifyIcon1的屬性Icon添加一個icon圖標。

    //3.添加窗體最小化事件(首先需要添加事件引用)：

    this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);

    //上面一行是主窗體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.添加點擊圖標事件(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.可以給notifyIcon添加右鍵菜單：

    //主窗體中拖入一個ContextMenu控件NicontextMenu，點中控件，在上下文菜單中添加菜單，notifyIcon1的ContextMenu行為中選中NicontextMenu 作為上下文菜單。

    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 = "隱藏 ";  
this.menuItem_Hide.Click += new System.EventHandler(this.menuItem_Hide_Click);  
//  
// menuItem_Show  
//  
this.menuItem_Show.Index = 1;  
this.menuItem_Show.Text = "顯示 ";  
this.menuItem_Show.Click += new System.EventHandler(this.menuItem_Show_Click);  
//  
// menuItem_Aubot  
//  
this.menuItem_Aubot.Index = 2;  
this.menuItem_Aubot.Text = "關于 ";  
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();  
}   </pre>