Winform設定托盤程式，托盤顯示

1.拖一個NotifyIcon，一個ContextMenuStrip控制元件到主窗體中

2、設定notifyIcon1，一個contextMenuStrip1（如下圖）

Icon為托盤圖示，Text托盤顯示文字，ContextMenuStrip右鍵選單（退出），設定退出單擊事件

3、新增主窗體關閉事件（FormClosing）

4、事件程式碼

        private void MyService_FormClosing(object sender, FormClosingEventArgs e)
        {
            // 注意判斷關閉事件reason來源於窗體按鈕，否則用選單退出時無法退出!
            if (e.CloseReason == CloseReason.UserClosing)
            {
                //取消"關閉視窗"事件
                e.Cancel = true;
                //使關閉時視窗向右下角縮小的效果
                this.WindowState = FormWindowState.Minimized;   
                this.notifyIcon1.Visible = true;
                this.Hide();
                return;
            }
        }

        private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (this.Visible)
            {
                this.WindowState = FormWindowState.Minimized;
                this.notifyIcon1.Visible = true;
                this.Hide();
            }
            else
            {
                this.Visible = true;
                this.WindowState = FormWindowState.Normal;                
                this.Activate();
            }
        }

        private void MenuItemTuichu_Click(object sender, EventArgs e)
        {
            this.notifyIcon1.Visible = false;
            this.Close();
            this.Dispose();
            System.Environment.Exit(0);
        }