1.先將Notifyicon控制元件拖入主窗體中

2.設定Text和icon屬性

3.設定雙擊托盤圖示後的方法

 private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (WindowState == FormWindowState.Minimized)
            {
                //還原窗體顯示    
                WindowState = FormWindowState.Normal;
                //啟用窗體並給予它焦點
 

                this.Activate();
                //工作列區顯示圖示
                this.ShowInTaskbar = true;
                //托盤區圖示隱藏
                notifyIcon1.Visible = false;
            }
        }

4.設定程式最小化後顯示托盤

        private void Form1_SizeChanged(object sender, EventArgs e)
        {
            //判斷是否選擇的是最小化按鈕
 

            if (WindowState == FormWindowState.Minimized)
            {
                //隱藏工作列區圖示
                this.ShowInTaskbar = false;
                //圖示顯示在托盤區
                notifyIcon1.Visible = true;
            }
        }