注：本程序是在VS2005基础上写的。

1、如果不想让程序在任务栏中显示，请把窗体的属性ShowInTaskbar设置为false;

2、如果想让程序启动时就最小化，请设置窗体的属性WindowState设置为Minimized。(Minimized 最小化，Normal正常启动，Maximized最大化)

3、拉一个NotifyIcon控件notifyIcon，为控件notifyIcon的属性Icon添加一个icon图标。

4、可以为NotifyIcon加一个ContextMenuStrip右键菜单menu_Notify。

5、本例子禁用了窗体最大化按钮。(设置窗体的属性MaximizeBox的属性为false)

6、主要代码：
#region 私有方法　处理窗体的　显示　隐藏　关闭(退出)
        private void ExitMainForm()
        {
            if (MessageBox.Show("您确定要退出化验数据接收程序吗？", "确认退出", MessageBoxButtons.OKCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.OK)
            {
                this.notifyIcon.Visible = false;
                this.Close();
                this.Dispose();
                Application.Exit();
            }
        }

        private void HideMainForm()
        {
            this.Hide();
        }

        private void ShowMainForm()
        {
            this.Show();
            this.WindowState = FormWindowState.Normal;
            this.Activate();
        }
        #endregion#region 右键菜单处理，显示　隐藏　退出
        private void menuItem_Show_Click(object sender, EventArgs e)
        {
            ShowMainForm();
        }

        private void menuItem_Hide_Click(object sender, EventArgs e)
        {
            HideMainForm();
        }

        private void menuItem_Exit_Click(object sender, EventArgs e)
        {
            ExitMainForm();
        }
        #endregion#region 双击托盘上图标时，显示窗体
        private void notifyIcon_DoubleClick(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Normal)
            {
                this.WindowState = FormWindowState.Minimized;
   
                HideMainForm();
            }
            else if(this.WindowState == FormWindowState.Minimized)
            {
                ShowMainForm();
            }
        }
        #endregion

        #region 点最小化按钮时，最小化到托盘
        private void frmMain_SizeChanged(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Minimized)
            {
                HideMainForm();
            }
        }
        #endregion

        #region 窗体关闭时最小化到托盘
        private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
        {
            e.Cancel = true;

            HideMainForm();
        }
        #endregion ^{限制上网流量,聚s生s网w管r首选}

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