将winform窗口最小化到任务栏托盘中

1.设置WinForm窗体属性ShowInTaskbar=false
this.ShowInTaskbar = 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)：
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;
        }