WinForm实现最小化到系统托盘方法实例详解

if(this.WindowState == FormWindowState.Minimized) //判断是否最小化
{
this.ShowInTaskbar = false; //不显示在系统任务栏
notifyIcon.Visible = true; //托盘图标可见
}

if(this.WindowState == FormWindowState.Minimized)
{
this.ShowInTaskbar = true; //显示在系统任务栏
this.WindowState = FormWindowState.Normal; //还原窗体
notifyIcon.Visible = false; //托盘图标隐藏
}

private ContextMenu notifyiconMnu;
#region 最小化到任务栏
/// <summary>
/// 最小化到任务栏
/// </summary>
private void Initializenotifyicon()
{
  //定义一个MenuItem数组，并把此数组同时赋值给ContextMenu对象 
  MenuItem[] mnuItms = new MenuItem[3];
  mnuItms[0] = new MenuItem();
  mnuItms[0].Text = "显示窗口";
  mnuItms[0].Click += new System.EventHandler(this.notifyIcon1_showfrom);
  mnuItms[1] = new MenuItem("-");
  mnuItms[2] = new MenuItem();
  mnuItms[2].Text = "退出系统";
  mnuItms[2].Click += new System.EventHandler(this.ExitSelect);
  mnuItms[2].DefaultItem = true;
  notifyiconMnu = new ContextMenu(mnuItms);
  notifyIcon1.ContextMenu = notifyiconMnu;
  //为托盘程序加入设定好的ContextMenu对象 
}
private void notifyIcon1_DoubleClick(object sender, EventArgs e)
{
  if (this.WindowState == FormWindowState.Minimized)
  {
    this.Show();
    this.ShowInTaskbar = true; 
    this.WindowState = FormWindowState.Normal; 
    notifyIcon1.Visible = false; 
  }
}
public void notifyIcon1_showfrom(object sender, System.EventArgs e)
{
  if (this.WindowState == FormWindowState.Minimized)
  {
    this.Show();
    this.ShowInTaskbar = true;
    this.WindowState = FormWindowState.Normal;
    notifyIcon1.Visible = false;
  }
}
public void ExitSelect(object sender, System.EventArgs e)
{
  //隐藏托盘程序中的图标 
  notifyIcon1.Visible = false;
  //关闭系统 
  this.Close();
  this.Dispose(true);
}
#endregion
private void Form_main_SizeChanged(object sender, EventArgs e)
{
  if (this.WindowState == FormWindowState.Minimized)
  //判断是否最小化
  {
    notifyIcon1.Visible = true;
    this.Hide();
    this.ShowInTaskbar = false;
    Initializenotifyicon();
  }
}