WinForm窗口最小化到系统托盘

C#编写最小化时隐藏为任务栏图标的Window appllication.

1.设置WinForm窗体属性showinTask=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)：

this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);

//上面一行是主窗体InitializeComponent()方法中需要添加的引用

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;
}

5.可以给notifyIcon添加右键菜单：

主窗体中拖入一个ContextMenu控件NicontextMenu   ，点中控件，在上下文菜单中添加菜单，notifyIcon1的ContextMenu行为中选中NicontextMenu   作为上下文菜单。

this.notifyIcon1=   new   System.Windows.Forms.NotifyIcon(this.components);
this.NicontextMenu   =   new   System.Windows.Forms.ContextMenu();
this.menuItem_Hide   =   new   System.Windows.Forms.MenuItem();
this.menuItem_Show   =   new   System.Windows.Forms.MenuItem();
this.menuItem_Aubot   =   new   System.Windows.Forms.MenuItem();
this.menuItem_Exit   =   new   System.Windows.Forms.MenuItem();

this.notifyIcon1.ContextMenu   =   this.NicontextMenu;
this.notifyIcon1.Icon   =   ((System.Drawing.Icon)(resources.GetObject("NotifyIcon.Icon")));
this.notifyIcon1.Text   =   "";
this.notifyIcon1.Visible   =   true;
this.notifyIcon1.DoubleClick   +=   new   System.EventHandler(this.notifyIcon1_DoubleClick);
this.notifyIcon1.Click   +=   new   System.EventHandler(this.notifyIcon1_Click);

this.NicontextMenu.MenuItems.AddRange(new   System.Windows.Forms.MenuItem[]   {
     this.menuItem_Hide,
     this.menuItem_Show,
     this.menuItem_Aubot,
     this.menuItem_Exit});
// 
//   menuItem_Hide
// 
this.menuItem_Hide.Index   =   0;
this.menuItem_Hide.Text   =   "隐藏";
this.menuItem_Hide.Click   +=   new   System.EventHandler(this.menuItem_Hide_Click);
// 
//   menuItem_Show
// 
this.menuItem_Show.Index   =   1;
this.menuItem_Show.Text   =   "显示";
this.menuItem_Show.Click   +=   new   System.EventHandler(this.menuItem_Show_Click);
// 
//   menuItem_Aubot
// 
this.menuItem_Aubot.Index   =   2;
this.menuItem_Aubot.Text   =   "关于";
this.menuItem_Aubot.Click   +=   new   System.EventHandler(this.menuItem_Aubot_Click);
// 
//   menuItem_Exit
// 
this.menuItem_Exit.Index   =   3;
this.menuItem_Exit.Text   =   "退出";
this.menuItem_Exit.Click   +=   new   System.EventHandler(this.menuItem_Exit_Click);
protected   override   void   OnClosing(CancelEventArgs   e)
{
this.ShowInTaskbar   =   false;
this.WindowState   =   FormWindowState.Minimized;
e.Cancel   =   true; 
}
protected   override   void   OnClosing(CancelEventArgs   e)
{
//this.ShowInTaskbar   =   false;
this.WindowState   =   FormWindowState.Minimized;
e.Cancel   =   true; 
}

private   void   CloseCtiServer()
{
timer.Enabled   =   false;
DJ160API.DisableCard();
this.NotifyIcon.Visible   =   false;
this.Close();
this.Dispose();
Application.Exit();
}

private   void   HideCtiServer()
{
this.Hide();

}

private   void   ShowCtiServer()
{
this.Show();
this.WindowState   =   FormWindowState.Normal;
this.Activate();

}
private   void   CtiManiForm_Closing(object   sender,   System.ComponentModel.CancelEventArgs   e)
{
this.CloseCtiServer();
}

private   void   menuItem_Show_Click(object   sender,   System.EventArgs   e)
{
this.ShowCtiServer();
}

private   void   menuItem_Aubot_Click(object   sender,   System.EventArgs   e)
{

}

private   void   menuItem_Exit_Click(object   sender,   System.EventArgs   e)
{
this.CloseCtiServer();
}

private   void   menuItem_Hide_Click(object   sender,   System.EventArgs   e)
{
this.HideCtiServer();
}

private   void   CtiManiForm_SizeChanged(object   sender,   System.EventArgs   e)
{
if   (this.WindowState   ==   FormWindowState.Minimized)
{
this.HideCtiServer();
}

}

private   void   notifyIcon1_DoubleClick(object   sender,   System.EventArgs   e)
{                               
this.ShowCtiServer();
}