C# 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=newSystem.Windows.Forms.NotifyIcon(this.components);
this.NicontextMenu=newSystem.Windows.Forms.ContextMenu();
this.menuItem_Hide=newSystem.Windows.Forms.MenuItem();
this.menuItem_Show=newSystem.Windows.Forms.MenuItem();
this.menuItem_Aubot=newSystem.Windows.Forms.MenuItem();
this.menuItem_Exit=newSystem.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+=newSystem.EventHandler(this.notifyIcon1_DoubleClick);
this.notifyIcon1.Click+=newSystem.EventHandler(this.notifyIcon1_Click);

this.NicontextMenu.MenuItems.AddRange(newSystem.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+=newSystem.EventHandler(this.menuItem_Hide_Click);
//
//menuItem_Show
//
this.menuItem_Show.Index=1;
this.menuItem_Show.Text="显示";
this.menuItem_Show.Click+=newSystem.EventHandler(this.menuItem_Show_Click);
//
//menuItem_Aubot
//
this.menuItem_Aubot.Index=2;
this.menuItem_Aubot.Text="关于";
this.menuItem_Aubot.Click+=newSystem.EventHandler(this.menuItem_Aubot_Click);
//
//menuItem_Exit
//
this.menuItem_Exit.Index=3;
this.menuItem_Exit.Text="退出";
this.menuItem_Exit.Click+=newSystem.EventHandler(this.menuItem_Exit_Click);
protectedoverridevoidOnClosing(CancelEventArgse)
{
this.ShowInTaskbar=false;
this.WindowState=FormWindowState.Minimized;
e.Cancel=true;
}
protectedoverridevoidOnClosing(CancelEventArgse)
{
//this.ShowInTaskbar=false;
this.WindowState=FormWindowState.Minimized;
e.Cancel=true;
}

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

privatevoidHideCtiServer()
{
this.Hide();

}

privatevoidShowCtiServer()
{
this.Show();
this.WindowState=FormWindowState.Normal;
this.Activate();

}
privatevoidCtiManiForm_Closing(objectsender,System.ComponentModel.CancelEventArgse)
{
this.CloseCtiServer();
}

privatevoidmenuItem_Show_Click(objectsender,System.EventArgse)
{
this.ShowCtiServer();
}

privatevoidmenuItem_Aubot_Click(objectsender,System.EventArgse)
{

}

privatevoidmenuItem_Exit_Click(objectsender,System.EventArgse)
{
this.CloseCtiServer();
}

privatevoidmenuItem_Hide_Click(objectsender,System.EventArgse)
{
this.HideCtiServer();
}

privatevoidCtiManiForm_SizeChanged(objectsender,System.EventArgse)
{
if(this.WindowState==FormWindowState.Minimized)
{
this.HideCtiServer();
}

}

privatevoidnotifyIcon1_DoubleClick(objectsender,System.EventArgse)
{
this.ShowCtiServer();
}