WPF 使用NotifyIcon控件

转载自：https://www.cnblogs.com/celery94/archive/2010/10/26/1861371.html

1.在什么地方找到NotifyIcon

普通的WPF控件基本上都是在该命名空间下：System.Windows.Controls，该命名空间在C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\PresentationFramework.dll下。也就是说是.net framework3.0之后才支持的。

那难道在WPF下就不能使用NotifyIcon了吗？

在MSDN上有以下关于通知图标的示例：http://msdn.microsoft.com/zh-cn/library/aa972170(VS.90).aspx

using System;
using System.Windows;using System.Windows.Forms; // NotifyIcon control
using System.Drawing; // Iconpublic partial class MainWindow : Window
{NotifyIcon notifyIcon;public MainWindow(){InitializeComponent();}void click(object sender, RoutedEventArgs e){// Configure and show a notification icon in the system traythis.notifyIcon = new NotifyIcon();this.notifyIcon.BalloonTipText = "Hello, NotifyIcon!";this.notifyIcon.Text = "Hello, NotifyIcon!";this.notifyIcon.Icon = new System.Drawing.Icon("NotifyIcon.ico");this.notifyIcon.Visible = true;this.notifyIcon.ShowBalloonTip(1000);}
}

其中包含NotifyIcon控件，请注意它的命名空间：System.Windows.Forms; ，该命名空间是在C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Windows.Forms.dll下。所以说此处使用的NotifyIcon控件其实是.net framework 2.0就提供的在winform下面是用的控件。

2.怎么使用NotifyIcon

App.xaml

<Application x:Class="NotifyIconStd.App"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"ShutdownMode="OnExplicitShutdown" Startup="ApplicationStartup" Exit="ApplicationExit"><Application.Resources></Application.Resources>
</Application>

App.xaml.cs

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Windows;
using System.Windows.Forms;
using Application = System.Windows.Application;namespace NotifyIconStd
{public partial class App : Application{private static NotifyIcon trayIcon;private void ApplicationStartup(object sender, StartupEventArgs e){RemoveTrayIcon();AddTrayIcon();}private void AddTrayIcon(){if (trayIcon != null){return;}trayIcon = new NotifyIcon{Icon = new System.Drawing.Icon("notifyIcon.ico"),Text = "NotifyIconStd"};trayIcon.Visible = true;ContextMenu menu = new ContextMenu();MenuItem closeItem = new MenuItem();closeItem.Text = "Close";closeItem.Click += new EventHandler(delegate { this.Shutdown(); });MenuItem addItem = new MenuItem();addItem.Text = "Menu";menu.MenuItems.Add(addItem);menu.MenuItems.Add(closeItem);trayIcon.ContextMenu = menu;    //设置NotifyIcon的右键弹出菜单}private void RemoveTrayIcon(){if (trayIcon != null){trayIcon.Visible = false;trayIcon.Dispose();trayIcon = null;}}private void ApplicationExit(object sender, ExitEventArgs e){RemoveTrayIcon();}}
}

该示例程序程序只是在程序启动时，同时启动了一个NotifyIcon，没有其他主程序界面，可以在MenuItem的事件中添加关于弹出其他窗口的处理。