WPF控件--NotifyIcon

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; // Icon



public partial class MainWindow : Window

{

    NotifyIcon notifyIcon;



    public MainWindow()

    {

        InitializeComponent();

    }



    void click(object sender, RoutedEventArgs e)

    {

        // Configure and show a notification icon in the system tray

        this.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。

Celery 标签: WPF