WPF using Visual Studio 2008 to do a tray in the procedure, modular, and very good with two sample programs use it. Left-click, right-click the taskbar icon, move the mouse to the upper icon have a package of events

wpf-notifyicon
..............\Changelog.txt
..............\NotifyIconWpf
..............\NotifyIconWpf.sln
..............\NotifyIconWpf.suo
..............\.............\BalloonIcon.cs
..............\.............\DefaultTrayIcon.ico
..............\.............\Diagrams
..............\.............\........\TaskbarIcon Overview.cd
..............\.............\Interop
..............\.............\.......\BalloonFlags.cs
..............\.............\.......\IconDataMembers.cs
..............\.............\.......\IconState.cs
..............\.............\.......\MouseEvent.cs
..............\.............\.......\NotifyCommand.cs
..............\.............\.......\NotifyIconData.cs
..............\.............\.......\NotifyIconVersion.cs
..............\.............\.......\Point.cs
..............\.............\.......\TrayInfo.cs
..............\.............\.......\WinApi.cs
..............\.............\.......\WindowClass.cs
..............\.............\.......\WindowMessageSink.cs
..............\.............\NotifyIconWpf.csproj
..............\.............\PopupActivationMode.cs
..............\.............\Properties
..............\.............\..........\AssemblyInfo.cs
..............\.............\..........\Resources.Designer.cs
..............\.............\..........\Resources.resx
..............\.............\..........\Settings.Designer.cs
..............\.............\..........\Settings.settings
..............\.............\RoutedEventHelper.cs
..............\.............\TaskbarIcon.cs
..............\.............\TaskbarIcon.Declarations.cs
..............\.............\Util.cs
..............\Sample Project
..............\..............\App.xaml
..............\..............\App.xaml.cs
..............\..............\Commands
..............\..............\........\CommandBase.cs
..............\..............\........\HideSampleWindowCommand.cs
..............\..............\........\ShowSampleWindowCommand.cs
..............\..............\Icons
..............\..............\.....\Bulb.ico
..............\..............\.....\Computers.ico
..............\..............\.....\Error.ico
..............\..............\.....\Inactive.ico
..............\..............\.....\NetDrives.ico
..............\..............\Images
..............\..............\......\Add.png
..............\..............\......\Close.png
..............\..............\......\Info.png
..............\..............\......\Preferences.png
..............\..............\......\Remove.png
..............\..............\Main.xaml
..............\..............\Main.xaml.cs
..............\..............\Properties
..............\..............\..........\AssemblyInfo.cs
..............\..............\..........\Resources.Designer.cs
..............\..............\..........\Resources.resx
..............\..............\..........\Settings.Designer.cs
..............\..............\..........\Settings.settings
..............\..............\Sample Project.csproj
..............\..............\Showcase
..............\..............\........\FancyBalloon.xaml
..............\..............\........\FancyBalloon.xaml.cs
..............\..............\........\FancyPopup.xaml
..............\..............\........\FancyPopup.xaml.cs
..............\..............\........\FancyToolTip.xaml
..............\..............\........\FancyToolTip.xaml.cs
..............\..............\........\NotifyIconResources.xaml
..............\..............\........\ShowcaseWindow.xaml
..............\..............\........\ShowcaseWindow.xaml.cs
..............\..............\........\WelcomeBalloon.xaml
..............\..............\........\WelcomeBalloon.xaml.cs
..............\..............\Tutorials
..............\..............\.........\01 - Declaration
..............\..............\.........\................\NotifyIconResourceDictionary.xaml
..............\..............\.........\................\SimpleWindowWithNotifyIcon.xaml
..............\..............\.........\................\SimpleWindowWithNotifyIcon.xaml.cs
..............\..............\.........\02 - ToolT

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