Wino.Server and Wino.Packaging projects. Enabling full trust for UWP and app service connection manager basics.

Wino.Server/App.xaml

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+<Application
+    x:Class="Wino.Server.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    ShutdownMode="OnExplicitShutdown"
+    xmlns:local="clr-namespace:Wino.Server">
+    <Application.Resources>
+        <ResourceDictionary Source="TrayIconResources.xaml" />
+    </Application.Resources>
+</Application>

Wino.Server/App.xaml.cs

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+using System.Windows;
+using H.NotifyIcon;
+
+namespace Wino.Server
+{
+    public partial class App : Application
+    {
+        private TaskbarIcon? notifyIcon;
+
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            base.OnStartup(e);
+
+            //create the notifyicon (it's a resource declared in NotifyIconResources.xaml
+            notifyIcon = (TaskbarIcon)FindResource("NotifyIcon");
+            notifyIcon.ForceCreate(enablesEfficiencyMode: true);
+        }
+
+        protected override void OnExit(ExitEventArgs e)
+        {
+            notifyIcon?.Dispose();
+            base.OnExit(e);
+        }
+    }
+}

Wino.Server/AssemblyInfo.cs

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+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None,            //where theme specific resource dictionaries are located
+                                                //(used if a resource is not found in the page,
+                                                // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly   //where the generic resource dictionary is located
+                                                //(used if a resource is not found in the page,
+                                                // app, or any theme specific resource dictionaries)
+)]

Wino.Server/ServerContext.cs

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+using System;
+using Windows.ApplicationModel;
+using Windows.ApplicationModel.AppService;
+
+namespace Wino.Server
+{
+    public class ServerContext
+    {
+        private AppServiceConnection connection = null;
+
+        public ServerContext()
+        {
+            InitializeAppServiceConnection();
+        }
+
+        /// <summary>
+        /// Open connection to UWP app service
+        /// </summary>
+        public async void InitializeAppServiceConnection()
+        {
+            connection = new AppServiceConnection
+            {
+                AppServiceName = "WinoInteropService",
+                PackageFamilyName = Package.Current.Id.FamilyName
+            };
+
+            connection.RequestReceived += OnWinRTMessageReceived;
+            connection.ServiceClosed += OnConnectionClosed;
+
+            AppServiceConnectionStatus status = await connection.OpenAsync();
+
+            if (status != AppServiceConnectionStatus.Success)
+            {
+                // TODO: Handle connection error
+            }
+        }
+
+        private void OnConnectionClosed(AppServiceConnection sender, AppServiceClosedEventArgs args)
+        {
+            // TODO: Handle connection closed.
+
+            // UWP app might've been terminated.
+        }
+
+        private void OnWinRTMessageReceived(AppServiceConnection sender, AppServiceRequestReceivedEventArgs args)
+        {
+            // TODO: Handle incoming messages from UWP/WINUI Application.
+        }
+    }
+}

Wino.Server/TrayIconResources.xaml

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+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:tb="http://www.hardcodet.net/taskbar"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:server="clr-namespace:Wino.Server">
+
+    <ContextMenu x:Shared="false" x:Key="SysTrayMenu">
+        <MenuItem Header="Launch Wino Mail" Command="{Binding LaunchWinoCommand}" />
+        <Separator />
+        <MenuItem Header="Exit" Command="{Binding ExitApplicationCommand}" />
+    </ContextMenu>
+
+    <tb:TaskbarIcon
+        x:Key="NotifyIcon"
+        IconSource="Images/Wino_Icon.ico"
+        ToolTipText="Wino Mail"
+        LeftClickCommand="{Binding LaunchWinoCommand}"
+        NoLeftClickDelay="True"
+        ContextMenu="{StaticResource SysTrayMenu}">
+
+        <tb:TaskbarIcon.DataContext>
+            <server:TrayIconViewModel />
+        </tb:TaskbarIcon.DataContext>
+    </tb:TaskbarIcon>
+</ResourceDictionary>

Wino.Server/TrayIconViewModel.cs

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+using System.Windows;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace Wino.Server
+{
+    public partial class TrayIconViewModel : ObservableObject
+    {
+        private readonly ServerContext _context = new ServerContext();
+
+        [RelayCommand]
+        public void LaunchWino()
+        {
+        }
+
+        /// <summary>
+        /// Shuts down the application.
+        /// </summary>
+        [RelayCommand]
+        public void ExitApplication()
+        {
+            // TODO: App service send message to UWP app to terminate itself.
+
+            Application.Current.Shutdown();
+        }
+    }
+}

Wino.Server/Wino.Server.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+	<PropertyGroup>
+		<TargetFramework>net8.0-windows</TargetFramework>
+		<OutputType>WinExe</OutputType>
+		<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+		<UseWPF>true</UseWPF>
+		<ImportWindowsDesktopTargets>true</ImportWindowsDesktopTargets>
+		<TargetFramework>net8.0-windows10.0.17763.0</TargetFramework>
+	</PropertyGroup>
+	<PropertyGroup>
+		<StartupObject>Wino.Server.App</StartupObject>
+	</PropertyGroup>
+	<ItemGroup>
+	  <None Remove="Images\Wino_Icon.ico" />
+	</ItemGroup>
+	<ItemGroup>
+	  <Resource Include="Images\Wino_Icon.ico">
+	    <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+	  </Resource>
+	</ItemGroup>
+	<ItemGroup>
+	  <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+	  <PackageReference Include="H.NotifyIcon.Wpf" Version="2.1.0" />
+	</ItemGroup>
+	<ItemGroup>
+	  <ProjectReference Include="..\Wino.Core.Domain\Wino.Core.Domain.csproj" />
+	  <ProjectReference Include="..\Wino.Core\Wino.Core.csproj" />
+	  <ProjectReference Include="..\Wino.Messages\Wino.Messages.csproj" />
+	</ItemGroup>
+</Project>