Started experiment with unpackaged winui3 project.

NTwain.sln

@@ -30,6 +30,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "csizes", "csizes\csizes.vcx
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "WinConsole32", "samples\WinConsole32\WinConsole32.csproj", "{4E2417E7-FDC3-46D7-B976-84A97B500B74}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WinUI3", "samples\WinUI3\WinUI3.csproj", "{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -122,6 +124,30 @@ Global
 		{4E2417E7-FDC3-46D7-B976-84A97B500B74}.Release|x64.Build.0 = Release|Any CPU
 		{4E2417E7-FDC3-46D7-B976-84A97B500B74}.Release|x86.ActiveCfg = Release|Any CPU
 		{4E2417E7-FDC3-46D7-B976-84A97B500B74}.Release|x86.Build.0 = Release|Any CPU
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|Any CPU.ActiveCfg = Debug|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|Any CPU.Build.0 = Debug|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|Any CPU.Deploy.0 = Debug|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|ARM64.Build.0 = Debug|ARM64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|ARM64.Deploy.0 = Debug|ARM64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|x64.ActiveCfg = Debug|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|x64.Build.0 = Debug|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|x64.Deploy.0 = Debug|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|x86.ActiveCfg = Debug|x86
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|x86.Build.0 = Debug|x86
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Debug|x86.Deploy.0 = Debug|x86
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|Any CPU.ActiveCfg = Release|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|Any CPU.Build.0 = Release|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|Any CPU.Deploy.0 = Release|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|ARM64.ActiveCfg = Release|ARM64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|ARM64.Build.0 = Release|ARM64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|ARM64.Deploy.0 = Release|ARM64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|x64.ActiveCfg = Release|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|x64.Build.0 = Release|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|x64.Deploy.0 = Release|x64
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|x86.ActiveCfg = Release|x86
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|x86.Build.0 = Release|x86
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E}.Release|x86.Deploy.0 = Release|x86
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -130,6 +156,7 @@ Global
 		{7792A94E-D0B4-440D-8BD5-CA1CA548782C} = {707B4313-8EF8-4D0F-A95E-590783422187}
 		{C9666CB2-C9A6-48C8-AB51-D616A48058A7} = {707B4313-8EF8-4D0F-A95E-590783422187}
 		{4E2417E7-FDC3-46D7-B976-84A97B500B74} = {707B4313-8EF8-4D0F-A95E-590783422187}
+		{F94F91C8-ABC7-4CBC-9D2E-2EAC5DA8974E} = {707B4313-8EF8-4D0F-A95E-590783422187}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {7459323B-44F6-4E07-8574-E1B4B525086B}

samples/WinUI3/App.xaml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Application
+    x:Class="WinUI3.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:WinUI3">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
+                <!-- Other merged dictionaries here -->
+            </ResourceDictionary.MergedDictionaries>
+            <!-- Other app resources here -->
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

samples/WinUI3/App.xaml.cs

@@ -0,0 +1,50 @@
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Controls.Primitives;
+using Microsoft.UI.Xaml.Data;
+using Microsoft.UI.Xaml.Input;
+using Microsoft.UI.Xaml.Media;
+using Microsoft.UI.Xaml.Navigation;
+using Microsoft.UI.Xaml.Shapes;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using Windows.ApplicationModel;
+using Windows.ApplicationModel.Activation;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+
+// To learn more about WinUI, the WinUI project structure,
+// and more about our project templates, see: http://aka.ms/winui-project-info.
+
+namespace WinUI3
+{
+  /// <summary>
+  /// Provides application-specific behavior to supplement the default Application class.
+  /// </summary>
+  public partial class App : Application
+  {
+    /// <summary>
+    /// Initializes the singleton application object.  This is the first line of authored code
+    /// executed, and as such is the logical equivalent of main() or WinMain().
+    /// </summary>
+    public App()
+    {
+      this.InitializeComponent();
+    }
+
+    /// <summary>
+    /// Invoked when the application is launched.
+    /// </summary>
+    /// <param name="args">Details about the launch request and process.</param>
+    protected override void OnLaunched(Microsoft.UI.Xaml.LaunchActivatedEventArgs args)
+    {
+      m_window = new MainWindow();
+      m_window.Activate();
+    }
+
+    private Window m_window;
+  }
+}

samples/WinUI3/MainWindow.xaml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Window
+    x:Class="WinUI3.MainWindow"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:WinUI3"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d">
+
+    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
+        <Button x:Name="myButton" Click="myButton_Click">Click Me</Button>
+    </StackPanel>
+</Window>

samples/WinUI3/MainWindow.xaml.cs

@@ -0,0 +1,224 @@
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using NTwain;
+using NTwain.Data;
+using System;
+using System.Diagnostics;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+// To learn more about WinUI, the WinUI project structure,
+// and more about our project templates, see: http://aka.ms/winui-project-info.
+
+namespace WinUI3
+{
+  /// <summary>
+  /// An empty window that can be used on its own or navigated to within a Frame.
+  /// </summary>
+  public sealed partial class MainWindow : Window
+  {
+    TwainAppSession session;
+    readonly int _jpegQuality = 75;
+    readonly string saveFolder;
+    readonly Stopwatch watch = new();
+    readonly ImageCodecInfo _jpegEncoder;
+    readonly EncoderParameters _jpegParameters;
+    bool _useThreadForImag;
+    bool _useSystemDrawing;
+    bool _saveDisk;
+
+    public MainWindow()
+    {
+      this.InitializeComponent();
+
+      var libVer = FileVersionInfo.GetVersionInfo(typeof(TwainAppSession).Assembly.Location).ProductVersion;
+      Title = $"WinUI3 sample {(TWPlatform.Is32bit ? " 32bit" : " 64bit")} on NTwain {libVer}";
+
+      saveFolder = Path.Combine(Path.GetTempPath(), "ntwain-sample" + Path.DirectorySeparatorChar);
+      Directory.CreateDirectory(saveFolder);
+
+      session = new TwainAppSession();
+
+      session.StateChanged += Session_StateChanged;
+      session.SourceDisabled += Session_SourceDisabled;
+      session.TransferReady += Session_TransferReady;
+      session.Transferred += Session_Transferred;
+      session.TransferError += Session_TransferError;
+
+      this.Closed += MainWindow_Closed;
+
+      _jpegParameters = new EncoderParameters(1);
+      _jpegParameters.Param[0] = new EncoderParameter(Encoder.Quality, (long)_jpegQuality);
+      _jpegEncoder = ImageCodecInfo.GetImageEncoders().First(enc => enc.FormatID == ImageFormat.Jpeg.Guid);
+    }
+
+    private void Session_TransferError(TwainAppSession sender, TransferErrorEventArgs e)
+    {
+      if (e.Exception != null)
+      {
+        Debug.WriteLine($"[thread {Environment.CurrentManagedThreadId}] transfer error {e.Exception}.");
+      }
+      else
+      {
+        Debug.WriteLine($"[thread {Environment.CurrentManagedThreadId}] transfer error {e.Code}.");
+      }
+    }
+
+    private void MainWindow_Closed(object sender, WindowEventArgs args)
+    {
+      session.TryStepdown(STATE.S2);
+    }
+
+    private void Session_TransferReady(TwainAppSession sender, TransferReadyEventArgs e)
+    {
+      Debug.WriteLine($"[thread {Environment.CurrentManagedThreadId}] transfer ready.");
+    }
+    private void Session_Transferred(TwainAppSession sender, TransferredEventArgs e)
+    {
+      Debug.WriteLine($"[thread {Environment.CurrentManagedThreadId}] data transferred with info {e.ImageInfo}");
+      // if using a high-speed scanner, imaging handling could be a bottleneck
+      // so it's possible to pass the data to another thread while the scanning
+      // loop happens. Just remember to dispose it after.
+
+      if (_useThreadForImag)
+      {
+        // bad thread example but whatev. should use a dedicated thread of some sort for real
+        Task.Run(() =>
+        {
+          HandleTransferredData(e);
+        });
+      }
+      else
+      {
+        HandleTransferredData(e);
+      }
+    }
+    private void HandleTransferredData(TransferredEventArgs e)
+    {
+      try
+      {
+        // example of using some lib to handle image data
+        var saveFile = Path.Combine(saveFolder, (DateTime.Now.Ticks / 1000).ToString());
+        if (_useSystemDrawing)
+        {
+          using (var img = System.Drawing.Image.FromStream(e.Data.AsStream()))
+          {
+            if (img.PixelFormat == System.Drawing.Imaging.PixelFormat.Format1bppIndexed ||
+              img.PixelFormat == System.Drawing.Imaging.PixelFormat.Format8bppIndexed)
+            {
+              // bw or gray
+              saveFile += ".png";
+              if (_saveDisk)
+              {
+                img.Save(saveFile, ImageFormat.Png);
+                Debug.WriteLine($"Saved image to {saveFile}");
+              }
+              else img.Save(new NoOpStream(), ImageFormat.Png);
+            }
+            else
+            {
+              // color
+              saveFile += ".jpg";
+              if (_saveDisk)
+              {
+                img.Save(saveFile, _jpegEncoder, _jpegParameters);
+                Debug.WriteLine($"Saved image to {saveFile}");
+              }
+              else img.Save(new NoOpStream(), _jpegEncoder, _jpegParameters);
+            }
+          }
+        }
+        else
+        {
+          using (var stream = e.Data?.AsStream())
+          {
+            using (var img = new ImageMagick.MagickImage(e.Data.AsSpan()))
+            {
+              var format = ImageMagick.MagickFormat.Png;
+              if (img.ColorType == ImageMagick.ColorType.Palette)
+              {
+                // bw or gray
+                saveFile += ".png";
+              }
+              else
+              {
+                // color
+                saveFile += ".jpg";
+                format = ImageMagick.MagickFormat.Jpeg;
+                img.Quality = _jpegQuality;
+              }
+              if (_saveDisk)
+              {
+                img.Write(saveFile, format);
+                Debug.WriteLine($"Saved image to {saveFile}");
+              }
+              else img.Write(new NoOpStream(), format);
+            }
+          }
+        }
+      }
+      catch { }
+      finally
+      {
+        e.Dispose();
+      }
+    }
+
+    private void Session_SourceDisabled(TwainAppSession sender, TW_IDENTITY_LEGACY e)
+    {
+      session.CloseSource();
+      DispatcherQueue.TryEnqueue(() =>
+      {
+        if (watch.IsRunning)
+        {
+          watch.Stop();
+          var dlg = new ContentDialog
+          {
+            Title = "Completed",
+            Content = $"Took {watch.Elapsed} to finish that transfer.",
+            CloseButtonText = "OK",
+            XamlRoot = Content.XamlRoot
+          };
+          _ = dlg.ShowAsync();
+
+          if (_saveDisk)
+          {
+            try
+            {
+              if (Directory.Exists(saveFolder))
+              {
+                using (Process.Start(new ProcessStartInfo { FileName = saveFolder, UseShellExecute = true })) { }
+              }
+            }
+            catch { }
+          }
+        }
+      });
+    }
+
+    private void Session_StateChanged(TwainAppSession sender, STATE e)
+    {
+
+    }
+
+    private async void myButton_Click(object sender, RoutedEventArgs e)
+    {
+      if (session.State < STATE.S3)
+        await session.OpenDSMAsync();
+
+      if (session.ShowUserSelect().IsSuccess)
+      {
+        if (session.OpenSource(session.CurrentSource).IsSuccess)
+        {
+          if (session.EnableSource(true, false).IsSuccess)
+          {
+            _saveDisk = true;
+            watch.Restart();
+          }
+        }
+      }
+    }
+  }
+}

samples/WinUI3/NoOpStream.cs

@@ -0,0 +1,40 @@
+using System;
+using System.IO;
+
+namespace WinUI3
+{
+  internal class NoOpStream : Stream
+  {
+    public override bool CanRead => false;
+
+    public override bool CanSeek => false;
+
+    public override bool CanWrite => true;
+
+    public override long Length => 0;
+
+    public override long Position { get => 0; set { } }
+
+    public override void Flush()
+    {
+    }
+
+    public override int Read(byte[] buffer, int offset, int count)
+    {
+      throw new NotImplementedException();
+    }
+
+    public override long Seek(long offset, SeekOrigin origin)
+    {
+      throw new NotImplementedException();
+    }
+
+    public override void SetLength(long value)
+    {
+    }
+
+    public override void Write(byte[] buffer, int offset, int count)
+    {
+    }
+  }
+}

samples/WinUI3/Package.appxmanifest

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<Package
+  xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
+  xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
+  xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
+  xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
+  IgnorableNamespaces="uap rescap">
+
+  <Identity
+    Name="aa6cdc62-8d2a-45fb-b810-529d3b928630"
+    Publisher="CN=yinch"
+    Version="1.0.0.0" />
+
+  <mp:PhoneIdentity PhoneProductId="aa6cdc62-8d2a-45fb-b810-529d3b928630" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
+
+  <Properties>
+    <DisplayName>WinUI3</DisplayName>
+    <PublisherDisplayName>yinch</PublisherDisplayName>
+    <Logo>Assets\StoreLogo.png</Logo>
+  </Properties>
+
+  <Dependencies>
+    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.17763.0" MaxVersionTested="10.0.19041.0" />
+    <TargetDeviceFamily Name="Windows.Desktop" MinVersion="10.0.17763.0" MaxVersionTested="10.0.19041.0" />
+  </Dependencies>
+
+  <Resources>
+    <Resource Language="x-generate"/>
+  </Resources>
+
+  <Applications>
+    <Application Id="App"
+      Executable="$targetnametoken$.exe"
+      EntryPoint="$targetentrypoint$">
+      <uap:VisualElements
+        DisplayName="WinUI3"
+        Description="WinUI3"
+        BackgroundColor="transparent"
+        Square150x150Logo="Assets\Square150x150Logo.png"
+        Square44x44Logo="Assets\Square44x44Logo.png">
+        <uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png" />
+        <uap:SplashScreen Image="Assets\SplashScreen.png" />
+      </uap:VisualElements>
+    </Application>
+  </Applications>
+
+  <Capabilities>
+    <rescap:Capability Name="runFullTrust" />
+  </Capabilities>
+</Package>

samples/WinUI3/Properties/PublishProfiles/win10-arm64.pubxml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+https://go.microsoft.com/fwlink/?LinkID=208121.
+-->
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <PublishProtocol>FileSystem</PublishProtocol>
+    <Platform>ARM64</Platform>
+    <RuntimeIdentifier>win10-arm64</RuntimeIdentifier>
+    <PublishDir>bin\$(Configuration)\$(TargetFramework)\$(RuntimeIdentifier)\publish\</PublishDir>
+    <SelfContained>true</SelfContained>
+    <PublishSingleFile>False</PublishSingleFile>
+    <PublishReadyToRun Condition="'$(Configuration)' == 'Debug'">False</PublishReadyToRun>
+    <PublishReadyToRun Condition="'$(Configuration)' != 'Debug'">True</PublishReadyToRun>
+   <!-- 
+    See https://github.com/microsoft/CsWinRT/issues/373
+    <PublishTrimmed>True</PublishTrimmed>
+    -->
+  </PropertyGroup>
+</Project>

samples/WinUI3/Properties/PublishProfiles/win10-x64.pubxml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+https://go.microsoft.com/fwlink/?LinkID=208121.
+-->
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <PublishProtocol>FileSystem</PublishProtocol>
+    <Platform>x64</Platform>
+    <RuntimeIdentifier>win10-x64</RuntimeIdentifier>
+    <PublishDir>bin\$(Configuration)\$(TargetFramework)\$(RuntimeIdentifier)\publish\</PublishDir>
+    <SelfContained>true</SelfContained>
+    <PublishSingleFile>False</PublishSingleFile>
+    <PublishReadyToRun Condition="'$(Configuration)' == 'Debug'">False</PublishReadyToRun>
+    <PublishReadyToRun Condition="'$(Configuration)' != 'Debug'">True</PublishReadyToRun>
+   <!-- 
+    See https://github.com/microsoft/CsWinRT/issues/373
+    <PublishTrimmed>True</PublishTrimmed>
+    -->
+  </PropertyGroup>
+</Project>

samples/WinUI3/Properties/PublishProfiles/win10-x86.pubxml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+https://go.microsoft.com/fwlink/?LinkID=208121.
+-->
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <PublishProtocol>FileSystem</PublishProtocol>
+    <Platform>x86</Platform>
+    <RuntimeIdentifier>win10-x86</RuntimeIdentifier>
+    <PublishDir>bin\$(Configuration)\$(TargetFramework)\$(RuntimeIdentifier)\publish\</PublishDir>
+    <SelfContained>true</SelfContained>
+    <PublishSingleFile>False</PublishSingleFile>
+    <PublishReadyToRun Condition="'$(Configuration)' == 'Debug'">False</PublishReadyToRun>
+    <PublishReadyToRun Condition="'$(Configuration)' != 'Debug'">True</PublishReadyToRun>
+   <!-- 
+    See https://github.com/microsoft/CsWinRT/issues/373
+    <PublishTrimmed>True</PublishTrimmed>
+    -->
+  </PropertyGroup>
+</Project>

samples/WinUI3/Properties/launchSettings.json

@@ -0,0 +1,10 @@
+{
+  "profiles": {
+    "WinUI3 (Package)": {
+      "commandName": "MsixPackage"
+    },
+    "WinUI3 (Unpackaged)": {
+      "commandName": "Project"
+    }
+  }
+}

samples/WinUI3/WinUI3.csproj

@@ -0,0 +1,55 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows10.0.19041.0</TargetFramework>
+    <TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>
+    <RootNamespace>WinUI3</RootNamespace>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    <Platforms>x86;x64;ARM64</Platforms>
+    <RuntimeIdentifiers>win10-x86;win10-x64;win10-arm64</RuntimeIdentifiers>
+    <PublishProfile>win10-$(Platform).pubxml</PublishProfile>
+    <UseWinUI>true</UseWinUI>
+    <EnableMsixTooling>true</EnableMsixTooling>
+    <!--only for this to work at the moment-->
+    <WindowsPackageType>None</WindowsPackageType>
+    <WindowsAppSDKSelfContained>true</WindowsAppSDKSelfContained>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Content Include="Assets\SplashScreen.scale-200.png" />
+    <Content Include="Assets\LockScreenLogo.scale-200.png" />
+    <Content Include="Assets\Square150x150Logo.scale-200.png" />
+    <Content Include="Assets\Square44x44Logo.scale-200.png" />
+    <Content Include="Assets\Square44x44Logo.targetsize-24_altform-unplated.png" />
+    <Content Include="Assets\StoreLogo.png" />
+    <Content Include="Assets\Wide310x150Logo.scale-200.png" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Magick.NET-Q8-AnyCPU" Version="13.1.3" />
+    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.3.230502000" />
+    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.22621.755" />
+    <Manifest Include="$(ApplicationManifest)" />
+  </ItemGroup>
+
+  <!-- 
+    Defining the "Msix" ProjectCapability here allows the Single-project MSIX Packaging
+    Tools extension to be activated for this project even if the Windows App SDK Nuget
+    package has not yet been restored.
+  -->
+  <ItemGroup Condition="'$(DisableMsixProjectCapabilityAddedByProject)'!='true' and '$(EnableMsixTooling)'=='true'">
+    <ProjectCapability Include="Msix" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\NTwain\NTwain.csproj" />
+  </ItemGroup>
+
+  <!-- 
+    Defining the "HasPackageAndPublishMenuAddedByProject" property here allows the Solution 
+    Explorer "Package and Publish" context menu entry to be enabled for this project even if 
+    the Windows App SDK Nuget package has not yet been restored.
+  -->
+  <PropertyGroup Condition="'$(DisableHasPackageAndPublishMenuAddedByProject)'!='true' and '$(EnableMsixTooling)'=='true'">
+    <HasPackageAndPublishMenu>true</HasPackageAndPublishMenu>
+  </PropertyGroup>
+</Project>

samples/WinUI3/app.manifest

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity version="1.0.0.0" name="WinUI3.app"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!--The ID below informs the system that this application is compatible with OS features first introduced in Windows 8. 
+      For more info see https://docs.microsoft.com/windows/win32/sysinfo/targeting-your-application-at-windows-8-1 
+      
+      It is also necessary to support features in unpackaged applications, for example the custom titlebar implementation.-->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />
+    </application>
+  </compatibility>
+  
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+
+  <!-- Enable themes for Windows common controls and dialogs (Windows XP and later) -->
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity
+          type="win32"
+          name="Microsoft.Windows.Common-Controls"
+          version="6.0.0.0"
+          processorArchitecture="*"
+          publicKeyToken="6595b64144ccf1df"
+          language="*"
+        />
+    </dependentAssembly>
+  </dependency>
+</assembly>