Updating sample apps:

Microsoft.Toolkit.Sample.Forms.App/Form1.cs

@@ -4,13 +4,6 @@
 
 using Microsoft.Toolkit.Win32.UI.Controls.Interop.WinRT;
 using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Data;
-using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using System.Windows.Forms;
 
 namespace Microsoft.Toolkit.Win32.Samples.WinForms.App
@@ -25,6 +18,50 @@ public Form1()
         private void Form1_Load(object sender, EventArgs e)
         {
             inkCanvas1.InkPresenter.InputDeviceTypes = CoreInputDeviceTypes.Pen | CoreInputDeviceTypes.Mouse | CoreInputDeviceTypes.Touch;
+
+            var stackPanel = new Windows.UI.Xaml.Controls.StackPanel()
+            {
+                Background = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Black),
+            };
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Shapes.Rectangle()
+            {
+                Width = 50,
+                Height = 75,
+                Fill = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Blue),
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Shapes.Rectangle()
+            {
+                Width = 200,
+                Height = 30,
+                Fill = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Red),
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Controls.Button()
+            {
+                Width = 160,
+                Height = 60,
+                HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Center,
+                Content = "This is a UWP Button",
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Shapes.Rectangle()
+            {
+                Width = 25,
+                Height = 100,
+                Fill = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Green),
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Controls.Button()
+            {
+                Width = 300,
+                Height = 40,
+                HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Center,
+                Content = "Another long UWP Button",
+            });
+
+            windowsXamlHost.Child = stackPanel;
         }
     }
 }

Microsoft.Toolkit.Sample.Forms.App/Microsoft.Toolkit.Sample.Forms.App.csproj

@@ -47,6 +47,9 @@
     <Reference Include="System.Deployment" />
     <Reference Include="System.Drawing" />
     <Reference Include="System.Net.Http" />
+    <Reference Include="System.Runtime.WindowsRuntime">
+      <HintPath>$(WINDIR)\Microsoft.NET\Framework\v4.0.30319\System.Runtime.WindowsRuntime.dll</HintPath>
+    </Reference>
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
     <Reference Include="UIAutomationProvider" />

Microsoft.Toolkit.Sample.Wpf.App/MainWindow.xaml

@@ -3,7 +3,7 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:xamlhost="clr-namespace:Microsoft.Toolkit.Sample.Wpf.XamlHost;assembly=Microsoft.Toolkit.Sample.Wpf.XamlHost"
+        xmlns:xamlhost="clr-namespace:Microsoft.Toolkit.Wpf.UI.XamlHost;assembly=Microsoft.Toolkit.Wpf.UI.XamlHost"
         xmlns:controls="clr-namespace:Microsoft.Toolkit.Wpf.UI.Controls;assembly=Microsoft.Toolkit.Wpf.UI.Controls"
         xmlns:controls1="clr-namespace:Microsoft.Toolkit.Wpf.UI.Controls;assembly=Microsoft.Toolkit.Wpf.UI.Controls.WebView"
         mc:Ignorable="d"
@@ -22,13 +22,7 @@
             </TabItem>
             <TabItem>
                 <TabItem.Header>Samples</TabItem.Header>
-                <StackPanel Background="Azure">
-                    <xamlhost:WrappedRectangle Width="50" Height="75" Fill="Blue"/>
-                    <xamlhost:WrappedRectangle Width="200" Height="100" Fill="Red"/>
-                    <xamlhost:WrappedButton Content="This is a UWP Button" Height="60" Width="160"/>
-                    <xamlhost:WrappedRectangle Width="25" Height="100" Fill="Green"/>
-                    <xamlhost:WrappedButton Content="Another long UWP Button" Height="40" Width="300"/>
-                </StackPanel>
+                <xamlhost:WindowsXamlHost x:Name="windowsXamlHost" Loaded="WindowsXamlHost_Loaded" />
             </TabItem>
             <TabItem>
                 <TabItem.Header>MediaPlayerElement</TabItem.Header>

Microsoft.Toolkit.Sample.Wpf.App/MainWindow.xaml.cs

@@ -25,8 +25,7 @@ private void inkCanvas_Loaded(object sender, RoutedEventArgs e)
 
         private void inkToolbar_Initialized(object sender, EventArgs e)
         {
-           // Handle ink toolbar initialization events here
-
+            // Handle ink toolbar initialization events here
         }
 
         private void inkToolbar_ActiveToolChanged(object sender, object e)
@@ -43,6 +42,53 @@ private async void myMap_Loaded(object sender, RoutedEventArgs e)
             // Set the map location.
             await myMap.TrySetViewAsync(cityCenter, 12);
         }
+
+        private void WindowsXamlHost_Loaded(object sender, RoutedEventArgs e)
+        {
+            var stackPanel = new Windows.UI.Xaml.Controls.StackPanel()
+            {
+                Background = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Black),
+            };
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Shapes.Rectangle()
+            {
+                Width = 50,
+                Height = 75,
+                Fill = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Blue),
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Shapes.Rectangle()
+            {
+                Width = 200,
+                Height = 30,
+                Fill = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Red),
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Controls.Button()
+            {
+                Width = 160,
+                Height = 60,
+                HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Center,
+                Content = "This is a UWP Button",
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Shapes.Rectangle()
+            {
+                Width = 25,
+                Height = 100,
+                Fill = new Windows.UI.Xaml.Media.SolidColorBrush(Windows.UI.Colors.Green),
+            });
+
+            stackPanel.Children.Add(new Windows.UI.Xaml.Controls.Button()
+            {
+                Width = 300,
+                Height = 40,
+                HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Center,
+                Content = "Another long UWP Button",
+            });
+
+            windowsXamlHost.Child = stackPanel;
+        }
     }
 
 }

Microsoft.Toolkit.Sample.Wpf.App/Microsoft.Toolkit.Sample.Wpf.App.csproj

@@ -23,6 +23,9 @@
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Net.Http" />
+    <Reference Include="System.Runtime.WindowsRuntime">
+      <HintPath>$(WINDIR)\Microsoft.NET\Framework\v4.0.30319\System.Runtime.WindowsRuntime.dll</HintPath>
+    </Reference>
     <Reference Include="System.Xaml" />
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
@@ -34,7 +37,6 @@
   <ItemGroup>
     <ProjectReference Include="..\Microsoft.Toolkit.Wpf.UI.Controls.WebView\Microsoft.Toolkit.Wpf.UI.Controls.WebView.csproj" />
     <ProjectReference Include="..\Microsoft.Toolkit.Wpf.UI.Controls\Microsoft.Toolkit.Wpf.UI.Controls.csproj" />
-    <ProjectReference Include="..\Microsoft.Toolkit.Sample.Wpf.XamlHost\Microsoft.Toolkit.Sample.Wpf.XamlHost.csproj" />
     <ProjectReference Include="..\Microsoft.Toolkit.Wpf.UI.XamlHost\Microsoft.Toolkit.Wpf.UI.XamlHost.csproj" />
   </ItemGroup>
   <ItemGroup>