dotnet · adegeo · Oct 10, 2023 · Sep 21, 2023 · Sep 21, 2023 · Sep 21, 2023
diff --git a/...p-guide/framework/wpf/advanced/media/threading-model/threading-message-loop.png b/...p-guide/framework/wpf/advanced/media/threading-model/threading-message-loop.png
diff --git a/...guide/framework/wpf/advanced/media/threading-model/threading-multiwindow-ui.png b/...guide/framework/wpf/advanced/media/threading-model/threading-multiwindow-ui.png
diff --git a/...-guide/framework/wpf/advanced/media/threading-model/threading-prime-numbers.png b/...-guide/framework/wpf/advanced/media/threading-model/threading-prime-numbers.png
diff --git a/dotnet-desktop-guide/framework/wpf/advanced/media/threading-model/threading-weather-ui.pdn b/dotnet-desktop-guide/framework/wpf/advanced/media/threading-model/threading-weather-ui.pdn
diff --git a/...top-guide/framework/wpf/advanced/media/threading-model/threading-weather-ui.png b/...top-guide/framework/wpf/advanced/media/threading-model/threading-weather-ui.png
diff --git a/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/App.xaml b/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/App.xaml
@@ -0,0 +1,182 @@
+<Application x:Class="SDKSamples.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             StartupUri="NestedPumpScreenShot.xaml">
+    <Application.Resources>
+
+        <!-- <clock_resources> -->
+        <DrawingGroup x:Key="RainingDrawingResource">
+            <DrawingGroup.Children>
+                <GeometryDrawing
+          Geometry="M6.76 153.24 A13.5345 13.4115 90 0 1 17.84 128.71 A15.0216 14.8851 90 0 1 32.61 108.53 A19.4786 19.3016
+                 90 0 1 69.53 104.8 A16.5876 16.4369 90 0 1 89.83 121.26 A10.1653 10.073 90 0 1 104.6 133.06 A15.6154
+                 15.4735 90 0 1 124.91 153.24 L6.76 153.24 Z">
+                    <GeometryDrawing.Pen>
+                        <Pen Thickness="1" Brush="Gray" />
+                    </GeometryDrawing.Pen>
+                    <GeometryDrawing.Brush>
+                        <LinearGradientBrush>
+                            <LinearGradientBrush.GradientStops>
+                                <GradientStop Offset="0.0" Color="White" />
+                                <GradientStop Offset="1.0" Color="LightGray" />
+                            </LinearGradientBrush.GradientStops>
+                        </LinearGradientBrush>
+                    </GeometryDrawing.Brush>
+                </GeometryDrawing>
+                <DrawingGroup>
+                    <DrawingGroup.Children>
+                        <GeometryDrawing
+          Geometry="M5.95 91.74 A35.3025 34.9817 90 0 1 5.01 103.12 A5.61727 5.56623 90 0 1 3.13 106.13 A3.80121 3.76667
+                       -90 0 0 5.95 111.5 A5.44469 5.39522 -90 0 0 10.5 105.02 A26.575 26.3335 -90 0 0 5.95 91.74 Z M3.18
+                       130.95 A35.3025 34.9817 90 0 1 2.24 142.33 A5.61719 5.56615 90 0 1 0.36 145.34 A3.80124 3.7667 -90
+                       0 0 3.18 150.71 A5.44469 5.39522 -90 0 0 7.72 144.23 A26.5749 26.3334 -90 0 0 3.18 130.95 Z M21.66
+                       110.71 A35.3025 34.9817 90 0 1 20.72 122.1 A5.61727 5.56623 90 0 1 18.84 125.1 A3.80122 3.76668
+                       -90 0 0 21.66 130.47 A5.44471 5.39524 -90 0 0 26.21 123.99 A26.5749 26.3334 -90 0 0 21.66 110.71
+                       Z M41.09 93.32 A35.3024 34.9816 90 0 1 40.15 104.71 A5.61747 5.56642 90 0 1 38.27 107.71 A3.80121
+                       3.76667 -90 0 0 41.09 113.08 A5.44469 5.39522 -90 0 0 45.63 106.6 A26.575 26.3335 -90 0 0 41.09
+                       93.32 Z M52.37 110.71 A35.3025 34.9817 90 0 1 51.43 122.1 A5.61747 5.56642 90 0 1 49.55 125.1 A3.80121
+                       3.76667 -90 0 0 52.37 130.47 A5.44469 5.39522 -90 0 0 56.91 123.99 A26.575 26.3335 -90 0 0 52.37
+                       110.71 Z M67.41 90.48 A35.3024 34.9816 90 0 1 66.47 101.86 A5.61747 5.56642 90 0 1 64.59 104.86
+                       A3.80121 3.76667 -90 0 0 67.41 110.24 A5.44469 5.39522 -90 0 0 71.95 103.76 A26.575 26.3335 -90
+                       0 0 67.41 90.48 Z M82.45 110.71 A35.3025 34.9817 90 0 1 81.51 122.1 A5.61747 5.56642 90 0 1 79.63
+                       125.1 A3.80121 3.76667 -90 0 0 82.45 130.47 A5.44469 5.39522 -90 0 0 86.99 123.99 A26.575 26.3335
+                       -90 0 0 82.45 110.71 Z M67.41 133.48 A35.3025 34.9817 90 0 1 66.47 144.86 A5.61747 5.56642 90 0
+                       1 64.59 147.86 A3.80121 3.76667 -90 0 0 67.41 153.24 A5.44469 5.39522 -90 0 0 71.95 146.76 A26.575
+                       26.3335 -90 0 0 67.41 133.48 Z M41.09 133.48 A35.3025 34.9817 90 0 1 40.15 144.86 A5.61747 5.56642
+                       90 0 1 38.27 147.86 A3.80121 3.76667 -90 0 0 41.09 153.24 A5.44469 5.39522 -90 0 0 45.63 146.76
+                       A26.575 26.3335 -90 0 0 41.09 133.48 Z">
+                            <GeometryDrawing.Brush>
+                                <LinearGradientBrush>
+                                    <LinearGradientBrush.GradientStops>
+                                        <GradientStop Offset="0.0" Color="Blue" />
+                                        <GradientStop Offset="0.5" Color="MediumBlue" />
+                                        <GradientStop Offset="1.0" Color="Blue" />
+                                    </LinearGradientBrush.GradientStops>
+                                </LinearGradientBrush>
+                            </GeometryDrawing.Brush>
+                        </GeometryDrawing>
+                    </DrawingGroup.Children>
+
+                    <DrawingGroup.Transform>
+                        <TranslateTransform X="17" Y="65" />
+                    </DrawingGroup.Transform>
+                </DrawingGroup>
+            </DrawingGroup.Children>
+        </DrawingGroup>
+
+        <DrawingGroup x:Key="SunnyDrawingResource">
+            <DrawingGroup.Children>
+                <GeometryDrawing
+          Geometry="M8.85 41.07 A53.4063 36.0963 -1.5 0 0 32.81 56.39 A176.023 34.7393 -82.77 0 0 30.96 29.48 A41.3095 36.4713
+                 -162.8 0 0 44.23 50.04 A24.3287 2.62955 -74.97 0 0 53.08 27.24 A23.4226 5.77856 -97.65 0 0 61.92
+                 49.66 A117.859 97.3275 -88.46 0 0 77.77 31.35 L75.19 56.39 A56.1767 42.6929 -171.79 0 0 95.1 45.18
+                 A52.3347 15.5189 -74 0 0 82.2 65.36 A20.4525 3.85006 -5.14 0 0 106.16 67.23 A94.2464 31.8154 -11.62
+                 0 0 86.25 78.81 A32.4058 16.4271 -0.4 0 0 108 89.65 A26.4725 3.83251 -7.16 0 0 82.2 96.75 A70.9645
+                 39.7124 -159.18 0 0 97.31 114.69 A41.289 5.19876 9.99 0 1 75.19 107.59 A352.489 285.063 -52.69 0
+                 0 75.19 132.62 A49.0409 22.2854 -152.61 0 0 59.34 112.44 A23.129 4.93305 -86.68 0 0 53.08 135.24
+                 A25.4231 2.95392 -102.41 0 0 44.23 110.2 A27.7847 9.86429 -26.79 0 0 26.54 128.14 A123.684 43.8677
+                 -98.31 0 0 30.96 105.72 a12.5105 0.527272 -16.92 1 0 -22.116 6.72664 A68.6524 39.3859 -25.17 0 0
+                 22.12 92.54 A33.5368 7.04228 -8.3 0 0 0 90.02 A22.9471 2.22166 -22.95 0 0 20.27 78.81 A47.1813 38.6246
+                 -6 0 0 0 65.36 A54.9062 23.4971 -177.4 0 0 23.96 65.36 A83.7028 35.4682 -142.76 0 0 8.85 41.07 Z">
+                    <GeometryDrawing.Pen>
+                        <Pen Thickness="1" Brush="Orange" />
+                    </GeometryDrawing.Pen>
+                    <GeometryDrawing.Brush>
+                        <LinearGradientBrush>
+                            <LinearGradientBrush.GradientStops>
+                                <GradientStop Offset="0.0" Color="Yellow" />
+                                <GradientStop Offset="1.0" Color="Gold" />
+                            </LinearGradientBrush.GradientStops>
+                        </LinearGradientBrush>
+                    </GeometryDrawing.Brush>
+                </GeometryDrawing>
+                <GeometryDrawing>
+                    <GeometryDrawing.Geometry>
+                        <EllipseGeometry Center="54,80.5" RadiusX="30" RadiusY="30" />
+                    </GeometryDrawing.Geometry>
+                    <GeometryDrawing.Pen>
+                        <Pen Thickness="1" Brush="Orange" />
+                    </GeometryDrawing.Pen>
+                    <GeometryDrawing.Brush>
+                        <RadialGradientBrush GradientOrigin="0.75,0.25">
+                            <RadialGradientBrush.GradientStops>
+                                <GradientStop Offset="0.0" Color="Yellow" />
+                                <GradientStop Offset="0.75" Color="Gold" />
+                                <GradientStop Offset="0.9" Color="Orange" />
+                                <GradientStop Offset="1.0" Color="Gold" />
+                            </RadialGradientBrush.GradientStops>
+                        </RadialGradientBrush>
+                    </GeometryDrawing.Brush>
+                </GeometryDrawing>
+            </DrawingGroup.Children>
+        </DrawingGroup>
+
+        <DrawingImage x:Key="ClockDrawing">
+            <DrawingImage.Drawing>
+                <DrawingGroup>
+                    <DrawingGroup.Children>
+                        <GeometryDrawing>
+                            <GeometryDrawing.Geometry>
+                                <EllipseGeometry Center="50,50" RadiusX="45" RadiusY="45" />
+                            </GeometryDrawing.Geometry>
+                            <GeometryDrawing.Brush>
+                                <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
+                                    <LinearGradientBrush.GradientStops>
+                                        <GradientStop Offset="0.0" Color="LightGray" />
+                                        <GradientStop Offset="0.5" Color="#CCCCFF" />
+                                    </LinearGradientBrush.GradientStops>
+                                </LinearGradientBrush>
+                            </GeometryDrawing.Brush>
+                            <GeometryDrawing.Pen>
+                                <Pen Thickness="5" Brush="Black" />
+                            </GeometryDrawing.Pen>
+                        </GeometryDrawing>
+                        <GeometryDrawing>
+                            <GeometryDrawing.Geometry>
+                                <LineGeometry StartPoint="50,50" EndPoint="50,10">
+                                    <LineGeometry.Transform>
+                                        <RotateTransform x:Name="ClockHandRotateTransform" Angle="0" CenterX="50" CenterY="50" />
+                                    </LineGeometry.Transform>
+                                </LineGeometry>
+                            </GeometryDrawing.Geometry>
+                            <GeometryDrawing.Pen>
+                                <Pen Brush="Black" Thickness="5" StartLineCap="Round" EndLineCap="Triangle"  />
+                            </GeometryDrawing.Pen>
+                        </GeometryDrawing>
+                        <GeometryDrawing>
+                            <GeometryDrawing.Geometry>
+                                <EllipseGeometry Center="50,50" RadiusX="45" RadiusY="45" />
+                            </GeometryDrawing.Geometry>
+                            <GeometryDrawing.Brush>
+                                <RadialGradientBrush GradientOrigin="0.75,0.25">
+                                    <RadialGradientBrush.GradientStops>
+                                        <GradientStop Offset="0.0" Color="#99FFFFFF" />
+                                        <GradientStop Offset="0.5" Color="Transparent" />
+                                        <GradientStop Offset="0.75" Color="#99FFFFFF" />
+                                        <GradientStop Offset="1.0" Color="#33000000" />
+                                    </RadialGradientBrush.GradientStops>
+                                </RadialGradientBrush>
+                            </GeometryDrawing.Brush>
+                        </GeometryDrawing>
+                        <GeometryDrawing>
+                            <GeometryDrawing.Geometry>
+                                <EllipseGeometry Center="50,50" RadiusX="45" RadiusY="45" />
+                            </GeometryDrawing.Geometry>
+                            <GeometryDrawing.Brush>
+                                <LinearGradientBrush StartPoint="0.75,0.1" EndPoint="0.25, 0.9">
+                                    <LinearGradientBrush.GradientStops>
+                                        <GradientStop Offset="0.0" Color="#99FFFFFF" />
+                                        <GradientStop Offset="0.5" Color="Transparent" />
+                                        <GradientStop Offset="1.0" Color="#99000000" />
+                                    </LinearGradientBrush.GradientStops>
+                                </LinearGradientBrush>
+                            </GeometryDrawing.Brush>
+                        </GeometryDrawing>
+                    </DrawingGroup.Children>
+                </DrawingGroup>
+            </DrawingImage.Drawing>
+        </DrawingImage>
+        <!-- </clock_resources> -->
+
+    </Application.Resources>
+</Application>
diff --git a/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/App.xaml.cs b/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/App.xaml.cs
@@ -0,0 +1,14 @@
+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace SDKSamples
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+
+}
diff --git a/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/AssemblyInfo.cs b/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+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)
+)]
diff --git a/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/MultiWindow.xaml b/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/MultiWindow.xaml
@@ -0,0 +1,45 @@
+<Window x:Class="SDKSamples.MultiWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Thread Hosted Window" Width="360" Height="180" SizeToContent="Height" ResizeMode="NoResize" Loaded="Window_Loaded">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
+        <TextBlock HorizontalAlignment="Right" Margin="30,0" Text="‼️" FontSize="50" FontWeight="ExtraBold"
+                   Foreground="Magenta" RenderTransformOrigin="0.5,0.5" Name="RotatedTextBlock">
+            <TextBlock.RenderTransform>
+                <RotateTransform Angle="0" />
+            </TextBlock.RenderTransform>
+            <TextBlock.Triggers>
+                <EventTrigger RoutedEvent="Loaded">
+                    <BeginStoryboard>
+                        <Storyboard>
+                            <DoubleAnimation Storyboard.TargetName="RotatedTextBlock"
+                                Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
+                                From="0" To="360" Duration="0:0:5" RepeatBehavior="Forever" />
+                        </Storyboard>
+                    </BeginStoryboard>
+                </EventTrigger>
+            </TextBlock.Triggers>
+        </TextBlock>
+
+        <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Margin="20" >
+            <Button Content="Pause" Click="PauseButton_Click" Margin="5,0" Padding="10,0" />
+            <TextBlock Margin="5,0,0,0" Text="&lt;-- Pause for 5 seconds" />
+        </StackPanel>
+
+        <StackPanel Grid.Row="1" Margin="10">
+            <Button Content="Create 'Same Thread' Window" Click="SameThreadWindow_Click" />
+            <Button Content="Create 'New Thread' Window" Click="NewThreadWindow_Click" Margin="0,10,0,0" />
+        </StackPanel>
+
+        <StatusBar Grid.Row="2" VerticalAlignment="Bottom">
+            <StatusBarItem Content="Thread ID" Name="ThreadStatusItem" />
+        </StatusBar>
+
+    </Grid>
+</Window>
diff --git a/...-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/MultiWindow.xaml.cs b/...-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/MultiWindow.xaml.cs
@@ -0,0 +1,45 @@
+//<full>
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace SDKSamples
+{
+    public partial class MultiWindow : Window
+    {
+        public MultiWindow() =>
+            InitializeComponent();
+
+        private void Window_Loaded(object sender, RoutedEventArgs e) =>
+            ThreadStatusItem.Content = $"Thread ID: {Thread.CurrentThread.ManagedThreadId}";
+
+        //<delay>
+        private void PauseButton_Click(object sender, RoutedEventArgs e) =>
+            Task.Delay(TimeSpan.FromSeconds(5)).Wait();
+        //</delay>
+
+        //<buttons>
+        private void SameThreadWindow_Click(object sender, RoutedEventArgs e) =>
+            new MultiWindow().Show();
+
+        private void NewThreadWindow_Click(object sender, RoutedEventArgs e)
+        {
+            Thread newWindowThread = new Thread(ThreadStartingPoint);
+            newWindowThread.SetApartmentState(ApartmentState.STA);
+            newWindowThread.IsBackground = true;
+            newWindowThread.Start();
+        }
+        //</buttons>
+
+        //<thread>
+        private void ThreadStartingPoint()
+        {
+            new MultiWindow().Show();
+
+            System.Windows.Threading.Dispatcher.Run();
+        }
+        //</thread>
+    }
+}
+//</full>
diff --git a/...op-guide/framework/wpf/advanced/snippets/threading-model/csharp/NestedPumpScreenShot.xaml b/...op-guide/framework/wpf/advanced/snippets/threading-model/csharp/NestedPumpScreenShot.xaml
@@ -0,0 +1,17 @@
+<Window x:Class="SDKSamples.NestedPumpScreenShot"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        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:local="clr-namespace:SDKSamples"
+        mc:Ignorable="d"
+        Title="Popup Demo" Height="Auto" Width="550" SizeToContent="Height">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+        <Button Margin="20" Width="100" Content="Popup" Click="Button_Click" />
+        <TextBlock Grid.Column="1" Margin="0,10,20,10" Text="This window repaints even though the code is blocked when 'Popup' is pressed, waiting for the 'MessageBox.Show' to return." TextWrapping="Wrap" />
+    </Grid>
+</Window>
diff --git a/...guide/framework/wpf/advanced/snippets/threading-model/csharp/NestedPumpScreenShot.xaml.cs b/...guide/framework/wpf/advanced/snippets/threading-model/csharp/NestedPumpScreenShot.xaml.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace SDKSamples
+{
+    /// <summary>
+    /// Interaction logic for NestedPumpScreenShot.xaml
+    /// </summary>
+    public partial class NestedPumpScreenShot : Window
+    {
+        public NestedPumpScreenShot()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            MessageBox.Show("Click OK to close the window and stop blocking");
+        }
+    }
+}
diff --git a/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/PrimeNumber.xaml b/dotnet-desktop-guide/framework/wpf/advanced/snippets/threading-model/csharp/PrimeNumber.xaml
@@ -0,0 +1,14 @@
+<Window x:Class="SDKSamples.PrimeNumber"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Prime Numbers" Width="360" Height="100">
+    <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Margin="20" >
+        <Button Content="Start"  
+                Click="StartStopButton_Click"
+                Name="StartStopButton"
+                Margin="5,0,5,0" Padding="10,0" />
+
+        <TextBlock Margin="10,0,0,0">Biggest Prime Found:</TextBlock>
+        <TextBlock Name="bigPrime" Margin="4,0,0,0">3</TextBlock>
+    </StackPanel>
+</Window>