Windows 10 Version 1709 - February 2018 Update

Samples/360VideoPlayback/cpp/Package.appxmanifest

@@ -11,7 +11,7 @@
   <Properties>
     <DisplayName>360 Video Playback C++ Sample</DisplayName>
     <PublisherDisplayName>Microsoft Corporation</PublisherDisplayName>
-    <Logo>Assets\StoreLogo.png</Logo>
+    <Logo>Assets\StoreLogo-sdk.png</Logo>
   </Properties>
   <Dependencies>
     <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.15063.0" MaxVersionTested="10.0.16299.0"/>

Samples/360VideoPlayback/cs/Common/DeviceResources.cs

@@ -66,12 +66,12 @@ namespace _360VideoPlayback.Common
 
             // Initialize Direct2D resources.
             var debugLevel = SharpDX.Direct2D1.DebugLevel.None;
-            //#if DEBUG
+            #if DEBUG
             if (DirectXHelper.SdkLayersAvailable())
             {
                 debugLevel = SharpDX.Direct2D1.DebugLevel.Information;
             }
-            //#endif
+            #endif
 
             // Initialize the Direct2D Factory.
             d2dFactory = this.ToDispose(

Samples/360VideoPlayback/cs/Package.appxmanifest

@@ -11,7 +11,7 @@
   <Properties>
     <DisplayName>360 Video Playback C# Sample</DisplayName>
     <PublisherDisplayName>Microsoft Corporation</PublisherDisplayName>
-    <Logo>Assets\StoreLogo.png</Logo>
+    <Logo>Assets\StoreLogo-sdk.png</Logo>
   </Properties>
   <Dependencies>
     <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.15063.0" MaxVersionTested="10.0.16299.0"/>

Samples/BarcodeScanner/cs/BarcodeScanner.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/BluetoothAdvertisement/js/BluetoothAdvertisement.sln

@@ -46,4 +46,3 @@ Global
 		HideSolutionNode = FALSE
 	EndGlobalSection
 EndGlobal
-

Samples/CameraGetPreviewFrame/cs/MainPage.xaml.cs

@@ -13,6 +13,7 @@ using System;
 using System.Diagnostics;
 using System.Linq;
 using System.Runtime.InteropServices;
+using System.Threading;
 using System.Threading.Tasks;
 using Windows.ApplicationModel;
 using Windows.Devices.Enumeration;
@@ -63,6 +64,7 @@ namespace CameraGetPreviewFrame
         private MediaCapture _mediaCapture;
         private bool _isInitialized = false;
         private bool _isPreviewing = false;
+        private static readonly SemaphoreSlim _mediaCaptureLifeLock = new SemaphoreSlim(1);
 
         // Information about the camera device
         private bool _mirroringPreview = false;
@@ -93,7 +95,7 @@ namespace CameraGetPreviewFrame
                 await CleanupCameraAsync();
 
                 _displayInformation.OrientationChanged -= DisplayInformation_OrientationChanged;
-                
+
                 deferral.Complete();
             }
         }
@@ -213,6 +215,8 @@ namespace CameraGetPreviewFrame
         {
             Debug.WriteLine("InitializeCameraAsync");
 
+            await _mediaCaptureLifeLock.WaitAsync();
+
             if (_mediaCapture == null)
             {
                 // Attempt to get the back camera if one is available, but use any camera device if not
@@ -221,6 +225,7 @@ namespace CameraGetPreviewFrame
                 if (cameraDevice == null)
                 {
                     Debug.WriteLine("No camera device found!");
+                    _mediaCaptureLifeLock.Release();
                     return;
                 }
 
@@ -242,6 +247,10 @@ namespace CameraGetPreviewFrame
                 {
                     Debug.WriteLine("The app was denied access to the camera");
                 }
+                finally
+                {
+                    _mediaCaptureLifeLock.Release();
+                }
 
                 // If initialization succeeded, start the preview
                 if (_isInitialized)
@@ -260,7 +269,7 @@ namespace CameraGetPreviewFrame
                         // Only mirror the preview if the camera is on the front panel
                         _mirroringPreview = (cameraDevice.EnclosureLocation.Panel == Windows.Devices.Enumeration.Panel.Front);
                     }
-                    
+
                     await StartPreviewAsync();
 
                     var picturesLibrary = await StorageLibrary.GetLibraryAsync(KnownLibraryId.Pictures);
@@ -268,6 +277,10 @@ namespace CameraGetPreviewFrame
                     _captureFolder = picturesLibrary.SaveFolder ?? ApplicationData.Current.LocalFolder;
                 }
             }
+            else
+            {
+                _mediaCaptureLifeLock.Release();
+            }
         }
 
         /// <summary>
@@ -436,24 +449,33 @@ namespace CameraGetPreviewFrame
         /// <returns></returns>
         private async Task CleanupCameraAsync()
         {
-            if (_isInitialized)
+            await _mediaCaptureLifeLock.WaitAsync();
+
+            try
             {
-                if (_isPreviewing)
+                if (_isInitialized)
                 {
-                    // The call to stop the preview is included here for completeness, but can be
-                    // safely removed if a call to MediaCapture.Dispose() is being made later,
-                    // as the preview will be automatically stopped at that point
-                    await StopPreviewAsync();
+                    if (_isPreviewing)
+                    {
+                        // The call to stop the preview is included here for completeness, but can be
+                        // safely removed if a call to MediaCapture.Dispose() is being made later,
+                        // as the preview will be automatically stopped at that point
+                        await StopPreviewAsync();
+                    }
+
+                    _isInitialized = false;
                 }
 
-                _isInitialized = false;
+                if (_mediaCapture != null)
+                {
+                    _mediaCapture.Failed -= MediaCapture_Failed;
+                    _mediaCapture.Dispose();
+                    _mediaCapture = null;
+                }
             }
-
-            if (_mediaCapture != null)
+            finally
             {
-                _mediaCapture.Failed -= MediaCapture_Failed;
-                _mediaCapture.Dispose();
-                _mediaCapture = null;
+                _mediaCaptureLifeLock.Release();
             }
         }
 

Samples/CameraResolution/cpp/SampleConfiguration.cpp

@@ -13,7 +13,13 @@
 #include "MainPage.xaml.h"
 #include "SampleConfiguration.h"
 
+using namespace Concurrency;
 using namespace SDKTemplate;
+using namespace Windows::Devices;
+using namespace Windows::Devices::Enumeration;
+using namespace Windows::Media::Capture;
+using namespace Windows::Media::MediaProperties;
+using namespace Windows::UI::Xaml::Controls;
 
 Platform::Array<Scenario>^ MainPage::scenariosInner = ref new Platform::Array<Scenario>
 {
@@ -21,3 +27,23 @@ Platform::Array<Scenario>^ MainPage::scenariosInner = ref new Platform::Array<Sc
     { "Change preview and photo settings", "SDKTemplate.Scenario2_PhotoSettings" },
     { "Match aspect ratios", "SDKTemplate.Scenario3_AspectRatio" }
 };
+
+/// <summary>
+/// Sets encoding properties on a camera stream. Ensures CaptureElement and preview stream are stopped before setting properties.
+/// </summary>
+task<void> MainPage::SetMediaStreamPropertiesAsync(MediaCapture^ mediaCapture, CaptureElement^ previewControl, MediaStreamType streamType, IMediaEncodingProperties^ encodingProperties)
+{
+    // Stop preview and unlink the CaptureElement from the MediaCapture object
+    return create_task(mediaCapture->StopPreviewAsync())
+        .then([this, mediaCapture, previewControl, streamType, encodingProperties]()
+    {
+        previewControl->Source = nullptr;
+        // Apply desired stream properties
+        return create_task(mediaCapture->VideoDeviceController->SetMediaStreamPropertiesAsync(streamType, encodingProperties));
+    }).then([this, mediaCapture, previewControl]() {
+        // Recreate the CaptureElement pipeline and restart the preview
+        previewControl->Source = mediaCapture;
+        return create_task(mediaCapture->StartPreviewAsync());
+    });
+}
+

Samples/CameraResolution/cpp/SampleConfiguration.h

@@ -35,6 +35,8 @@ namespace SDKTemplate
             }
         }
 
+        Concurrency::task<void> SetMediaStreamPropertiesAsync(Windows::Media::Capture::MediaCapture^ mediaCapture, Windows::UI::Xaml::Controls::CaptureElement^ previewControl, Windows::Media::Capture::MediaStreamType streamType, Windows::Media::MediaProperties::IMediaEncodingProperties ^ encodingProperties);
+
     private:
         static Platform::Array<Scenario>^ scenariosInner;
     };

Samples/CameraResolution/cpp/Scenario1_PreviewSettings.xaml.cpp

@@ -142,7 +142,7 @@ void Scenario1_PreviewSettings::ComboBoxSettings_Changed(Platform::Object^ sende
     {
         auto selectedItem = static_cast<ComboBoxItem^>(static_cast<ComboBox^>(sender)->SelectedItem);
         auto encodingProperties = static_cast<IMediaEncodingProperties^>(selectedItem->Tag);
-        create_task(_mediaCapture->VideoDeviceController->SetMediaStreamPropertiesAsync(MediaStreamType::VideoPreview, encodingProperties));
+        create_task(_rootPage->SetMediaStreamPropertiesAsync(_mediaCapture.Get(), PreviewControl, MediaStreamType::VideoPreview, encodingProperties));
     }
 }
 

Samples/CameraResolution/cpp/Scenario2_PhotoSettings.xaml.cpp

@@ -192,7 +192,7 @@ void Scenario2_PhotoSettings::PreviewSettings_Changed(Platform::Object^ sender,
     {
         auto selectedItem = static_cast<ComboBoxItem^>(static_cast<ComboBox^>(sender)->SelectedItem);
         auto encodingProperties = static_cast<IMediaEncodingProperties^>(selectedItem->Tag);
-        create_task(_mediaCapture->VideoDeviceController->SetMediaStreamPropertiesAsync(MediaStreamType::VideoPreview, encodingProperties));
+        create_task(_rootPage->SetMediaStreamPropertiesAsync(_mediaCapture.Get(), PreviewControl, MediaStreamType::VideoPreview, encodingProperties));
     }
 }
 
@@ -206,7 +206,7 @@ void Scenario2_PhotoSettings::PhotoSettings_Changed(Platform::Object^ sender, Wi
     {
         auto selectedItem = static_cast<ComboBoxItem^>(static_cast<ComboBox^>(sender)->SelectedItem);
         auto encodingProperties = static_cast<IMediaEncodingProperties^>(selectedItem->Tag);
-        create_task(_mediaCapture->VideoDeviceController->SetMediaStreamPropertiesAsync(MediaStreamType::Photo, encodingProperties));
+        create_task(_rootPage->SetMediaStreamPropertiesAsync(_mediaCapture.Get(), PreviewControl, MediaStreamType::Photo, encodingProperties));
     }
 }
 

Samples/CameraResolution/cpp/Scenario3_AspectRatio.xaml.cpp

@@ -210,7 +210,7 @@ void Scenario3_AspectRatio::PreviewSettings_Changed(Platform::Object^ sender, Wi
     {
         auto selectedItem = static_cast<ComboBoxItem^>(static_cast<ComboBox^>(sender)->SelectedItem);
         auto encodingProperties = static_cast<IMediaEncodingProperties^>(selectedItem->Tag);
-        create_task(_mediaCapture->VideoDeviceController->SetMediaStreamPropertiesAsync(MediaStreamType::VideoPreview, encodingProperties));
+        create_task(_rootPage->SetMediaStreamPropertiesAsync(_mediaCapture.Get(), PreviewControl, MediaStreamType::VideoPreview, encodingProperties));
 
         // The preview just changed, update the video combo box
         MatchPreviewAspectRatio();
@@ -227,7 +227,7 @@ void Scenario3_AspectRatio::VideoSettings_Changed(Platform::Object^ sender, Wind
     {
         auto selectedItem = static_cast<ComboBoxItem^>(static_cast<ComboBox^>(sender)->SelectedItem);
         auto encodingProperties = static_cast<IMediaEncodingProperties^>(selectedItem->Tag);
-        create_task(_mediaCapture->VideoDeviceController->SetMediaStreamPropertiesAsync(MediaStreamType::VideoRecord, encodingProperties));
+        create_task(_rootPage->SetMediaStreamPropertiesAsync(_mediaCapture.Get(), PreviewControl, MediaStreamType::VideoRecord, encodingProperties));
     }
 }
 

Samples/CameraResolution/cs/SampleConfiguration.cs

@@ -14,6 +14,7 @@ using System.Collections.Generic;
 using Windows.UI.Xaml.Controls;
 using Windows.Media.Capture;
 using Windows.UI.Core;
+using Windows.Media.MediaProperties;
 
 namespace SDKTemplate
 {
@@ -50,6 +51,22 @@ namespace SDKTemplate
         public bool IsRecording { get; set; }
         public MediaCapture MediaCapture { get; private set; }
 
+        /// <summary>
+        /// Sets encoding properties on a camera stream. Ensures CaptureElement and preview stream are stopped before setting properties.
+        /// </summary>
+        public async Task SetMediaStreamPropertiesAsync(MediaStreamType streamType, IMediaEncodingProperties encodingProperties)
+        {
+            // Stop preview and unlink the CaptureElement from the MediaCapture object
+            await MediaCapture.StopPreviewAsync();
+            _previewControl.Source = null;
+
+            // Apply desired stream properties
+            await MediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
+
+            // Recreate the CaptureElement pipeline and restart the preview
+            _previewControl.Source = MediaCapture;
+            await MediaCapture.StartPreviewAsync();
+        }
 
         /// <summary>
         /// Initializes the MediaCapture, starts preview.

Samples/CameraResolution/cs/Scenario1_PreviewSettings.xaml.cs

@@ -79,7 +79,7 @@ namespace SDKTemplate
             {
                 var selectedItem = (sender as ComboBox).SelectedItem as ComboBoxItem;
                 var encodingProperties = (selectedItem.Tag as StreamResolution).EncodingProperties;
-                await _previewer.MediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
+                await _previewer.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
             }
         }
 

Samples/CameraResolution/cs/Scenario2_PhotoSettings.xaml.cs

@@ -107,7 +107,7 @@ namespace SDKTemplate
             {
                 var selectedItem = (sender as ComboBox).SelectedItem as ComboBoxItem;
                 var encodingProperties = (selectedItem.Tag as StreamResolution).EncodingProperties;
-                await _previewer.MediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
+                await _previewer.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
             }
         }
 

Samples/CameraResolution/cs/Scenario3_AspectRatio.xaml.cs

@@ -111,7 +111,7 @@ namespace SDKTemplate
             {
                 var selectedItem = (sender as ComboBox).SelectedItem as ComboBoxItem;
                 var encodingProperties = (selectedItem.Tag as StreamResolution).EncodingProperties;
-                await _previewer.MediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
+                await _previewer.SetMediaStreamPropertiesAsync(MediaStreamType.VideoPreview, encodingProperties);
 
                 // The preview just changed, update the video combo box
                 MatchPreviewAspectRatio();

Samples/CameraResolution/js/js/Scenario1_PreviewSettings.js

@@ -84,7 +84,7 @@
             if (cameraSettings.value == "")
                 return;
 
-            mediaCapture.videoDeviceController.setMediaStreamPropertiesAsync(Capture.MediaStreamType.videoPreview, allProperties[cameraSettings.value]);
+            setMediaStreamPropertiesAsync(mediaCapture, Capture.MediaStreamType.videoPreview, allProperties[cameraSettings.value]);
         }
     }
     

Samples/CameraResolution/js/js/Scenario2_PhotoSettings.js

@@ -101,7 +101,7 @@
             if (previewSettings.value == "")
                 return;
 
-            mediaCapture.videoDeviceController.setMediaStreamPropertiesAsync(Capture.MediaStreamType.videoPreview, previewProperties[previewSettings.value]);
+            setMediaStreamPropertiesAsync(mediaCapture, Capture.MediaStreamType.videoPreview, previewProperties[previewSettings.value]);
         }
     }
 
@@ -114,7 +114,7 @@
             if (photoSettings.value == "")
                 return;
 
-            mediaCapture.videoDeviceController.setMediaStreamPropertiesAsync(Capture.MediaStreamType.videoPreview, photoProperties[photoSettings.value]);
+            setMediaStreamPropertiesAsync(mediaCapture, Capture.MediaStreamType.videoPreview, photoProperties[photoSettings.value]);
         }
     }
 

Samples/CameraResolution/js/js/Scenario3_AspectRatio.js

@@ -113,7 +113,7 @@
             if (previewSettings.value == "")
                 return;
             console.log(previewSettings.value)
-            mediaCapture.videoDeviceController.setMediaStreamPropertiesAsync(Capture.MediaStreamType.videoPreview, previewProperties[previewSettings.value]);
+            setMediaStreamPropertiesAsync(mediaCapture, Capture.MediaStreamType.videoPreview, previewProperties[previewSettings.value]);
 
             // The preview just changed, update the video combo box
             MatchPreviewAspectRatio();
@@ -128,7 +128,7 @@
             // The first element is just text
             if (videoSettings.value == "")
                 return;
-            mediaCapture.videoDeviceController.setMediaStreamPropertiesAsync(Capture.MediaStreamType.videoRecord, videoProperties[videoSettings.value]);
+            setMediaStreamPropertiesAsync(mediaCapture, Capture.MediaStreamType.videoRecord, videoProperties[videoSettings.value]);
         }
     }
 

Samples/CameraResolution/js/js/StreamResolutionHelper.js

@@ -61,3 +61,23 @@ streamResolutionHelper.prototype.frameRate = function () {
 streamResolutionHelper.prototype.aspectRatio = function () {
     return (this.width() / this.height()).toFixed(2);
 }
+
+/// <summary>
+/// Sets encoding properties on a camera stream. Ensures VideoElement and preview stream are stopped before setting properties.
+/// </summary>
+function setMediaStreamPropertiesAsync(mediaCapture, streamType, encodingProperties) {
+    // Stop preview and unlink the VideoElement from the MediaCapture object
+    var previewVidTag = document.getElementById("cameraPreview");
+    previewVidTag.pause;
+    previewVidTag.src = null;
+
+    // Apply desired stream properties
+    return mediaCapture.videoDeviceController.setMediaStreamPropertiesAsync(streamType, encodingProperties)
+        .then(function () {
+            // Recreate pipeline and restart the preview
+            var previewVidTag = document.getElementById("cameraPreview");
+            var previewUrl = URL.createObjectURL(mediaCapture);
+            previewVidTag.src = previewUrl;
+            previewVidTag.play();
+        });
+}

Samples/CashDrawer/cs/CashDrawer.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/ContactPanel/cs/ContactPanel.csproj

@@ -12,7 +12,7 @@
     <DefaultLanguage>en-US</DefaultLanguage>
     <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
     <TargetPlatformVersion>10.0.16299.0</TargetPlatformVersion>
-    <TargetPlatformMinVersion>10.0.15063.0</TargetPlatformMinVersion>
+    <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
     <MinimumVisualStudioVersion>15</MinimumVisualStudioVersion>
     <EnableDotNetNativeCompatibleProfile>true</EnableDotNetNativeCompatibleProfile>
     <FileAlignment>512</FileAlignment>

Samples/ContactPanel/cs/Package.appxmanifest

@@ -21,7 +21,7 @@
     </Properties>
 
     <Dependencies>
-        <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.15063.0" MaxVersionTested="10.0.15063.0" />
+        <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.15063.0" MaxVersionTested="10.0.16299.0" />
     </Dependencies>
 
     <Resources>

Samples/ContentIndexer/cs/ContentIndexer.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/ContextMenu/cs/ContextMenu.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/CustomHidDeviceAccess/cs/CustomHidDeviceAccess.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/CustomSerialDeviceAccess/cs/CustomSerialDeviceAccess.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/CustomUsbDeviceAccess/cs/CustomUsbDeviceAccess.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -53,5 +52,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/Geolocation/cs/Geolocation.sln

@@ -52,5 +52,3 @@ Global
 		HideSolutionNode = FALSE
 	EndGlobalSection
 EndGlobal
-
-

Samples/HolographicMixedRealityCapture/cpp/Common/DeviceResources.cpp

@@ -15,8 +15,12 @@ using namespace Windows::Graphics::Holographic;
 static const std::wstring s_VertexShaderFiles[DX::VertexShader_Max] = 
 {
     L"ms-appx:///VertexShader.cso",
-    L"ms-appx:///VprtVertexShader.cso",
     L"ms-appx:///VertexShaderTexture.cso",
+};
+
+static const std::wstring s_VprtVertexShaderFiles[DX::VertexShader_Max] =
+{
+    L"ms-appx:///VprtVertexShader.cso",
     L"ms-appx:///VprtVertexShaderTexture.cso"
 };
 
@@ -393,7 +397,7 @@ Concurrency::task<void> DX::DeviceResources::LoadShaders()
     // Load vertex shaders and input layouts
     for (int i = 0; i < VertexShader_Max; i++)
     {
-        Concurrency::task<std::vector<byte>> loadVSTask = DX::ReadDataAsync(s_VertexShaderFiles[i]);
+        Concurrency::task<std::vector<byte>> loadVSTask = DX::ReadDataAsync(m_supportsVprt ? s_VprtVertexShaderFiles[i] : s_VertexShaderFiles[i]);
 
         Concurrency::task<void> createVSTask = loadVSTask.then([this, i](const std::vector<byte>& fileData)
         {
@@ -407,7 +411,6 @@ Concurrency::task<void> DX::DeviceResources::LoadShaders()
             switch (i)
             {
             case VertexShader_Simple:
-            case VertexShader_VPRT:
                 {
                     const D3D11_INPUT_ELEMENT_DESC vertexDesc[] =
                     {
@@ -425,7 +428,6 @@ Concurrency::task<void> DX::DeviceResources::LoadShaders()
                 }
                 break;
             case VertexShader_Texture:
-            case VertexShader_TextureVPRT:
                 {
                     const D3D11_INPUT_ELEMENT_DESC vertexDesc[] =
                     {

Samples/HolographicMixedRealityCapture/cpp/Common/DeviceResources.h

@@ -9,9 +9,7 @@ namespace DX
     typedef enum
     {
         VertexShader_Simple = 0,
-        VertexShader_VPRT,
         VertexShader_Texture,
-        VertexShader_TextureVPRT,
         VertexShader_Max
     } VertexShaderIndex;
 

Samples/HolographicMixedRealityCapture/cpp/Content/Button.cpp

@@ -220,8 +220,8 @@ void Button::DoCreateDeviceDependentResources()
     // target array index, thus avoiding any overhead that would be 
     // incurred by setting the geometry shader stage.
 
-    m_vertexShader = m_deviceResources->GetVertexShader(m_usingVprtShaders ? DX::VertexShader_TextureVPRT : DX::VertexShader_Texture);
-    m_inputLayout = m_deviceResources->GetInputLayout(m_usingVprtShaders ? DX::VertexShader_TextureVPRT : DX::VertexShader_Texture);
+    m_vertexShader = m_deviceResources->GetVertexShader(DX::VertexShader_Texture);
+    m_inputLayout = m_deviceResources->GetInputLayout(DX::VertexShader_Texture);
     m_pixelShader = m_deviceResources->GetPixelShader(DX::PixelShader_Texture);
 
     D3D11_TEXTURE2D_DESC texDesc;

Samples/HolographicMixedRealityCapture/cpp/Content/Cursor.cpp

@@ -154,8 +154,8 @@ void Cursor::CreateDeviceDependentResources()
     // target array index, thus avoiding any overhead that would be 
     // incurred by setting the geometry shader stage.
 
-    m_vertexShader = m_deviceResources->GetVertexShader(m_usingVprtShaders ? DX::VertexShader_TextureVPRT : DX::VertexShader_Texture);
-    m_inputLayout = m_deviceResources->GetInputLayout(m_usingVprtShaders ? DX::VertexShader_TextureVPRT : DX::VertexShader_Texture);
+    m_vertexShader = m_deviceResources->GetVertexShader(DX::VertexShader_Texture);
+    m_inputLayout = m_deviceResources->GetInputLayout(DX::VertexShader_Texture);
     m_pixelShader = m_deviceResources->GetPixelShader(DX::PixelShader_Cursor);
 
     D3D11_TEXTURE2D_DESC texDesc;

Samples/HolographicMixedRealityCapture/cpp/Content/Panel.cpp

@@ -145,8 +145,8 @@ void Panel::DoCreateDeviceDependentResources()
     // target array index, thus avoiding any overhead that would be 
     // incurred by setting the geometry shader stage.
 
-    m_vertexShader = m_deviceResources->GetVertexShader(m_usingVprtShaders ? DX::VertexShader_VPRT : DX::VertexShader_Simple);
-    m_inputLayout  = m_deviceResources->GetInputLayout(m_usingVprtShaders ? DX::VertexShader_VPRT : DX::VertexShader_Simple);
+    m_vertexShader = m_deviceResources->GetVertexShader(DX::VertexShader_Simple);
+    m_inputLayout  = m_deviceResources->GetInputLayout(DX::VertexShader_Simple);
     m_pixelShader  = m_deviceResources->GetPixelShader(DX::PixelShader_Simple);
 
     if (!m_usingVprtShaders)

Samples/HolographicMixedRealityCapture/cpp/Content/SpinningCubeRenderer.cpp

@@ -166,8 +166,8 @@ void SpinningCubeRenderer::CreateDeviceDependentResources()
     // target array index, thus avoiding any overhead that would be 
     // incurred by setting the geometry shader stage.
 
-    m_vertexShader = m_deviceResources->GetVertexShader(m_usingVprtShaders ? DX::VertexShader_VPRT : DX::VertexShader_Simple);
-    m_inputLayout = m_deviceResources->GetInputLayout(m_usingVprtShaders ? DX::VertexShader_VPRT : DX::VertexShader_Simple);
+    m_vertexShader = m_deviceResources->GetVertexShader(DX::VertexShader_Simple);
+    m_inputLayout = m_deviceResources->GetInputLayout(DX::VertexShader_Simple);
     m_pixelShader = m_deviceResources->GetPixelShader(DX::PixelShader_Simple);
 
     if (!m_usingVprtShaders)

Samples/HolographicMixedRealityCapture/cpp/HolographicMRCSampleMain.cpp

@@ -517,8 +517,8 @@ void HolographicMRCSampleMain::OnButtonInitTapped()
     {
         Concurrency::create_task(m_mediaCapture->InitializeAsync()).then([this]()
         {
-            m_photoButton->SetEnabled(true);
-            m_videoButton->SetEnabled(true);
+            m_photoButton->SetEnabled(m_mediaCapture->CanTakePhoto());
+            m_videoButton->SetEnabled(m_mediaCapture->CanToggleVideo());
             m_hologramButton->SetEnabled(true);
             m_sysAudioButton->SetEnabled(true);
         });
@@ -544,7 +544,7 @@ void HolographicMRCSampleMain::OnButtonVideoTapped()
 
                 m_initButton->SetEnabled(false);
                 m_photoButton->SetEnabled(m_mediaCapture->CanTakePhoto());
-                m_videoButton->SetEnabled(true);
+                m_videoButton->SetEnabled(m_mediaCapture->CanToggleVideo());
                 m_hologramButton->SetEnabled(true);
                 m_sysAudioButton->SetEnabled(true);
             });
@@ -565,7 +565,7 @@ void HolographicMRCSampleMain::OnButtonVideoTapped()
 
                 m_initButton->SetEnabled(false);
                 m_photoButton->SetEnabled(m_mediaCapture->CanTakePhoto());
-                m_videoButton->SetEnabled(true);
+                m_videoButton->SetEnabled(m_mediaCapture->CanToggleVideo());
                 m_hologramButton->SetEnabled(false);
                 m_sysAudioButton->SetEnabled(false);
             });
@@ -587,7 +587,7 @@ void HolographicMRCSampleMain::OnButtonPhotoTapped()
         {
             m_initButton->SetEnabled(false);
             m_photoButton->SetEnabled(m_mediaCapture->CanTakePhoto());
-            m_videoButton->SetEnabled(true);
+            m_videoButton->SetEnabled(m_mediaCapture->CanToggleVideo());
             m_hologramButton->SetEnabled(true);
             m_sysAudioButton->SetEnabled(true);
         });

Samples/HolographicMixedRealityCapture/cpp/MediaCaptureManager.cpp

@@ -49,7 +49,16 @@ Concurrency::task<void> MediaCaptureManager::InitializeAsync(IMFDXGIDeviceManage
     return Concurrency::create_task(m_mediaCapture->InitializeAsync(initSetting)).then([this]()
     {
         auto lock = m_lock.LockExclusive();
-        m_currentState = Initialized;
+
+        if (m_mediaCapture->MediaCaptureSettings->AudioDeviceId && m_mediaCapture->MediaCaptureSettings->VideoDeviceId)
+        {
+            // MediaCapture is initialized with valid audio and video device.
+            m_currentState = Initialized;
+        }
+        else
+        {
+            OutputDebugString(L"MediaCapture is initialized without valid sources.\n");
+        }
     });
 }
 
@@ -295,14 +304,21 @@ bool MediaCaptureManager::CanTakePhoto()
 
     if (m_currentState == Initialized)
     {
-        OutputDebugString(L"Can Take Photo\n");
         ret = true;
     }
-    else
-    {
-        OutputDebugString(L"Can NOT Take Photo\n");
-        ret = false;
-    }
+
+    return ret;
+}
+
+bool MediaCaptureManager::CanToggleVideo()
+{
+    auto lock = m_lock.LockShared();
+    bool ret = false;
+
+    if (m_currentState == Initialized || m_currentState == Recording)
+    {
+        ret = true;
+    }
 
     return ret;
 }

Samples/HolographicMixedRealityCapture/cpp/MediaCaptureManager.h

@@ -35,6 +35,7 @@ namespace HolographicMRCSample
         bool IsHologramEnabled()    { auto lock = m_lock.LockShared(); return m_hologramEnabled; }
         bool IsSystemAudioEnabled() { auto lock = m_lock.LockShared(); return m_sysAudioEnabled; }
         bool CanTakePhoto();
+        bool CanToggleVideo();
 
     private:
         Microsoft::WRL::Wrappers::SRWLock m_lock;

Samples/HomeGroup/cs/HomeGroup.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/MagneticStripeReader/cs/MagneticStripeReader.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/MapControl/cpp/Scenario2.xaml.cpp

@@ -29,7 +29,7 @@ Scenario2::Scenario2()
 
     mapIconStreamReference = RandomAccessStreamReference::CreateFromUri(ref new Uri("ms-appx:///Assets/MapPin.png"));
     mapBillboardStreamReference = RandomAccessStreamReference::CreateFromUri(ref new Uri("ms-appx:///Assets/billboard.jpg"));
-    mapModelStreamReference = RandomAccessStreamReference::CreateFromUri(ref new Uri("ms-appx:///Assets/ConkerAfro.3mf"));
+    mapModelStreamReference = RandomAccessStreamReference::CreateFromUri(ref new Uri("ms-appx:///Assets/box.3mf"));
 }
 
 void Scenario2::MyMap_Loaded(Object^ sender, RoutedEventArgs^ e)

Samples/MapControl/cs/MapControl.csproj

@@ -281,7 +281,7 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
     <Content Include="..\shared\box.3mf">
-      <Link>Assets\ConkerAfro.3mf</Link>
+      <Link>Assets\box.3mf</Link>
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
     <Content Include="..\shared\MyCustomStates.json">

Samples/MessageDialog/cs/MessageDialogSample.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/PdfDocument/shared/Scenario1_Render.xaml

@@ -32,12 +32,18 @@
                 
                 <StackPanel x:Name="RenderingPanel" Visibility="Collapsed">
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock VerticalAlignment="center">View page</TextBlock>
-                        <TextBox x:Name="PageNumberBox" InputScope="Number" Width="30" Text="1" TextAlignment="Right" Margin="5,0,5,0"/>
+                        <TextBlock Name="ViewPageLabel" VerticalAlignment="center">View page</TextBlock>
+                        <!-- Always give a TextBox a name that's accessible to a screen reader. In this case,
+                             reference the labeling TextBlock to have the accessible name set on the TextBox. -->
+                        <TextBox x:Name="PageNumberBox" InputScope="Number" Width="30" Text="1" TextAlignment="Right" Margin="5,0,5,0"
+                            AutomationProperties.LabeledBy="{Binding ElementName=ViewPageLabel}"/>
                         <TextBlock VerticalAlignment="Center">of <Run x:Name="PageCountText"/>.</TextBlock>
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <ComboBox x:Name="Options" SelectedIndex="0">
+                        <!-- Always give a ComboBox a name that's accessible to a screen reader. Given that there's no labeling
+                             TextBlock to reference, explicitly set the accessible name on the ComboBox. A shipping app would
+                             localize this name. -->                        
+                        <ComboBox x:Name="Options" AutomationProperties.Name="View page size" SelectedIndex="0">
                             <ComboBoxItem>Actual size</ComboBoxItem>
                             <ComboBoxItem>Half size on beige background</ComboBoxItem>
                             <ComboBoxItem>Crop to center of page</ComboBoxItem>
@@ -45,7 +51,9 @@
                         <Button Click="{x:Bind ViewPage}" Content="View" Margin="10,0,0,0"/>
                     </StackPanel>
 
-                    <Image x:Name="Output" Stretch="None" Margin="0,10,0,0"/>
+                    <!-- Always give an Image a name that's accessible to screen reader, (unless the Image is purely decorative.) 
+                         A shipping app would localize this name.-->
+                    <Image x:Name="Output" AutomationProperties.Name="PDF document content" Stretch="None" Margin="0,10,0,0"/>
                 </StackPanel>
                 <ProgressRing x:Name="ProgressControl" Height="50" Width="50" IsActive="True" Visibility="Collapsed" Margin="0,10,0,0"/>
             </StackPanel>

Samples/Printing/cpp/PageToPrint.xaml

@@ -55,11 +55,10 @@
         <RichTextBlockOverflow x:Name="ContinuationPageLinkedContainer" Grid.Row="3" Grid.ColumnSpan="2"/>
         <Image Source="ms-appx:///Assets/print_1.png" x:Name="ScenarioImage" HorizontalAlignment="Center" Grid.Row="2" Grid.Column="1" Margin="10"/>
 
-        <StackPanel x:Name="Footer" Grid.Row="4" Grid.Column="0" VerticalAlignment="Top" Visibility="Collapsed">
-            <Image Source="ms-appx:///Assets/splash-sdk.png" HorizontalAlignment="Left" Stretch="None"/>
-            <RichTextBlock Foreground="Black" FontSize="16" TextAlignment="Left" FontFamily="Segoe UI">
-                <Paragraph>Copyright © Microsoft Corporation. All rights reserved.</Paragraph>
-            </RichTextBlock>
+        <StackPanel x:Name="Footer" Grid.Row="4" Grid.ColumnSpan="2">
+            <TextBlock Foreground="Black" FontSize="16" TextAlignment="Left" FontFamily="Segoe UI">
+                Copyright © Microsoft Corporation. All rights reserved.
+            </TextBlock>
         </StackPanel>
     </Grid>
 </Page>

Samples/Printing/cpp/PrintHelper.cpp

@@ -209,7 +209,8 @@ RichTextBlockOverflow^ PrintHelper::AddOnePrintPreviewPage(RichTextBlockOverflow
     {
         // If this is the first page add the specific scenario content
         page = FirstPage;
-        //Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
+
+        // Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
         StackPanel^ footer = safe_cast<StackPanel^>(page->FindName("Footer"));
         footer->Visibility = Windows::UI::Xaml::Visibility::Collapsed;
     }
@@ -248,6 +249,7 @@ RichTextBlockOverflow^ PrintHelper::AddOnePrintPreviewPage(RichTextBlockOverflow
     {
         StackPanel^ footer = safe_cast<StackPanel^>(page->FindName("Footer"));
         footer->Visibility = Windows::UI::Xaml::Visibility::Visible;
+        PrintCanvas->UpdateLayout();
     }
 
     // Add the page to the page preview collection

Samples/Printing/cpp/Scenario6DisablePreview.xaml.cpp

@@ -103,7 +103,8 @@ RichTextBlockOverflow^ PreviewOptionsPrintHelper::AddOnePrintPage(RichTextBlockO
     {
         // If this is the first page add the specific scenario content
         page = FirstPage;
-        //Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
+
+        // Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
         StackPanel^ footer = safe_cast<StackPanel^>(page->FindName("Footer"));
         footer->Visibility = Visibility::Collapsed;
     }
@@ -142,6 +143,7 @@ RichTextBlockOverflow^ PreviewOptionsPrintHelper::AddOnePrintPage(RichTextBlockO
     {
         StackPanel^ footer = safe_cast<StackPanel^>(page->FindName("Footer"));
         footer->Visibility = Visibility::Visible;
+        PrintCanvas->UpdateLayout();
     }
 
     // Add the page to the page print collection

Samples/Printing/cs/PageToPrint.xaml

@@ -65,11 +65,10 @@
         <RichTextBlockOverflow x:Name="ContinuationPageLinkedContainer" Grid.Row="3" Grid.ColumnSpan="2"/>
         <Image Source="ms-appx:///Assets/print_1.png" x:Name="ScenarioImage" HorizontalAlignment="Center" Grid.Row="2" Grid.Column="1" Margin="10"/>
 
-        <StackPanel x:Name="Footer" Grid.Row="4" Grid.Column="0" VerticalAlignment="Top" Visibility="Collapsed">
-            <Image Source="ms-appx:///Assets/splash-sdk.png" HorizontalAlignment="Left" Stretch="None"/>
-            <RichTextBlock Foreground="Black" FontSize="16" TextAlignment="Left" FontFamily="Segoe UI">
-                <Paragraph>Copyright © Microsoft Corporation. All rights reserved.</Paragraph>
-            </RichTextBlock>
+        <StackPanel x:Name="Footer" Grid.Row="4" Grid.ColumnSpan="2">
+            <TextBlock Foreground="Black" FontSize="16" TextAlignment="Left" FontFamily="Segoe UI">
+                Copyright © Microsoft Corporation. All rights reserved.
+            </TextBlock>
         </StackPanel>
     </Grid>
 </Page>

Samples/Printing/cs/PrintHelper.cs

@@ -273,7 +273,8 @@ namespace PrintSample
             {
                 // If this is the first page add the specific scenario content
                 page = firstPage;
-                //Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
+
+                // Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
                 StackPanel footer = (StackPanel)page.FindName("Footer");
                 footer.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
             }
@@ -312,6 +313,7 @@ namespace PrintSample
             {
                 StackPanel footer = (StackPanel)page.FindName("Footer");
                 footer.Visibility = Windows.UI.Xaml.Visibility.Visible;
+                PrintCanvas.UpdateLayout();
             }
 
             // Add the page to the page preview collection

Samples/Printing/cs/Scenario6DisablePreview.xaml.cs

@@ -144,7 +144,8 @@ namespace PrintSample
             {
                 // If this is the first page add the specific scenario content
                 page = firstPage;
-                //Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
+
+                // Hide footer since we don't know yet if it will be displayed (this might not be the last page) - wait for layout
                 StackPanel footer = (StackPanel)page.FindName("Footer");
                 footer.Visibility = Visibility.Collapsed;
             }
@@ -183,6 +184,7 @@ namespace PrintSample
             {
                 StackPanel footer = (StackPanel)page.FindName("Footer");
                 footer.Visibility = Visibility.Visible;
+                PrintCanvas.UpdateLayout();
             }
 
             // Add the page to the print page collection

Samples/RadialController/shared/Scenario1_EventAndMenuHookup.xaml

@@ -49,65 +49,81 @@
 
             <ScrollViewer Grid.Row="1">
                 <StackPanel Orientation="Vertical">
-                    <GridView IsItemClickEnabled="False" SelectionMode="None">
+
+                    <!-- Provide an AutomationProperties.Name for a GridView to a screen reader. A shipping app would localize this. -->
+                    <GridView AutomationProperties.Name="Radial Controller Events Hookup" IsItemClickEnabled="False" SelectionMode="None">
                         <GridView.ItemsPanel>
                             <ItemsPanelTemplate>
                                 <ItemsWrapGrid Orientation="Horizontal" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" />
                             </ItemsPanelTemplate>
                         </GridView.ItemsPanel>
 
-                        <StackPanel Style="{StaticResource ButtonGroup}">
-                            <Image Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item0.png"/>
+                        <!-- All shipping GridView items must have helpful, concise, localized and unique accessible names, so that 
+                             a screen reader can make your customers aware of their purpose. Given that this sample defines each item
+                             here, (are the items are not databound,) set the accessible names on each item explicitly. This sample 
+                             contains placeholder text which would be replaced with appropriate localized text by a shipping app. -->
+
+                        <!-- All shipping Images, Sliders, and ToggleSwitches must have helpful, concise, localized and unique
+                             accessible names, so that a screen reader can make your customers aware of their purpose. This sample
+                             contains placeholder text which would be replaced with appropriate localized text by a shipping app. -->
+                        
+                        <StackPanel AutomationProperties.Name="Item 0 details" Style="{StaticResource ButtonGroup}">
+                            <Image AutomationProperties.Name="Item 0 Image accessible name" Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item0.png"/>
                             <Button Content="Add Item 0" Click="AddItem" CommandParameter="0"/>
                             <Button Content="Select Item 0" Click="SelectItem" CommandParameter="0"/>
                             <Button Content="Remove Item 0" Click="RemoveItem" CommandParameter="0"/>
-                            <Slider x:Name="slider0" />
-                            <ToggleSwitch x:Name="toggle0" />
+                            <Slider AutomationProperties.Name="Item 0 Slider accessible name" x:Name="slider0" />
+                            <ToggleSwitch x:Name="toggle0" AutomationProperties.Name="Item 0 ToggleSwitch accessible name" />
                         </StackPanel>
 
-                        <StackPanel Style="{StaticResource ButtonGroup}">
-                            <Image Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item1.png"/>
+                        <StackPanel AutomationProperties.Name="Item 1 details" Style="{StaticResource ButtonGroup}">
+                            <Image AutomationProperties.Name="Item 1 Image accessible name" Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item1.png"/>
                             <Button Content="Add Item 1" Click="AddItem" CommandParameter="1"/>
                             <Button Content="Select Item 1" Click="SelectItem" CommandParameter="1"/>
                             <Button Content="Remove Item 1" Click="RemoveItem" CommandParameter="1"/>
-                            <Slider x:Name="slider1" />
-                            <ToggleSwitch x:Name="toggle1" />
+                            <Slider AutomationProperties.Name="Item 1 Slider accessible name" x:Name="slider1" />
+                            <ToggleSwitch x:Name="toggle1" AutomationProperties.Name="Item 1 ToggleSwitch accessible name" />
                         </StackPanel>
 
-                        <StackPanel Style="{StaticResource ButtonGroup}">
-                            <Image Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item2.png"/>
+                        <StackPanel AutomationProperties.Name="Item 2 details" Style="{StaticResource ButtonGroup}">
+                            <Image AutomationProperties.Name="Item 2 Image accessible name" Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item2.png"/>
                             <Button Content="Add Item 2" Click="AddItem" CommandParameter="2"/>
                             <Button Content="Select Item 2" Click="SelectItem" CommandParameter="2"/>
                             <Button Content="Remove Item 2" Click="RemoveItem" CommandParameter="2"/>
-                            <Slider x:Name="slider2" />
-                            <ToggleSwitch x:Name="toggle2" />
+                            <Slider AutomationProperties.Name="Item 2 Slider accessible name" x:Name="slider2" />
+                            <ToggleSwitch x:Name="toggle2" AutomationProperties.Name="Item 2 ToggleSwitch accessible name" />
                         </StackPanel>
 
-                        <StackPanel Style="{StaticResource ButtonGroup}">
-                            <Image Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item3.png"/>
+                        <StackPanel AutomationProperties.Name="Item 3 details" Style="{StaticResource ButtonGroup}">
+                            <Image AutomationProperties.Name="Item 3 Image accessible name" Height="64" Width="64" HorizontalAlignment="Left" Source="Assets\Item3.png"/>
                             <Button Content="Add Item 3" Click="AddItem" CommandParameter="3"/>
                             <Button Content="Select Item 3" Click="SelectItem" CommandParameter="3"/>
                             <Button Content="Remove Item 3" Click="RemoveItem" CommandParameter="3"/>
-                            <Slider x:Name="slider3" />
-                            <ToggleSwitch x:Name="toggle3" />
+                            <Slider AutomationProperties.Name="Item 3 Slider accessible name" x:Name="slider3" />
+                            <ToggleSwitch x:Name="toggle3" AutomationProperties.Name="Item 3 ToggleSwitch accessible name" />
                         </StackPanel>
 
-                        <StackPanel Style="{StaticResource ButtonGroup}">
-                            <TextBlock Height="64" Width="64" HorizontalAlignment="Left" FontFamily="Segoe UI Emoji" FontSize="45" Text="&#x2764;"/>
+                        <!-- There's no guarantee that a symbolic character from some font will be pronounced by a screen reader 
+                             in a helpful way. So set helpful, concise, localized and uniqueaccessible names on the TextBlocks
+                             so that a screen reader can make your customers aware of their purpose. This sample contains 
+                             placeholder text which would be replaced with appropriate localized text by a shipping app. -->
+
+                        <StackPanel AutomationProperties.Name="Item 4 details" Style="{StaticResource ButtonGroup}">
+                            <TextBlock AutomationProperties.Name="Item 4 TextBlock accessible name" Height="64" Width="64" HorizontalAlignment="Left" FontFamily="Segoe UI Emoji" FontSize="45" Text="&#x2764;"/>
                             <Button Content="Add Item 4" Click="AddItem" CommandParameter="4"/>
                             <Button Content="Select Item 4" Click="SelectItem" CommandParameter="4"/>
                             <Button Content="Remove Item 4" Click="RemoveItem" CommandParameter="4"/>
-                            <Slider x:Name="slider4" />
-                            <ToggleSwitch x:Name="toggle4" />
+                            <Slider AutomationProperties.Name="Item 4 Slider accessible name" x:Name="slider4" />
+                            <ToggleSwitch x:Name="toggle4" AutomationProperties.Name="Item 4 ToggleSwitch accessible name" />
                         </StackPanel>
 
-                        <StackPanel Style="{StaticResource ButtonGroup}">
-                            <TextBlock Height="64" Width="64" HorizontalAlignment="Left" FontFamily="Assets\fontawesome-webfont.ttf#FontAwesome" FontSize="57" Text="&#xf0a1;"/>
+                        <StackPanel AutomationProperties.Name="Item 5 details" Style="{StaticResource ButtonGroup}">
+                            <TextBlock AutomationProperties.Name="Item 5 TextBlock accessible name" Height="64" Width="64" HorizontalAlignment="Left" FontFamily="Assets\fontawesome-webfont.ttf#FontAwesome" FontSize="57" Text="&#xf0a1;"/>
                             <Button Content="Add Item 5" Click="AddItem" CommandParameter="5"/>
                             <Button Content="Select Item 5" Click="SelectItem" CommandParameter="5"/>
                             <Button Content="Remove Item 5" Click="RemoveItem" CommandParameter="5"/>
-                            <Slider x:Name="slider5" />
-                            <ToggleSwitch x:Name="toggle5" />
+                            <Slider AutomationProperties.Name="Item 5 Slider accessible name" x:Name="slider5" />
+                            <ToggleSwitch x:Name="toggle5" AutomationProperties.Name="Item 5 ToggleSwitch accessible name" />
                         </StackPanel>
                     </GridView>
 
@@ -121,7 +137,7 @@
                     <StackPanel Style="{StaticResource PaddedPanel}">
                         <TextBlock FontSize="20">Log</TextBlock>
                         <ScrollViewer x:Name="logViewer" Grid.Column="0" MaxHeight="300" Padding="0,0,20,0">
-                            <TextBlock x:Name="log" SizeChanged="OnLogSizeChanged"/>
+                            <TextBlock x:Name="log" SizeChanged="OnLogSizeChanged" />
                         </ScrollViewer>
                     </StackPanel>
                 </StackPanel>

Samples/SemanticTextQuery/cs/SemanticTextQuery.sln

@@ -1,5 +1,4 @@
 
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26228.4
@@ -39,5 +38,3 @@ Global
         HideSolutionNode = FALSE
     EndGlobalSection
 EndGlobal
-
-

Samples/SmartCard/cs/Scenario1_ProvisionTPM.xaml

@@ -36,47 +36,58 @@
             <ScrollViewer Grid.Row="1" VerticalScrollMode="Auto" VerticalScrollBarVisibility="Auto">
                 <StackPanel Orientation="Vertical" VerticalAlignment="Top">
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Friendly Name" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <TextBox x:Name="FriendlyName" Text="My Virtual Smart Card" HorizontalAlignment="Left"/>
+                        <TextBlock Name="FriendlyNameLabel" Text="Friendly Name" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <!-- Always give a TextBox a name that's accessible to a screen reader. In this case,
+                             reference the labeling TextBlock to have the accessible name set on the TextBox. -->
+                        <TextBox x:Name="FriendlyName" Text="My Virtual Smart Card" HorizontalAlignment="Left"
+                            AutomationProperties.LabeledBy="{Binding ElementName=FriendlyNameLabel}" />
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Minimum PIN length" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <TextBox x:Name="PinMinLength" InputScope="Number" Text="8" HorizontalAlignment="Left"/>
+                        <TextBlock Name="PinMinLengthLabel" Text="Minimum PIN length" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <TextBox x:Name="PinMinLength" InputScope="Number" Text="8" HorizontalAlignment="Left"
+                            AutomationProperties.LabeledBy="{Binding ElementName=PinMinLengthLabel}" />
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Maximum PIN length" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <TextBox x:Name="PinMaxLength" InputScope="Number" Text="127" HorizontalAlignment="Left"/>
+                        <TextBlock Name="PinMaxLengthLabel" Text="Maximum PIN length" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <TextBox x:Name="PinMaxLength" InputScope="Number" Text="127" HorizontalAlignment="Left"
+                            AutomationProperties.LabeledBy="{Binding ElementName=PinMaxLengthLabel}" />
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
                         <TextBlock Text="Character Set" HorizontalAlignment="Left" />
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Uppercase" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <ComboBox x:Name="PinUppercase" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center">
+                        <TextBlock Name="PinUppercaseLabel" Text="Uppercase" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <!-- Always give a ComboBox a name that's accessible to a screen reader. In this case,
+                             reference the labeling TextBlock to have the accessible name set on the ComboBox. -->
+                        <ComboBox x:Name="PinUppercase" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center"
+                            AutomationProperties.LabeledBy="{Binding ElementName=PinUppercaseLabel}">
                             <x:String>Disallowed</x:String>
                             <x:String>Allowed</x:String>
                             <x:String>Require At Least One</x:String>
                         </ComboBox>
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Lowercase" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <ComboBox x:Name="PinLowercase" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center">
+                        <TextBlock Name="PinLowercaseLabel" Text="Lowercase" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <ComboBox x:Name="PinLowercase" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center"
+                            AutomationProperties.LabeledBy="{Binding ElementName=PinLowercaseLabel}">
                             <x:String>Disallowed</x:String>
                             <x:String>Allowed</x:String>
                             <x:String>Require At Least One</x:String>
                         </ComboBox>
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Digits" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <ComboBox x:Name="PinDigits" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center">
+                        <TextBlock Name="PinDigitsLabel" Text="Digits" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <ComboBox x:Name="PinDigits" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center"
+                            AutomationProperties.LabeledBy="{Binding ElementName=PinDigitsLabel}">
                             <x:String>Disallowed</x:String>
                             <x:String>Allowed</x:String>
                             <x:String>Require At Least One</x:String>
                         </ComboBox>
                     </StackPanel>
                     <StackPanel Orientation="Horizontal" Margin="0,10,0,0">
-                        <TextBlock Text="Special" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
-                        <ComboBox x:Name="PinSpecial" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center">
+                        <TextBlock Name="PinSpecialLabel" Text="Special" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center" Width="85"/>
+                        <ComboBox x:Name="PinSpecial" SelectedIndex="1" HorizontalAlignment="Left" VerticalAlignment="Center"
+                            AutomationProperties.LabeledBy="{Binding ElementName=PinSpecialLabel}">
                             <x:String>Disallowed</x:String>
                             <x:String>Allowed</x:String>
                             <x:String>Require At Least One</x:String>

Samples/SpatialSound/cpp/Scenario1_OmnidirectionalSound.xaml

@@ -36,20 +36,27 @@
             <Border x:Name="ErrorBorder" Background="Red" Grid.Row="2"/>
             <TextBlock x:Name="StatusBlock" Grid.Row="2" Margin="12, 10, 12, 10" Visibility="Collapsed"/>
         </Grid>
-        <Button Content="Play" Click="PlayButton_Click" HorizontalAlignment="Left" Margin="93,273,0,335" Width="47"/>
-        <Button Content="Stop" Click="StopButton_Click" HorizontalAlignment="Left" Margin="189,273,0,335" Width="50"/>
-        <Slider x:Name="RadiusSlider" HorizontalAlignment="Left" Margin="9,213,0,0" VerticalAlignment="Top" Width="152" Maximum="10" LargeChange="1" Value="1" ValueChanged="RadiusSlider_ValueChanged" SmallChange="0.1" TickFrequency="1" StepFrequency="0.1"/>
-        <ComboBox x:Name="EnvironmentComboBox" HorizontalAlignment="Left" Margin="9,100,0,0" VerticalAlignment="Top" Width="160" IsDropDownOpen="True" SelectionChanged="EnvironmentComboBox_SelectionChanged">
+        <!-- Always give ComboBoxes and Sliders names that are accessible to a screen reader.
+             In this case, reference the labeling TextBlocks to have the accessible names set 
+             on the ComboBoxes and Sliders. -->
+        <TextBlock x:Name="textBlock1" HorizontalAlignment="Left" Margin="10,74,0,0" TextWrapping="Wrap" Text="Environment" VerticalAlignment="Top"/>
+        <ComboBox x:Name="EnvironmentComboBox" HorizontalAlignment="Left" Margin="9,100,0,0" VerticalAlignment="Top" Width="160" IsDropDownOpen="True" SelectionChanged="EnvironmentComboBox_SelectionChanged"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock1}">
             <x:String>Small Room</x:String>
             <x:String>Medium Room</x:String>
             <x:String>Large Room</x:String>
             <x:String>Outdoors</x:String>
         </ComboBox>
-        <TextBlock x:Name="textBlock" HorizontalAlignment="Left" Margin="9,203,0,0" TextWrapping="Wrap" Text="Radius of Orbit" VerticalAlignment="Top"/>
-        <TextBlock x:Name="textBlock1" HorizontalAlignment="Left" Margin="10,74,0,0" TextWrapping="Wrap" Text="Environment" VerticalAlignment="Top"/>
         <TextBlock x:Name="textBlock2" HorizontalAlignment="Left" Margin="9,149,0,0" TextWrapping="Wrap" Text="Speed of Orbit in Seconds" VerticalAlignment="Top"/>
-        <Slider x:Name="RotationSpeedSlider" HorizontalAlignment="Left" Margin="10,159,0,0" VerticalAlignment="Top" Width="152" Maximum="20" LargeChange="1" ValueChanged="RotationSpeedSlider_ValueChanged" SmallChange="0.5"/>
-        <Slider x:Name="HeightSlider" HorizontalAlignment="Left" Margin="191,213,0,0" VerticalAlignment="Top" Width="152" Minimum="-10" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="HeightSlider_ValueChanged"/>
+        <Slider x:Name="RotationSpeedSlider" HorizontalAlignment="Left" Margin="10,159,0,0" VerticalAlignment="Top" Width="152" Maximum="20" LargeChange="1" ValueChanged="RotationSpeedSlider_ValueChanged" SmallChange="0.5"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock2}"/>
+        <TextBlock x:Name="textBlock" HorizontalAlignment="Left" Margin="9,203,0,0" TextWrapping="Wrap" Text="Radius of Orbit" VerticalAlignment="Top"/>
+        <Slider x:Name="RadiusSlider" HorizontalAlignment="Left" Margin="9,213,0,0" VerticalAlignment="Top" Width="152" Maximum="10" LargeChange="1" Value="1" ValueChanged="RadiusSlider_ValueChanged" SmallChange="0.1" TickFrequency="1" StepFrequency="0.1"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock}"/>
         <TextBlock x:Name="textBlock3" HorizontalAlignment="Left" Margin="191,203,0,0" TextWrapping="Wrap" Text="Height of Orbit" VerticalAlignment="Top"/>
+        <Slider x:Name="HeightSlider" HorizontalAlignment="Left" Margin="191,213,0,0" VerticalAlignment="Top" Width="152" Minimum="-10" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="HeightSlider_ValueChanged"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock3}"/>
+        <Button Content="Play" Click="PlayButton_Click" HorizontalAlignment="Left" Margin="93,273,0,335" Width="47"/>
+        <Button Content="Stop" Click="StopButton_Click" HorizontalAlignment="Left" Margin="189,273,0,335" Width="50"/>
     </Grid>
 </Page>

Samples/SpatialSound/cpp/Scenario2_CardioidSound.xaml

@@ -26,32 +26,47 @@
         </Grid.ColumnDefinitions>
         <TextBlock x:Name="textBlock" HorizontalAlignment="Left" Margin="10,10,0,0" TextWrapping="Wrap" Text="Description:" VerticalAlignment="Top" FontSize="26.667" Height="35" Width="140"/>
         <TextBlock x:Name="textBlock1" HorizontalAlignment="Left" Margin="10,50,0,0" TextWrapping="Wrap" Text="Source with cardioid directivity pattern" VerticalAlignment="Top" FontSize="13.333" Height="18" Width="229"/>
-        <Slider x:Name="ScalingSlider" HorizontalAlignment="Left" Margin="10,177,0,0" VerticalAlignment="Top" Width="160" LargeChange="0.5" Maximum="1" SmallChange="0.1" StepFrequency="0.1" TickFrequency="0.1" Height="44" ValueChanged="ScalingSlider_ValueChanged" ToolTipService.ToolTip="0 is Omnidirectional and 1 is fully directional"/>
-        <Slider x:Name="OrderSlider" HorizontalAlignment="Left" Margin="189,177,0,0" VerticalAlignment="Top" Width="160" LargeChange="0.5" Maximum="32" SmallChange="0.1" StepFrequency="0.1" Minimum="0.1" Height="44" TickFrequency="0.1" ValueChanged="OrderSlider_ValudChanged" ToolTipService.ToolTip="Higher the order, narrower the directivity pattern"/>
-        <ComboBox x:Name="EnvironmentComboBox" HorizontalAlignment="Left" Margin="10,115,0,0" VerticalAlignment="Top" Width="160" SelectionChanged="EnvironmentComboBox_SelectionChanged" Height="28">
+        <!-- Always give ComboBoxes and Sliders names that are accessible to a screen reader.
+             In this case, reference the labeling TextBlocks to have the accessible names set 
+             on the ComboBoxes and Sliders. -->
+        <TextBlock x:Name="textBlock4" HorizontalAlignment="Left" Margin="10,90,0,0" TextWrapping="Wrap" Text="Environment" VerticalAlignment="Top"/>
+        <ComboBox x:Name="EnvironmentComboBox" HorizontalAlignment="Left" Margin="10,115,0,0" VerticalAlignment="Top" Width="160" SelectionChanged="EnvironmentComboBox_SelectionChanged" Height="28"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock4}">
             <x:String>Small Room</x:String>
             <x:String>Medium Room</x:String>
             <x:String>Large Room</x:String>
             <x:String>Outdoors</x:String>
         </ComboBox>
-        <Slider x:Name="YawSlider" HorizontalAlignment="Left" Margin="10,337,0,0" VerticalAlignment="Top" Width="100" Maximum="6.283185307" SmallChange="0.5" Height="44" ValueChanged="YawSlider_ValueChanged" LargeChange="0.5"/>
-        <Slider x:Name="PitchSlider" HorizontalAlignment="Left" Margin="120,337,0,0" VerticalAlignment="Top" Width="100" Maximum="6.283185307" SmallChange="0.5" Height="44" ValueChanged="PitchSlider_ValueChanged" LargeChange="0.5"/>
-        <Slider x:Name="RollSlider" HorizontalAlignment="Left" Margin="235,337,0,0" VerticalAlignment="Top" Width="100" Maximum="6.283185307" SmallChange="0.5" Height="44" ValueChanged="RollSlider_ValueChanged" LargeChange="0.5"/>
-        <Button x:Name="PlayButton" Content="Play" HorizontalAlignment="Left" Margin="93,396,0,0" VerticalAlignment="Top" Height="32" Width="47" Click="PlayButton_Click"/>
-        <Button x:Name="StopButton" Content="Stop" HorizontalAlignment="Left" Margin="189,396,0,0" VerticalAlignment="Top" Height="32" Width="50" Click="StopButton_Click"/>
         <TextBlock x:Name="textBlock2" HorizontalAlignment="Left" Margin="10,164,0,0" TextWrapping="Wrap" Text="Directivity Scaling" VerticalAlignment="Top"/>
+        <Slider x:Name="ScalingSlider" HorizontalAlignment="Left" Margin="10,177,0,0" VerticalAlignment="Top" Width="160" LargeChange="0.5" Maximum="1" SmallChange="0.1" StepFrequency="0.1" TickFrequency="0.1" Height="44" ValueChanged="ScalingSlider_ValueChanged" ToolTipService.ToolTip="0 is Omnidirectional and 1 is fully directional"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock2}" />
         <TextBlock x:Name="textBlock3" HorizontalAlignment="Left" Margin="189,164,0,0" TextWrapping="Wrap" Text="Cardioid Order" VerticalAlignment="Top"/>
-        <TextBlock x:Name="textBlock4" HorizontalAlignment="Left" Margin="10,90,0,0" TextWrapping="Wrap" Text="Environment" VerticalAlignment="Top"/>
-        <TextBlock x:Name="textBlock5" HorizontalAlignment="Left" Margin="10,326,0,0" TextWrapping="Wrap" Text="Yaw" VerticalAlignment="Top"/>
-        <TextBlock x:Name="textBlock6" HorizontalAlignment="Left" Margin="137,326,0,0" TextWrapping="Wrap" Text="Pitch" VerticalAlignment="Top"/>
-        <TextBlock x:Name="textBlock7" HorizontalAlignment="Left" Margin="250,326,0,0" TextWrapping="Wrap" Text="Roll" VerticalAlignment="Top"/>
-        <TextBlock x:Name="textBlock8" HorizontalAlignment="Left" Margin="10,300,0,0" TextWrapping="Wrap" Text="Source Orientation in Radians" VerticalAlignment="Top"/>
+        <Slider x:Name="OrderSlider" HorizontalAlignment="Left" Margin="189,177,0,0" VerticalAlignment="Top" Width="160" 
+                LargeChange="0.5" Maximum="32" SmallChange="0.1" StepFrequency="0.1" Minimum="0.1" Height="44" TickFrequency="0.1" 
+                ValueChanged="OrderSlider_ValudChanged" 
+                ToolTipService.ToolTip="Higher the order, narrower the directivity pattern"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock3}" />
         <TextBlock x:Name="textBlock9" HorizontalAlignment="Left" Margin="10,220,0,0" TextWrapping="Wrap" Text="Source Position in Meters" VerticalAlignment="Top"/>
         <TextBlock x:Name="textBlock10" HorizontalAlignment="Left" Margin="10,252,0,364" TextWrapping="Wrap" Text="X:" VerticalAlignment="Center" Height="24" Width="25"/>
+        <Slider x:Name="SourcePositionXSlider" HorizontalAlignment="Left" Margin="30,244,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="SourcePositionX_ValueChanged" Minimum="-10"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock10}" />
         <TextBlock x:Name="textBlock11" HorizontalAlignment="Left" Margin="126,253,0,0" TextWrapping="Wrap" Text="Y:" VerticalAlignment="Top" Width="27"/>
+        <Slider x:Name="SourcePositionYSlider" HorizontalAlignment="Left" Margin="149,244,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="SourcePositionY_ValueChanged" Minimum="-10"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock11}" />
         <TextBlock x:Name="textBlock12" HorizontalAlignment="Left" Margin="250,253,0,0" TextWrapping="Wrap" Text="Z:" VerticalAlignment="Top"/>
-        <Slider x:Name="SourcePositionXSlider" HorizontalAlignment="Left" Margin="30,244,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="SourcePositionX_ValueChanged" Minimum="-10"/>
-        <Slider x:Name="SourcePositionYSlider" HorizontalAlignment="Left" Margin="149,244,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="SourcePositionY_ValueChanged" Minimum="-10"/>
-        <Slider x:Name="SourcePositionZSlider" HorizontalAlignment="Left" Margin="269,244,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="SourcePositionZ_ValueChanged" Minimum="-10"/>
+        <Slider x:Name="SourcePositionZSlider" HorizontalAlignment="Left" Margin="269,244,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" ValueChanged="SourcePositionZ_ValueChanged" Minimum="-10"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock12}" />
+        <TextBlock x:Name="textBlock8" HorizontalAlignment="Left" Margin="10,300,0,0" TextWrapping="Wrap" Text="Source Orientation in Radians" VerticalAlignment="Top"/>
+        <TextBlock x:Name="textBlock5" HorizontalAlignment="Left" Margin="10,326,0,0" TextWrapping="Wrap" Text="Yaw" VerticalAlignment="Top"/>
+        <Slider x:Name="YawSlider" HorizontalAlignment="Left" Margin="10,337,0,0" VerticalAlignment="Top" Width="100" Maximum="6.283185307" SmallChange="0.5" Height="44" ValueChanged="YawSlider_ValueChanged" LargeChange="0.5"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock5}" />
+        <TextBlock x:Name="textBlock6" HorizontalAlignment="Left" Margin="137,326,0,0" TextWrapping="Wrap" Text="Pitch" VerticalAlignment="Top"/>
+        <Slider x:Name="PitchSlider" HorizontalAlignment="Left" Margin="120,337,0,0" VerticalAlignment="Top" Width="100" Maximum="6.283185307" SmallChange="0.5" Height="44" ValueChanged="PitchSlider_ValueChanged" LargeChange="0.5"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock6}" />
+        <TextBlock x:Name="textBlock7" HorizontalAlignment="Left" Margin="250,326,0,0" TextWrapping="Wrap" Text="Roll" VerticalAlignment="Top"/>
+        <Slider x:Name="RollSlider" HorizontalAlignment="Left" Margin="235,337,0,0" VerticalAlignment="Top" Width="100" Maximum="6.283185307" SmallChange="0.5" Height="44" ValueChanged="RollSlider_ValueChanged" LargeChange="0.5"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock7}" />
+        <Button x:Name="PlayButton" Content="Play" HorizontalAlignment="Left" Margin="93,396,0,0" VerticalAlignment="Top" Height="32" Width="47" Click="PlayButton_Click"/>
+        <Button x:Name="StopButton" Content="Stop" HorizontalAlignment="Left" Margin="189,396,0,0" VerticalAlignment="Top" Height="32" Width="50" Click="StopButton_Click"/>
     </Grid>
 </Page>

Samples/SpatialSound/cpp/Scenario3_CustomDecay.xaml

@@ -25,8 +25,12 @@
         </Grid.ColumnDefinitions>
         <TextBlock HorizontalAlignment="Left" Margin="10,10,0,0" TextWrapping="Wrap" Text="Description:" VerticalAlignment="Top" FontSize="26.667" Height="35" Width="140"/>
         <TextBlock x:Name="textBlock" HorizontalAlignment="Left" Margin="10,50,0,0" TextWrapping="Wrap" Text="Source with custom decay" VerticalAlignment="Top" FontSize="13.333" Height="18" Width="229"/>
+        <!-- Always give ComboBoxes and Sliders names that are accessible to a screen reader.
+             In this case, reference the labeling TextBlocks to have the accessible names set 
+             on the ComboBoxes and Sliders. -->
         <TextBlock x:Name="textBlock4" HorizontalAlignment="Left" Margin="10,90,0,0" TextWrapping="Wrap" Text="HRTF Environment" VerticalAlignment="Top"/>
-        <ComboBox x:Name="EnvironmentComboBox" HorizontalAlignment="Left" Margin="10,115,0,0" VerticalAlignment="Top" Width="160" Height="28" SelectionChanged="EnvironmentComboBox_SelectionChanged">
+        <ComboBox x:Name="EnvironmentComboBox" HorizontalAlignment="Left" Margin="10,115,0,0" VerticalAlignment="Top" Width="160" Height="28" SelectionChanged="EnvironmentComboBox_SelectionChanged"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock4}">
             <x:String>Small Room</x:String>
             <x:String>Medium Room</x:String>
             <x:String>Large Room</x:String>
@@ -34,13 +38,16 @@
         </ComboBox>
         <TextBlock x:Name="textBlock9" HorizontalAlignment="Left" Margin="10,169,0,0" TextWrapping="Wrap" Text="Source Position in Meters" VerticalAlignment="Top"/>
         <TextBlock x:Name="textBlock10" HorizontalAlignment="Left" Margin="10,201,0,415" TextWrapping="Wrap" Text="X:" VerticalAlignment="Center" Height="24" Width="25"/>
+        <Slider x:Name="SourcePositionXSlider" HorizontalAlignment="Left" Margin="30,193,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" Minimum="-10" ValueChanged="SourcePositionX_ValueChanged"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock10}" />
         <TextBlock x:Name="textBlock11" HorizontalAlignment="Left" Margin="126,202,0,0" TextWrapping="Wrap" Text="Y:" VerticalAlignment="Top" Width="27"/>
+        <Slider x:Name="SourcePositionYSlider" HorizontalAlignment="Left" Margin="149,193,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" Minimum="-10" ValueChanged="SourcePositionY_ValueChanged"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock11}" />
         <TextBlock x:Name="textBlock12" HorizontalAlignment="Left" Margin="250,202,0,0" TextWrapping="Wrap" Text="Z:" VerticalAlignment="Top"/>
-        <Slider x:Name="SourcePositionXSlider" HorizontalAlignment="Left" Margin="30,193,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" Minimum="-10" ValueChanged="SourcePositionX_ValueChanged"/>
-        <Slider x:Name="SourcePositionYSlider" HorizontalAlignment="Left" Margin="149,193,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" Minimum="-10" ValueChanged="SourcePositionY_ValueChanged"/>
-        <Slider x:Name="SourcePositionZSlider" HorizontalAlignment="Left" Margin="269,193,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" Minimum="-10" ValueChanged="SourcePositionZ_ValueChanged"/>
+        <Slider x:Name="SourcePositionZSlider" HorizontalAlignment="Left" Margin="269,193,0,0" VerticalAlignment="Top" Width="80" Height="44" Maximum="10" LargeChange="1" SmallChange="0.5" Minimum="-10" ValueChanged="SourcePositionZ_ValueChanged"
+            AutomationProperties.LabeledBy="{Binding ElementName=textBlock12}" />
         <Button x:Name="PlayButton" Content="Play" HorizontalAlignment="Left" Margin="93,252,0,0" VerticalAlignment="Top" Height="32" Width="47" Click="PlayButton_Click"/>
         <Button x:Name="StopButton" Content="Stop" HorizontalAlignment="Left" Margin="189,252,0,0" VerticalAlignment="Top" Height="32" Width="50" Click="StopButton_Click"/>
     </Grid>
-
+    
 </Page>

Samples/TouchKeyboard/cs/TouchKeyboard.csproj

@@ -11,7 +11,7 @@
     <DefaultLanguage>en-US</DefaultLanguage>
     <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
     <TargetPlatformVersion>10.0.16299.0</TargetPlatformVersion>
-    <TargetPlatformMinVersion>10.0.15063.0</TargetPlatformMinVersion>
+    <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
     <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
     <EnableDotNetNativeCompatibleProfile>true</EnableDotNetNativeCompatibleProfile>
     <FileAlignment>512</FileAlignment>

Samples/VoIP/cs/Voip/Voip.csproj

@@ -12,7 +12,7 @@
     <DefaultLanguage>en-US</DefaultLanguage>
     <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
     <TargetPlatformVersion>10.0.16299.0</TargetPlatformVersion>
-    <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
+    <TargetPlatformMinVersion>10.0.15063.0</TargetPlatformMinVersion>
     <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
     <EnableDotNetNativeCompatibleProfile>false</EnableDotNetNativeCompatibleProfile>
     <FileAlignment>512</FileAlignment>

Samples/VoIP/cs/VoipBackEnd/VoipBackEnd.vcxproj

@@ -36,7 +36,7 @@
     <AppContainerApplication>true</AppContainerApplication>
     <ApplicationType>Windows Store</ApplicationType>
     <WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
-    <WindowsTargetPlatformMinVersion>10.0.16299.0</WindowsTargetPlatformMinVersion>
+    <WindowsTargetPlatformMinVersion>10.0.15063.0</WindowsTargetPlatformMinVersion>
     <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

Samples/VoIP/cs/VoipHost/VoipHost.vcxproj

@@ -42,7 +42,7 @@
     <AppContainerApplication>true</AppContainerApplication>
     <ApplicationType>Windows Store</ApplicationType>
     <WindowsTargetPlatformVersion>10.0.16299.0</WindowsTargetPlatformVersion>
-    <WindowsTargetPlatformMinVersion>10.0.16299.0</WindowsTargetPlatformMinVersion>
+    <WindowsTargetPlatformMinVersion>10.0.15063.0</WindowsTargetPlatformMinVersion>
     <ApplicationTypeRevision>10.0</ApplicationTypeRevision>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

Samples/VoIP/cs/VoipTasks/VoipTasks.csproj

@@ -12,7 +12,7 @@
     <DefaultLanguage>en-US</DefaultLanguage>
     <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
     <TargetPlatformVersion>10.0.16299.0</TargetPlatformVersion>
-    <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
+    <TargetPlatformMinVersion>10.0.15063.0</TargetPlatformMinVersion>
     <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{A5A43C5B-DE2A-4C0C-9213-0A381AF9435A};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>

Samples/XamlDataVirtualization/cs/Scenario1/ItemCacheManager.cs

@@ -298,7 +298,9 @@ namespace DataVirtualizationSample
                 else
                 {
                     // Cancel the existing request
+#if TRACE_DATASOURCE
                     Debug.WriteLine(">" + debugName + " Cancelling request: " + requestInProgress.FirstIndex + "->" + requestInProgress.LastIndex);
+#endif
                     cancelTokenSource.Cancel();
                 }
             }

Samples/XamlDataVirtualization/cs/Scenario1/ItemIndexRangeExtensions.cs

@@ -24,7 +24,19 @@ namespace DataVirtualizationSample
 
         public static bool ContiguousOrOverlaps(this ItemIndexRange This, ItemIndexRange range)
         {
-            return (range.FirstIndex >= This.FirstIndex && range.FirstIndex <= This.LastIndex + 1) || (range.LastIndex + 1 >= This.FirstIndex && range.LastIndex <= This.LastIndex);
+            // This is left
+            if(This.FirstIndex < range.FirstIndex)
+            {
+                return (range.FirstIndex <= This.LastIndex + 1);
+            }
+            // This is right
+            else if (This.FirstIndex > range.FirstIndex)
+            {
+                return (This.FirstIndex <= range.LastIndex + 1);
+            }
+
+            // Aligned
+            return true;
         }
 
         public static bool Intersects(this ItemIndexRange This, ItemIndexRange range)

Samples/XamlUIBasics/README.md

@@ -32,6 +32,8 @@ To obtain information about Microsoft Visual Studio and the tools for developing
 
 Each control page in the application has links to the relevant MSDN documentation for that control.
 
+[Install a prebuilt version of this sample](https://www.microsoft.com/store/productId/9MSVH128X2ZT).
+
 ## Related samples
 
 [RSS reader sample](https://github.com/Microsoft/Windows-appsample-rssreader)  

Samples/XamlUIBasics/cs/AppUIBasics/AppUIBasics.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26228.4
+VisualStudioVersion = 15.0.27004.2002
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AppUIBasics", "AppUIBasics.csproj", "{D40690AC-37E8-5492-9D42-85042FB025E4}"
 EndProject
@@ -37,4 +37,7 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {5B033CDA-6491-405C-A05B-CEE6AC4060B9}
+	EndGlobalSection
 EndGlobal