Today, we released a new Windows 10 Preview Build of the SDK to be used in conjunction with Windows 10 Insider Preview (Build 18309 or greater). The Preview SDK Build 18309 contains bug fixes and under development changes to the API surface area.

The Preview SDK can be downloaded from developer section on Windows Insider.

For feedback and updates to the known issues, please see the developer forum. For new developer feature requests, head over to our Windows Platform UserVoice

Things to note:

• This build works in conjunction with previously released SDKs and Visual Studio 2017. You can install this SDK and still also continue to submit your apps that target Windows 10 build 1809 or earlier to the Microsoft Store.
• The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download Visual Studio 2017 here.
• This build of the Windows SDK will install on Windows 10 Insider Preview builds and supported Windows operating systems.
• In order to assist with script access to the SDK, the ISO will also be able to be accessed through the following URL: https://go.microsoft.com/fwlink/?prd=11966&pver=1.0&plcid=0x409&clcid=0x409&ar=Flight&sar=Sdsurl&o1=18309 once the static URL is published.

Tools Updates

Message Compiler (mc.exe)

• The “-mof” switch (to generate XP-compatible ETW helpers) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated ETW helpers to expect Vista or later.
• The “-A” switch (to generate .BIN files using ANSI encoding instead of Unicode) is considered to be deprecated and will be removed in a future version of mc.exe. Removing this switch will cause the generated .BIN files to use Unicode string encoding.
• The behavior of the “-A” switch has changed. Prior to Windows 1607 Anniversary Update SDK, when using the -A switch, BIN files were encoded using the build system’s ANSI code page. In the Windows 1607 Anniversary Update SDK, mc.exe’s behavior was inadvertently changed to encode BIN files using the build system’s OEM code page. In the 19H1 SDK, mc.exe’s previous behavior has been restored and it now encodes BIN files using the build system’s ANSI code page. Note that the -A switch is deprecated, as ANSI-encoded BIN files do not provide a consistent user experience in multi-lingual systems.

Breaking Changes

Change to effect graph of the AcrylicBrush

In this Preview SDK, we’ll be adding a blend mode to the effect graph of the AcrylicBrush called Luminosity. This blend mode will ensure that shadows do not appear behind acrylic surfaces without a cutout. We will also be exposing a LuminosityBlendOpacity API available for tweaking that allows for more AcrylicBrush customization.

By default, for those that have not specified any LuminosityBlendOpacity on their AcrylicBrushes, we have implemented some logic to ensure that the Acrylic will look as similar as it can to current 1809 acrylics. Please note that we will be updating our default brushes to account for this recipe change.

TraceLoggingProvider.h  / TraceLoggingWrite

Events generated by TraceLoggingProvider.h (e.g. via TraceLoggingWrite macros) will now always have Id and Version set to 0.

Previously, TraceLoggingProvider.h would assign IDs to events at link time. These IDs were unique within a DLL or EXE, but changed from build to build and from module to module.

API Updates, Additions and Removals

Additions:

namespace Windows.AI.MachineLearning {
  public sealed class LearningModelSession : IClosable {
    public LearningModelSession(LearningModel model, LearningModelDevice deviceToRunOn, LearningModelSessionOptions learningModelSessionOptions);
  }
  public sealed class LearningModelSessionOptions
  public sealed class TensorBoolean : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorBoolean CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorBoolean CreateFromShapeArrayAndDataArray(long[] shape, bool[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorDouble : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorDouble CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorDouble CreateFromShapeArrayAndDataArray(long[] shape, double[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorFloat : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorFloat CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorFloat CreateFromShapeArrayAndDataArray(long[] shape, float[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorFloat16Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorFloat16Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorFloat16Bit CreateFromShapeArrayAndDataArray(long[] shape, float[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorInt16Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorInt16Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorInt16Bit CreateFromShapeArrayAndDataArray(long[] shape, short[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorInt32Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
   public static TensorInt32Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorInt32Bit CreateFromShapeArrayAndDataArray(long[] shape, int[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorInt64Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorInt64Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorInt64Bit CreateFromShapeArrayAndDataArray(long[] shape, long[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorInt8Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorInt8Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorInt8Bit CreateFromShapeArrayAndDataArray(long[] shape, byte[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorString : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorString CreateFromShapeArrayAndDataArray(long[] shape, string[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorUInt16Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorUInt16Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorUInt16Bit CreateFromShapeArrayAndDataArray(long[] shape, ushort[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorUInt32Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorUInt32Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorUInt32Bit CreateFromShapeArrayAndDataArray(long[] shape, uint[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorUInt64Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorUInt64Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorUInt64Bit CreateFromShapeArrayAndDataArray(long[] shape, ulong[] data);
    IMemoryBufferReference CreateReference();
  }
  public sealed class TensorUInt8Bit : IClosable, ILearningModelFeatureValue, IMemoryBuffer, ITensor {
    void Close();
    public static TensorUInt8Bit CreateFromBuffer(long[] shape, IBuffer buffer);
    public static TensorUInt8Bit CreateFromShapeArrayAndDataArray(long[] shape, byte[] data);
    IMemoryBufferReference CreateReference();
  }
}
namespace Windows.ApplicationModel {
  public sealed class Package {
    StorageFolder EffectiveLocation { get; }
    StorageFolder MutableLocation { get; }
  }
}
namespace Windows.ApplicationModel.AppService {
  public sealed class AppServiceConnection : IClosable {
    public static IAsyncOperation<StatelessAppServiceResponse> SendStatelessMessageAsync(AppServiceConnection connection, RemoteSystemConnectionRequest connectionRequest, ValueSet message);
  }
  public sealed class AppServiceTriggerDetails {
    string CallerRemoteConnectionToken { get; }
  }
  public sealed class StatelessAppServiceResponse
  public enum StatelessAppServiceResponseStatus
}
namespace Windows.ApplicationModel.Background {
  public sealed class ConversationalAgentTrigger : IBackgroundTrigger
}
namespace Windows.ApplicationModel.Calls {
  public sealed class PhoneLine {
    string TransportDeviceId { get; }
    void EnableTextReply(bool value);
  }
  public enum PhoneLineTransport {
    Bluetooth = 2,
  }
  public sealed class PhoneLineTransportDevice
}
namespace Windows.ApplicationModel.Calls.Background {
  public enum PhoneIncomingCallDismissedReason
  public sealed class PhoneIncomingCallDismissedTriggerDetails
  public enum PhoneTriggerType {
   IncomingCallDismissed = 6,
  }
}
namespace Windows.ApplicationModel.Calls.Provider {
  public static class PhoneCallOriginManager {
    public static bool IsSupported { get; }
  }
}
namespace Windows.ApplicationModel.ConversationalAgent {
  public sealed class ConversationalAgentSession : IClosable
  public sealed class ConversationalAgentSessionInterruptedEventArgs
  public enum ConversationalAgentSessionUpdateResponse
  public sealed class ConversationalAgentSignal
  public sealed class ConversationalAgentSignalDetectedEventArgs
  public enum ConversationalAgentState
  public sealed class ConversationalAgentSystemStateChangedEventArgs
  public enum ConversationalAgentSystemStateChangeType
}
namespace Windows.ApplicationModel.Preview.Holographic {
  public sealed class HolographicKeyboardPlacementOverridePreview
}
namespace Windows.ApplicationModel.Resources {
  public sealed class ResourceLoader {
    public static ResourceLoader GetForUIContext(UIContext context);
  }
}
namespace Windows.ApplicationModel.Resources.Core {
  public sealed class ResourceCandidate {
    ResourceCandidateKind Kind { get; }
  }
  public enum ResourceCandidateKind
  public sealed class ResourceContext {
    public static ResourceContext GetForUIContext(UIContext context);
  }
}
namespace Windows.ApplicationModel.UserActivities {
  public sealed class UserActivityChannel {
    public static UserActivityChannel GetForUser(User user);
  }
}
namespace Windows.Devices.Bluetooth.GenericAttributeProfile {
  public enum GattServiceProviderAdvertisementStatus {
    StartedWithoutAllAdvertisementData = 4,
  }
  public sealed class GattServiceProviderAdvertisingParameters {
    IBuffer ServiceData { get; set; }
  }
}
namespace Windows.Devices.Enumeration {
  public enum DevicePairingKinds : uint {
    ProvidePasswordCredential = (uint)16,
  }
  public sealed class DevicePairingRequestedEventArgs {
    void AcceptWithPasswordCredential(PasswordCredential passwordCredential);
  }
}
namespace Windows.Devices.Input {
  public sealed class PenDevice
}
namespace Windows.Devices.PointOfService {
  public sealed class JournalPrinterCapabilities : ICommonPosPrintStationCapabilities {
    bool IsReversePaperFeedByLineSupported { get; }
    bool IsReversePaperFeedByMapModeUnitSupported { get; }
    bool IsReverseVideoSupported { get; }
    bool IsStrikethroughSupported { get; }
    bool IsSubscriptSupported { get; }
    bool IsSuperscriptSupported { get; }
  }
  public sealed class JournalPrintJob : IPosPrinterJob {
    void FeedPaperByLine(int lineCount);
    void FeedPaperByMapModeUnit(int distance);
    void Print(string data, PosPrinterPrintOptions printOptions);
  }
  public sealed class PaymentDevice : IClosable
  public sealed class PaymentDeviceCapabilities
  public sealed class PaymentDeviceConfiguration
  public sealed class PaymentDeviceGetConfigurationResult
  public sealed class PaymentDeviceOperationResult
  public sealed class PaymentDeviceTransactionRequest
  public sealed class PaymentDeviceTransactionResult
  public sealed class PaymentMethod
  public enum PaymentMethodKind
  public enum PaymentOperationStatus
  public enum PaymentUserResponse
  public sealed class PosPrinter : IClosable {
    IVectorView<uint> SupportedBarcodeSymbologies { get; }
    PosPrinterFontProperty GetFontProperty(string typeface);
  }
  public sealed class PosPrinterFontProperty
  public sealed class PosPrinterPrintOptions
  public sealed class ReceiptPrinterCapabilities : ICommonPosPrintStationCapabilities, ICommonReceiptSlipCapabilities {
    bool IsReversePaperFeedByLineSupported { get; }
    bool IsReversePaperFeedByMapModeUnitSupported { get; }
    bool IsReverseVideoSupported { get; }
    bool IsStrikethroughSupported { get; }
    bool IsSubscriptSupported { get; }
    bool IsSuperscriptSupported { get; }
  }
  public sealed class ReceiptPrintJob : IPosPrinterJob, IReceiptOrSlipJob {
    void FeedPaperByLine(int lineCount);
    void FeedPaperByMapModeUnit(int distance);
    void Print(string data, PosPrinterPrintOptions printOptions);
    void StampPaper();
  }
  public struct SizeUInt32
  public sealed class SlipPrinterCapabilities : ICommonPosPrintStationCapabilities, ICommonReceiptSlipCapabilities {
    bool IsReversePaperFeedByLineSupported { get; }
    bool IsReversePaperFeedByMapModeUnitSupported { get; }
    bool IsReverseVideoSupported { get; }
    bool IsStrikethroughSupported { get; }
    bool IsSubscriptSupported { get; }
    bool IsSuperscriptSupported { get; }
  }
  public sealed class SlipPrintJob : IPosPrinterJob, IReceiptOrSlipJob {
    void FeedPaperByLine(int lineCount);
    void FeedPaperByMapModeUnit(int distance);
    void Print(string data, PosPrinterPrintOptions printOptions);
  }
}
namespace Windows.Devices.PointOfService.Provider {
  public sealed class PaymentDeviceCloseTerminalRequest
  public sealed class PaymentDeviceCloseTerminalRequestEventArgs
  public sealed class PaymentDeviceConnection : IClosable
  public sealed class PaymentDeviceConnectionTriggerDetails
  public sealed class PaymentDeviceConnectorInfo
  public sealed class PaymentDeviceGetTerminalsRequest
  public sealed class PaymentDeviceGetTerminalsRequestEventArgs
  public sealed class PaymentDeviceOpenTerminalRequest
  public sealed class PaymentDeviceOpenTerminalRequestEventArgs
  public sealed class PaymentDevicePaymentAuthorizationRequest
  public sealed class PaymentDevicePaymentAuthorizationRequestEventArgs
  public sealed class PaymentDevicePaymentRequest
  public sealed class PaymentDevicePaymentRequestEventArgs
  public sealed class PaymentDeviceReadCapabilitiesRequest
  public sealed class PaymentDeviceReadCapabilitiesRequestEventArgs
  public sealed class PaymentDeviceReadConfigurationRequest
  public sealed class PaymentDeviceReadConfigurationRequestEventArgs
  public sealed class PaymentDeviceRefundRequest
  public sealed class PaymentDeviceRefundRequestEventArgs
  public sealed class PaymentDeviceVoidTokenRequest
  public sealed class PaymentDeviceVoidTokenRequestEventArgs
  public sealed class PaymentDeviceVoidTransactionRequest
  public sealed class PaymentDeviceVoidTransactionRequestEventArgs
  public sealed class PaymentDeviceWriteConfigurationRequest
  public sealed class PaymentDeviceWriteConfigurationRequestEventArgs
}
namespace Windows.Globalization {
  public sealed class CurrencyAmount
}
namespace Windows.Graphics.DirectX {
  public enum DirectXPrimitiveTopology
}
namespace Windows.Graphics.Holographic {
  public sealed class HolographicCamera {
    HolographicViewConfiguration ViewConfiguration { get; }
  }
  public sealed class HolographicDisplay {
    HolographicViewConfiguration TryGetViewConfiguration(HolographicViewConfigurationKind kind);
  }
  public sealed class HolographicViewConfiguration
  public enum HolographicViewConfigurationKind
}
namespace Windows.Management.Deployment {
  public enum AddPackageByAppInstallerOptions : uint {
    LimitToExistingPackages = (uint)512,
  }
  public enum DeploymentOptions : uint {
    RetainFilesOnFailure = (uint)2097152,
  }
}
namespace Windows.Media.Devices {
  public sealed class InfraredTorchControl
  public enum InfraredTorchMode
  public sealed class VideoDeviceController : IMediaDeviceController {
    InfraredTorchControl InfraredTorchControl { get; }
  }
}
namespace Windows.Media.Miracast {
  public sealed class MiracastReceiver
  public sealed class MiracastReceiverApplySettingsResult
  public enum MiracastReceiverApplySettingsStatus
  public enum MiracastReceiverAuthorizationMethod
  public sealed class MiracastReceiverConnection : IClosable
  public sealed class MiracastReceiverConnectionCreatedEventArgs
  public sealed class MiracastReceiverCursorImageChannel
  public sealed class MiracastReceiverCursorImageChannelSettings
  public sealed class MiracastReceiverDisconnectedEventArgs
  public enum MiracastReceiverDisconnectReason
  public sealed class MiracastReceiverGameControllerDevice
  public enum MiracastReceiverGameControllerDeviceUsageMode
  public sealed class MiracastReceiverInputDevices
  public sealed class MiracastReceiverKeyboardDevice
  public enum MiracastReceiverListeningStatus
  public sealed class MiracastReceiverMediaSourceCreatedEventArgs
  public sealed class MiracastReceiverSession : IClosable
  public sealed class MiracastReceiverSessionStartResult
  public enum MiracastReceiverSessionStartStatus
  public sealed class MiracastReceiverSettings
  public sealed class MiracastReceiverStatus
  public sealed class MiracastReceiverStreamControl
  public sealed class MiracastReceiverVideoStreamSettings
  public enum MiracastReceiverWiFiStatus
  public sealed class MiracastTransmitter
  public enum MiracastTransmitterAuthorizationStatus
}
namespace Windows.Networking.Connectivity {
  public enum NetworkAuthenticationType {
    Wpa3 = 10,
    Wpa3Sae = 11,
  }
}
namespace Windows.Networking.NetworkOperators {
  public sealed class ESim {
    ESimDiscoverResult Discover();
    ESimDiscoverResult Discover(string serverAddress, string matchingId);
    IAsyncOperation<ESimDiscoverResult> DiscoverAsync();
    IAsyncOperation<ESimDiscoverResult> DiscoverAsync(string serverAddress, string matchingId);
  }
  public sealed class ESimDiscoverEvent
  public sealed class ESimDiscoverResult
  public enum ESimDiscoverResultKind
}
namespace Windows.Networking.PushNotifications {
  public static class PushNotificationChannelManager {
    public static event EventHandler<PushNotificationChannelsRevokedEventArgs> ChannelsRevoked;
  }
  public sealed class PushNotificationChannelsRevokedEventArgs
}
namespace Windows.Perception.People {
  public sealed class EyesPose
  public enum HandJointKind
  public sealed class HandMeshObserver
  public struct HandMeshVertex
  public sealed class HandMeshVertexState
  public sealed class HandPose
  public struct JointPose
  public enum JointPoseAccuracy
}
namespace Windows.Perception.Spatial {
  public struct SpatialRay
}
namespace Windows.Perception.Spatial.Preview {
  public sealed class SpatialGraphInteropFrameOfReferencePreview
  public static class SpatialGraphInteropPreview {
    public static SpatialGraphInteropFrameOfReferencePreview TryCreateFrameOfReference(SpatialCoordinateSystem coordinateSystem);
    public static SpatialGraphInteropFrameOfReferencePreview TryCreateFrameOfReference(SpatialCoordinateSystem coordinateSystem, Vector3 relativePosition);
    public static SpatialGraphInteropFrameOfReferencePreview TryCreateFrameOfReference(SpatialCoordinateSystem coordinateSystem, Vector3 relativePosition, Quaternion relativeOrientation);
  }
}
namespace Windows.Security.DataProtection {
  public enum UserDataAvailability
  public sealed class UserDataAvailabilityStateChangedEventArgs
  public sealed class UserDataBufferUnprotectResult
  public enum UserDataBufferUnprotectStatus
  public sealed class UserDataProtectionManager
  public sealed class UserDataStorageItemProtectionInfo
  public enum UserDataStorageItemProtectionStatus
}
namespace Windows.Storage.AccessCache {
  public static class StorageApplicationPermissions {
    public static StorageItemAccessList GetFutureAccessListForUser(User user);
    public static StorageItemMostRecentlyUsedList GetMostRecentlyUsedListForUser(User user);
  }
}
namespace Windows.Storage.Pickers {
  public sealed class FileOpenPicker {
    User User { get; }
    public static FileOpenPicker CreateForUser(User user);
  }
  public sealed class FileSavePicker {
    User User { get; }
    public static FileSavePicker CreateForUser(User user);
  }
  public sealed class FolderPicker {
    User User { get; }
    public static FolderPicker CreateForUser(User user);
  }
}
namespace Windows.System {
  public sealed class DispatcherQueue {
    bool HasThreadAccess { get; }
  }
  public enum ProcessorArchitecture {
    Arm64 = 12,
    X86OnArm64 = 14,
  }
}
namespace Windows.System.Profile {
  public static class AppApplicability
  public sealed class UnsupportedAppRequirement
  public enum UnsupportedAppRequirementReasons : uint
}
namespace Windows.System.RemoteSystems {
  public sealed class RemoteSystem {
    User User { get; }
    public static RemoteSystemWatcher CreateWatcherForUser(User user);
    public static RemoteSystemWatcher CreateWatcherForUser(User user, IIterable<IRemoteSystemFilter> filters);
  }
  public sealed class RemoteSystemApp {
    string ConnectionToken { get; }
    User User { get; }
  }
  public sealed class RemoteSystemConnectionRequest {
    string ConnectionToken { get; }
    public static RemoteSystemConnectionRequest CreateFromConnectionToken(string connectionToken);
    public static RemoteSystemConnectionRequest CreateFromConnectionTokenForUser(User user, string connectionToken);
  }
  public sealed class RemoteSystemWatcher {
    User User { get; }
  }
}
namespace Windows.UI.Composition {
  public enum CompositionBitmapInterpolationMode {
    MagLinearMinLinearMipLinear = 2,
    MagLinearMinLinearMipNearest = 3,
    MagLinearMinNearestMipLinear = 4,
    MagLinearMinNearestMipNearest = 5,
    MagNearestMinLinearMipLinear = 6,
    MagNearestMinLinearMipNearest = 7,
    MagNearestMinNearestMipLinear = 8,
    MagNearestMinNearestMipNearest = 9,
  }
  public sealed class CompositionGraphicsDevice : CompositionObject {
    CompositionMipmapSurface CreateMipmapSurface(SizeInt32 sizePixels, DirectXPixelFormat pixelFormat, DirectXAlphaMode alphaMode);
  }
  public sealed class CompositionMipmapSurface : CompositionObject, ICompositionSurface
  public sealed class CompositionProjectedShadow : CompositionObject
  public sealed class CompositionProjectedShadowCaster : CompositionObject
  public sealed class CompositionProjectedShadowCasterCollection : CompositionObject, IIterable<CompositionProjectedShadowCaster>
  public enum CompositionProjectedShadowDrawOrder
  public sealed class CompositionProjectedShadowLegacyCaster : CompositionObject
  public sealed class CompositionProjectedShadowLegacyCasterCollection : CompositionObject, IIterable<CompositionProjectedShadowLegacyCaster>
 public sealed class CompositionProjectedShadowLegacyReceiver : CompositionObject
  public sealed class CompositionProjectedShadowLegacyReceiverUnorderedCollection : CompositionObject, IIterable<CompositionProjectedShadowLegacyReceiver>
  public sealed class CompositionProjectedShadowLegacyScene : CompositionObject
  public enum CompositionProjectedShadowPolicy
  public sealed class CompositionProjectedShadowReceiver : CompositionObject, IIterable<CompositionProjectedShadow>
  public sealed class CompositionRadialGradientBrush : CompositionGradientBrush
  public class CompositionTransform : CompositionObject
  public sealed class CompositionVisualSurface : CompositionObject, ICompositionSurface
  public sealed class Compositor : IClosable {
    CompositionProjectedShadow CreateProjectedShadow();
    CompositionProjectedShadowCaster CreateProjectedShadowCaster();
    CompositionProjectedShadowLegacyCaster CreateProjectedShadowLegacyCaster();
    CompositionProjectedShadowLegacyReceiver CreateProjectedShadowLegacyReceiver();
    CompositionProjectedShadowLegacyScene CreateProjectedShadowLegacyScene();
    CompositionRadialGradientBrush CreateRadialGradientBrush();
    CompositionVisualSurface CreateVisualSurface();
  }
  public interface ICompositorPartner_ProjectedShadow
  public interface ICompositorPartner_ProjectedShadowLegacy
  public interface IVisualElement
  public sealed class UIContentRoot
  public sealed class UIContext
  public class Visual : CompositionObject {
    CompositionProjectedShadowReceiver ReceivedShadows { get; }
  }
}
namespace Windows.UI.Composition.Interactions {
  public enum InteractionBindingAxisModes : uint
  public sealed class InteractionTracker : CompositionObject {
    public static void SetBindingMode(InteractionTracker boundTracker1, InteractionTracker boundTracker2, InteractionBindingAxisModes axisMode);
  }
  public sealed class InteractionTrackerCustomAnimationStateEnteredArgs {
    bool IsFromBinding { get; }
  }
  public sealed class InteractionTrackerIdleStateEnteredArgs {
    bool IsFromBinding { get; }
  }
  public sealed class InteractionTrackerInertiaStateEnteredArgs {
    bool IsFromBinding { get; }
  }
  public sealed class InteractionTrackerInteractingStateEnteredArgs {
    bool IsFromBinding { get; }
  }
  public class VisualInteractionSource : CompositionObject, ICompositionInteractionSource {
    public static VisualInteractionSource CreateFromIVisualElement(IVisualElement source);
  }
}
namespace Windows.UI.Composition.Scenes {
  public enum SceneAlphaMode
  public enum SceneAttributeSemantic
  public sealed class SceneBoundingBox : SceneObject
  public class SceneComponent : SceneObject
  public sealed class SceneComponentCollection : SceneObject, IIterable<SceneComponent>, IVector<SceneComponent>
  public enum SceneComponentType
  public class SceneMaterial : SceneObject
  public class SceneMaterialInput : SceneObject
  public sealed class SceneMesh : SceneObject
  public sealed class SceneMeshMaterialAttributeMap : SceneObject, IIterable<IKeyValuePair<string, SceneAttributeSemantic>>, IMap<string, SceneAttributeSemantic>
  public sealed class SceneMeshRendererComponent : SceneRendererComponent
  public sealed class SceneMetallicRoughnessMaterial : ScenePbrMaterial
  public sealed class SceneModelTransform : CompositionTransform
  public sealed class SceneNode : SceneObject
  public sealed class SceneNodeCollection : SceneObject, IIterable<SceneNode>, IVector<SceneNode>
  public class SceneObject : CompositionObject
  public class ScenePbrMaterial : SceneMaterial
  public class SceneRendererComponent : SceneComponent
  public sealed class SceneSurfaceMaterialInput : SceneMaterialInput
  public sealed class SceneVisual : ContainerVisual
  public enum SceneWrappingMode
}
namespace Windows.UI.Core {
  public sealed class CoreWindow : ICorePointerRedirector, ICoreWindow {
    UIContext UIContext { get; }
  }
}
namespace Windows.UI.Core.Preview {
  public sealed class CoreAppWindowPreview
}
namespace Windows.UI.Input {
  public class AttachableInputObject : IClosable
  public enum GazeInputAccessStatus
  public sealed class InputActivationListener : AttachableInputObject
  public sealed class InputActivationListenerActivationChangedEventArgs
  public enum InputActivationState
}
namespace Windows.UI.Input.Preview {
  public static class InputActivationListenerPreview
}
namespace Windows.UI.Input.Spatial {
  public sealed class SpatialInteractionManager {
    public static bool IsSourceKindSupported(SpatialInteractionSourceKind kind);
  }
  public sealed class SpatialInteractionSource {
    HandMeshObserver TryCreateHandMeshObserver();
    IAsyncOperation<HandMeshObserver> TryCreateHandMeshObserverAsync();
  }
  public sealed class SpatialInteractionSourceState {
    HandPose TryGetHandPose();
  }
  public sealed class SpatialPointerPose {
    EyesPose Eyes { get; }
    bool IsHeadCapturedBySystem { get; }
  }
}
namespace Windows.UI.Notifications {
  public sealed class ToastActivatedEventArgs {
    ValueSet UserInput { get; }
  }
  public sealed class ToastNotification {
    bool ExpiresOnReboot { get; set; }
  }
}
namespace Windows.UI.ViewManagement {
  public sealed class ApplicationView {
    string PersistedStateId { get; set; }
    UIContext UIContext { get; }
    WindowingEnvironment WindowingEnvironment { get; }
    public static void ClearAllPersistedState();
    public static void ClearPersistedState(string key);
    IVectorView<DisplayRegion> GetDisplayRegions();
  }
  public sealed class InputPane {
    public static InputPane GetForUIContext(UIContext context);
  }
  public sealed class UISettings {
    bool AutoHideScrollBars { get; }
    event TypedEventHandler<UISettings, UISettingsAutoHideScrollBarsChangedEventArgs> AutoHideScrollBarsChanged;
  }
  public sealed class UISettingsAutoHideScrollBarsChangedEventArgs
}
namespace Windows.UI.ViewManagement.Core {
  public sealed class CoreInputView {
    public static CoreInputView GetForUIContext(UIContext context);
  }
}
namespace Windows.UI.WindowManagement {
  public sealed class AppWindow
  public sealed class AppWindowChangedEventArgs
  public sealed class AppWindowClosedEventArgs
  public enum AppWindowClosedReason
  public sealed class AppWindowCloseRequestedEventArgs
  public sealed class AppWindowFrame
  public enum AppWindowFrameStyle
  public sealed class AppWindowPlacement
  public class AppWindowPresentationConfiguration
  public enum AppWindowPresentationKind
  public sealed class AppWindowPresenter
  public sealed class AppWindowTitleBar
  public sealed class AppWindowTitleBarOcclusion
  public enum AppWindowTitleBarVisibility
  public sealed class CompactOverlayPresentationConfiguration : AppWindowPresentationConfiguration
  public sealed class DefaultPresentationConfiguration : AppWindowPresentationConfiguration
  public sealed class DisplayRegion
  public sealed class FullScreenPresentationConfiguration : AppWindowPresentationConfiguration
  public sealed class WindowingEnvironment
  public sealed class WindowingEnvironmentAddedEventArgs
  public sealed class WindowingEnvironmentChangedEventArgs
  public enum WindowingEnvironmentKind
  public sealed class WindowingEnvironmentRemovedEventArgs
}
namespace Windows.UI.WindowManagement.Preview {
  public sealed class WindowManagementPreview
}
namespace Windows.UI.Xaml {
  public class UIElement : DependencyObject, IAnimationObject, IVisualElement {
    Vector3 ActualOffset { get; }
    Vector2 ActualSize { get; }
    Shadow Shadow { get; set; }
    public static DependencyProperty ShadowProperty { get; }
    UIContext UIContext { get; }
    XamlRoot XamlRoot { get; set; }
  }
  public class UIElementWeakCollection : IIterable<UIElement>, IVector<UIElement>
  public sealed class Window {
    UIContext UIContext { get; }
  }
  public sealed class XamlRoot
  public sealed class XamlRootChangedEventArgs
}
namespace Windows.UI.Xaml.Controls {
  public sealed class DatePickerFlyoutPresenter : Control {
    bool IsDefaultShadowEnabled { get; set; }
    public static DependencyProperty IsDefaultShadowEnabledProperty { get; }
  }
  public class FlyoutPresenter : ContentControl {
    bool IsDefaultShadowEnabled { get; set; }
    public static DependencyProperty IsDefaultShadowEnabledProperty { get; }
  }
  public class InkToolbar : Control {
    InkPresenter TargetInkPresenter { get; set; }
    public static DependencyProperty TargetInkPresenterProperty { get; }
  }
  public class MenuFlyoutPresenter : ItemsControl {
    bool IsDefaultShadowEnabled { get; set; }
    public static DependencyProperty IsDefaultShadowEnabledProperty { get; }
  }
  public class RichEditBox : Control {
    void CopySelectionToClipboard();
    void CutSelectionToClipboard();
    void PasteFromClipboard();
  }
  public sealed class TimePickerFlyoutPresenter : Control {
    bool IsDefaultShadowEnabled { get; set; }
    public static DependencyProperty IsDefaultShadowEnabledProperty { get; }
  }
  public class TwoPaneView : Control
  public enum TwoPaneViewMode
  public enum TwoPaneViewPriority
  public enum TwoPaneViewTallModeConfiguration
  public enum TwoPaneViewWideModeConfiguration
}
namespace Windows.UI.Xaml.Controls.Maps {
  public sealed class MapControl : Control {
    bool CanTiltDown { get; }
    public static DependencyProperty CanTiltDownProperty { get; }
    bool CanTiltUp { get; }
    public static DependencyProperty CanTiltUpProperty { get; }
    bool CanZoomIn { get; }
    public static DependencyProperty CanZoomInProperty { get; }
    bool CanZoomOut { get; }
    public static DependencyProperty CanZoomOutProperty { get; }
  }
  public enum MapLoadingStatus {
    DownloadedMapsManagerUnavailable = 3,
  }
}
namespace Windows.UI.Xaml.Controls.Primitives {
  public sealed class AppBarTemplateSettings : DependencyObject {
    double NegativeCompactVerticalDelta { get; }
    double NegativeHiddenVerticalDelta { get; }
    double NegativeMinimalVerticalDelta { get; }
  }
  public sealed class CommandBarTemplateSettings : DependencyObject {
    double OverflowContentCompactYTranslation { get; }
    double OverflowContentHiddenYTranslation { get; }
    double OverflowContentMinimalYTranslation { get; }
  }
  public class FlyoutBase : DependencyObject {
    bool IsConstrainedToRootBounds { get; }
    bool ShouldConstrainToRootBounds { get; set; }
    public static DependencyProperty ShouldConstrainToRootBoundsProperty { get; }
    XamlRoot XamlRoot { get; set; }
  }
  public sealed class Popup : FrameworkElement {
    bool IsConstrainedToRootBounds { get; }
    bool ShouldConstrainToRootBounds { get; set; }
    public static DependencyProperty ShouldConstrainToRootBoundsProperty { get; }
  }
}
namespace Windows.UI.Xaml.Core.Direct {
  public enum XamlPropertyIndex {
    AppBarTemplateSettings_NegativeCompactVerticalDelta = 2367,
    AppBarTemplateSettings_NegativeHiddenVerticalDelta = 2368,
    AppBarTemplateSettings_NegativeMinimalVerticalDelta = 2369,
    CommandBarTemplateSettings_OverflowContentCompactYTranslation = 2384,
    CommandBarTemplateSettings_OverflowContentHiddenYTranslation = 2385,
    CommandBarTemplateSettings_OverflowContentMinimalYTranslation = 2386,
    FlyoutBase_ShouldConstrainToRootBounds = 2378,
    FlyoutPresenter_IsDefaultShadowEnabled = 2380,
    MenuFlyoutPresenter_IsDefaultShadowEnabled = 2381,
    Popup_ShouldConstrainToRootBounds = 2379,
    ThemeShadow_Receivers = 2279,
    UIElement_ActualOffset = 2382,
    UIElement_ActualSize = 2383,
    UIElement_Shadow = 2130,
  }
  public enum XamlTypeIndex {
    ThemeShadow = 964,
  }
}
namespace Windows.UI.Xaml.Documents {
  public class TextElement : DependencyObject {
    XamlRoot XamlRoot { get; set; }
  }
}
namespace Windows.UI.Xaml.Hosting {
  public sealed class ElementCompositionPreview {
    public static UIElement GetAppWindowContent(AppWindow appWindow);
    public static void SetAppWindowContent(AppWindow appWindow, UIElement xamlContent);
  }
}
namespace Windows.UI.Xaml.Input {
  public sealed class FocusManager {
    public static object GetFocusedElement(XamlRoot xamlRoot);
  }
  public class StandardUICommand : XamlUICommand {
    StandardUICommandKind Kind { get; set; }
  }
}
namespace Windows.UI.Xaml.Media {
  public class AcrylicBrush : XamlCompositionBrushBase {
    IReference<double> TintLuminosityOpacity { get; set; }
    public static DependencyProperty TintLuminosityOpacityProperty { get; }
  }
  public class Shadow : DependencyObject
  public class ThemeShadow : Shadow
  public sealed class VisualTreeHelper {
    public static IVectorView<Popup> GetOpenPopupsForXamlRoot(XamlRoot xamlRoot);
  }
}
namespace Windows.UI.Xaml.Media.Animation {
  public class GravityConnectedAnimationConfiguration : ConnectedAnimationConfiguration {
    bool IsShadowEnabled { get; set; }
  }
}
namespace Windows.Web.Http {
  public sealed class HttpClient : IClosable, IStringable {
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TryDeleteAsync(Uri uri);
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TryGetAsync(Uri uri);
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TryGetAsync(Uri uri, HttpCompletionOption completionOption);
    IAsyncOperationWithProgress<HttpGetBufferResult, HttpProgress> TryGetBufferAsync(Uri uri);
    IAsyncOperationWithProgress<HttpGetInputStreamResult, HttpProgress> TryGetInputStreamAsync(Uri uri);
    IAsyncOperationWithProgress<HttpGetStringResult, HttpProgress> TryGetStringAsync(Uri uri);
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TryPostAsync(Uri uri, IHttpContent content);
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TryPutAsync(Uri uri, IHttpContent content);
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TrySendRequestAsync(HttpRequestMessage request);
    IAsyncOperationWithProgress<HttpRequestResult, HttpProgress> TrySendRequestAsync(HttpRequestMessage request, HttpCompletionOption completionOption);
  }
  public sealed class HttpGetBufferResult : IClosable, IStringable
  public sealed class HttpGetInputStreamResult : IClosable, IStringable
  public sealed class HttpGetStringResult : IClosable, IStringable
  public sealed class HttpRequestResult : IClosable, IStringable
}
namespace Windows.Web.Http.Filters {
  public sealed class HttpBaseProtocolFilter : IClosable, IHttpFilter {
    User User { get; }
    public static HttpBaseProtocolFilter CreateForUser(User user);
  }
}

The post Windows 10 SDK Preview Build 18309 available now! appeared first on Windows Blog.

Source: Windows Blog
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