Category Archives: Windows 10 SDK Preview Build

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Windows 10 SDK Preview Build 17035 now available

Today, we released a new Windows 10 Preview Build of the SDK to be used in conjunction with Windows 10 Insider Preview (Build 17035 or greater). The Preview SDK Build 17035 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 Creators build or earlier to the store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
Known Issues:
Installation on an operating system that is not a Windows 10 Insider Preview  build is not supported and may fail.
What’s New:
C++/WinRT Now Available:
The C++/WinRT headers and cppwinrt compiler (cppwinrt.exe) are now included in the Windows SDK. The compiler comes in handy if you need to consume a third-party WinRT component or if you need to author your own WinRT components with C++/WinRT. The easiest way to get working with it after installing the Windows Insider Preview SDK is to start the Visual Studio Developer Command Prompt and run the compiler in that environment. Authoring support is currently experimental and subject to change. Stay tuned as we will publish more detailed instructions on how to use the compiler in the coming week. The ModernCPP blog has a deeper dive into the CppWinRT compiler. Please give us feedback by creating an issue at: https://github.com/microsoft/cppwinrt.
Breaking Changes
New MIDL key words. 
As a part of the “modernizing IDL” effort, several new keywords are added to the midlrt tool. These new keywords will cause build breaks if they are encountered in IDL files.
The new keywords are:
event
set
get
partial
unsealed
overridable
protected
importwinmd
If any of these keywords are used as an identifier, it will generate a build failure indicating a syntax error.
The error will be similar to:
1 >d:ossrconecorecomcombaseunittestastatestserverstestserver6idlremreleasetest.idl(12) : error MIDL2025 : [msg]syntax error [context]: expecting a declarator or * near “)”
To fix this, modify the identifier in error to an “@” prefix in front of the identifier. That will cause MIDL to treat the offending element as an identifier instead of a keyword.
API Updates and Additions
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices. Please see Dynamically detecting features with API contracts (10 by 10) for more information.
The following APIs have been added to the platform since the release of 16299.

namespace Windows.ApplicationModel {
public enum StartupTaskState {
EnabledByPolicy = 4,
}
}
namespace Windows.ApplicationModel.Background {
public sealed class MobileBroadbandPcoDataChangeTrigger : IBackgroundTrigger
}
namespace Windows.ApplicationModel.Calls {
public enum PhoneCallMedia {
AudioAndRealTimeText = 2,
}
public sealed class VoipCallCoordinator {
VoipPhoneCall RequestNewAppInitiatedCall(string context, string contactName, string contactNumber, string serviceName, VoipPhoneCallMedia media);
VoipPhoneCall RequestNewIncomingCall(string context, string contactName, string contactNumber, Uri contactImage, string serviceName, Uri brandingImage, string callDetails, Uri ringtone, VoipPhoneCallMedia media, TimeSpan ringTimeout, string contactRemoteId);
}
public sealed class VoipPhoneCall {
void NotifyCallAccepted(VoipPhoneCallMedia media);
}
}
namespace Windows.ApplicationModel.Chat {
public sealed class RcsManagerChangedEventArgs
public enum RcsManagerChangeType
public sealed class RcsNotificationManager
}
namespace Windows.ApplicationModel.UserActivities {
public sealed class UserActivity {
public UserActivity();
}
public sealed class UserActivityChannel {
public static void DisableAutoSessionCreation();
}
public sealed class UserActivityVisualElements {
string AttributionDisplayText { get; set; }
}
}
namespace Windows.Devices.PointOfService {
public sealed class BarcodeScannerReport {
public BarcodeScannerReport(uint scanDataType, IBuffer scanData, IBuffer scanDataLabel);
}
public sealed class ClaimedBarcodeScanner : IClosable {
void HideVideoPreview();
IAsyncOperation<bool> ShowVideoPreviewAsync();
}
public sealed class UnifiedPosErrorData {
public UnifiedPosErrorData(string message, UnifiedPosErrorSeverity severity, UnifiedPosErrorReason reason, uint extendedReason);
}
}
namespace Windows.Globalization {
public static class ApplicationLanguages {
public static IVectorView<string> GetLanguagesForUser(User user);
}
public sealed class Language {
LanguageLayoutDirection LayoutDirection { get; }
}
public enum LanguageLayoutDirection
}
namespace Windows.Graphics.Imaging {
public enum BitmapPixelFormat {
P010 = 104,
}
}
namespace Windows.Management.Deployment {
public sealed class PackageManager {
IAsyncOperationWithProgress<DeploymentResult, DeploymentProgress> RequestAddPackageAsync(Uri packageUri, IIterable<Uri> dependencyPackageUris, DeploymentOptions deploymentOptions, PackageVolume targetVolume, IIterable<string> optionalPackageFamilyNames, IIterable<Uri> relatedPackageUris, IIterable<Uri> packageUrisToInstall);
}
}
namespace Windows.Media.Audio {
public sealed class AudioGraph : IClosable {
IAsyncOperation<CreateMediaSourceAudioInputNodeResult> CreateMediaSourceAudioInputNodeAsync(MediaSource mediaSource);
IAsyncOperation<CreateMediaSourceAudioInputNodeResult> CreateMediaSourceAudioInputNodeAsync(MediaSource mediaSource, AudioNodeEmitter emitter);
}
public sealed class AudioGraphSettings {
double MaxPlaybackSpeedFactor { get; set; }
}
public sealed class CreateMediaSourceAudioInputNodeResult
public sealed class MediaSourceAudioInputNode : IAudioInputNode, IAudioInputNode2, IAudioNode, IClosable
public enum MediaSourceAudioInputNodeCreationStatus
}
namespace Windows.Media.Capture {
public sealed class CapturedFrame : IClosable, IContentTypeProvider, IInputStream, IOutputStream, IRandomAccessStream, IRandomAccessStreamWithContentType {
BitmapPropertySet BitmapProperties { get; }
CapturedFrameControlValues ControlValues { get; }
}
}
namespace Windows.Media.Capture.Frames {
public sealed class AudioMediaFrame
public sealed class MediaFrameFormat {
AudioEncodingProperties AudioEncodingProperties { get; }
}
public sealed class MediaFrameReference : IClosable {
AudioMediaFrame AudioMediaFrame { get; }
}
public sealed class MediaFrameSourceController {
AudioDeviceController AudioDeviceController { get; }
}
public enum MediaFrameSourceKind {
Audio = 4,
}
}
namespace Windows.Media.Core {
public sealed class MediaBindingEventArgs {
void SetDownloadOperation(DownloadOperation downloadOperation);
}
public sealed class MediaSource : IClosable, IMediaPlaybackSource {
DownloadOperation DownloadOperation { get; }
public static MediaSource CreateFromDownloadOperation(DownloadOperation downloadOperation);
}
}
namespace Windows.Media.Devices {
public sealed class VideoDeviceController : IMediaDeviceController {
VideoTemporalDenoisingControl VideoTemporalDenoisingControl { get; }
}
public sealed class VideoTemporalDenoisingControl
public enum VideoTemporalDenoisingMode
}
namespace Windows.Media.DialProtocol {
public sealed class DialReceiverApp {
IAsyncOperation<string> GetUniqueDeviceNameAsync();
}
}
namespace Windows.Media.MediaProperties {
public static class MediaEncodingSubtypes {
public static string P010 { get; }
}
public enum MediaPixelFormat {
P010 = 2,
}
}
namespace Windows.Media.Playback {
public sealed class MediaPlaybackSession {
MediaRotation PlaybackRotation { get; set; }
MediaPlaybackSessionOutputDegradationPolicyState GetOutputDegradationPolicyState();
}
public sealed class MediaPlaybackSessionOutputDegradationPolicyState
public enum MediaPlaybackSessionVideoConstrictionReason
}
namespace Windows.Media.Streaming.Adaptive {
public sealed class AdaptiveMediaSourceDiagnosticAvailableEventArgs {
string ResourceContentType { get; }
IReference<TimeSpan> ResourceDuration { get; }
}
public sealed class AdaptiveMediaSourceDownloadCompletedEventArgs {
string ResourceContentType { get; }
IReference<TimeSpan> ResourceDuration { get; }
}
public sealed class AdaptiveMediaSourceDownloadFailedEventArgs {
string ResourceContentType { get; }
IReference<TimeSpan> ResourceDuration { get; }
}
public sealed class AdaptiveMediaSourceDownloadRequestedEventArgs {
string ResourceContentType { get; }
IReference<TimeSpan> ResourceDuration { get; }
}
}
namespace Windows.Networking.BackgroundTransfer {
public sealed class DownloadOperation : IBackgroundTransferOperation, IBackgroundTransferOperationPriority {
void MakeCurrentInTransferGroup();
}
public sealed class UploadOperation : IBackgroundTransferOperation, IBackgroundTransferOperationPriority {
void MakeCurrentInTransferGroup();
}
}
namespace Windows.Networking.Connectivity {
public sealed class CellularApnContext {
string ProfileName { get; set; }
}
public sealed class ConnectionProfileFilter {
IReference<Guid> PurposeGuid { get; set; }
}
public sealed class WwanConnectionProfileDetails {
WwanNetworkIPKind IPKind { get; }
IVectorView<Guid> PurposeGuids { get; }
}
public enum WwanNetworkIPKind
}
namespace Windows.Networking.NetworkOperators {
public sealed class MobileBroadbandAntennaSar {
public MobileBroadbandAntennaSar(int antennaIndex, int sarBackoffIndex);
}
public sealed class MobileBroadbandModem {
IAsyncOperation<MobileBroadbandPco> TryGetPcoAsync();
}
public sealed class MobileBroadbandModemIsolation
public sealed class MobileBroadbandPco
public sealed class MobileBroadbandPcoDataChangeTriggerDetails
}
namespace Windows.Networking.Sockets {
public sealed class ServerMessageWebSocket : IClosable
public sealed class ServerMessageWebSocketControl
public sealed class ServerMessageWebSocketInformation
public sealed class ServerStreamWebSocket : IClosable
public sealed class ServerStreamWebSocketInformation
}
namespace Windows.Networking.Vpn {
public sealed class VpnNativeProfile : IVpnProfile {
string IDi { get; set; }
VpnPayloadIdType IdiType { get; set; }
string IDr { get; set; }
VpnPayloadIdType IdrType { get; set; }
bool IsImsConfig { get; set; }
string PCscf { get; }
}
public enum VpnPayloadIdType
}
namespace Windows.Security.Authentication.Identity.Provider {
public enum SecondaryAuthenticationFactorAuthenticationMessage {
CanceledByUser = 22,
CenterHand = 23,
ConnectionRequired = 20,
DeviceUnavaliable = 28,
MoveHandCloser = 24,
MoveHandFarther = 25,
PlaceHandAbove = 26,
RecognitionFailed = 27,
TimeLimitExceeded = 21,
}
}
namespace Windows.Services.Maps {
public sealed class MapRouteDrivingOptions {
IReference<DateTime> DepartureTime { get; set; }
}
}
namespace Windows.System {
public sealed class AppActivationResult
public sealed class AppDiagnosticInfo {
IAsyncOperation<AppActivationResult> ActivateAsync();
}
public sealed class AppResourceGroupInfo {
IAsyncOperation<bool> TryResumeAsync();
IAsyncOperation<bool> TrySuspendAsync();
IAsyncOperation<bool> TryTerminateAsync();
}
}
namespace Windows.System.Diagnostics.DevicePortal {
public sealed class DevicePortalConnection {
ServerMessageWebSocket GetServerMessageWebSocketForRequest(HttpRequestMessage request);
ServerMessageWebSocket GetServerMessageWebSocketForRequest(HttpRequestMessage request, SocketMessageType messageType, string protocol);
ServerMessageWebSocket GetServerMessageWebSocketForRequest(HttpRequestMessage request, SocketMessageType messageType, string protocol, uint outboundBufferSizeInBytes, uint maxMessageSize, MessageWebSocketReceiveMode receiveMode);
ServerStreamWebSocket GetServerStreamWebSocketForRequest(HttpRequestMessage request);
ServerStreamWebSocket GetServerStreamWebSocketForRequest(HttpRequestMessage request, string protocol, uint outboundBufferSizeInBytes, bool noDelay);
}
public sealed class DevicePortalConnectionRequestReceivedEventArgs {
bool IsWebSocketUpgradeRequest { get; }
IVectorView<string> WebSocketProtocolsRequested { get; }
Deferral GetDeferral();
}
}
namespace Windows.System.RemoteSystems {
public static class KnownRemoteSystemCapabilities {
public static string NearShare { get; }
}
}
namespace Windows.System.UserProfile {
public static class GlobalizationPreferences {
public static GlobalizationPreferencesForUser GetForUser(User user);
}
public sealed class GlobalizationPreferencesForUser
}
namespace Windows.UI.Composition {
public class CompositionLight : CompositionObject {
bool IsEnabled { get; set; }
}
public sealed class Compositor : IClosable {
string Comment { get; set; }
}
public sealed class PointLight : CompositionLight {
Vector2 AttenuationCutoff { get; set; }
}
public sealed class SpotLight : CompositionLight {
Vector2 AttenuationCutoff { get; set; }
}
}
namespace Windows.UI.Composition.Core {
public sealed class CompositorController : IClosable
}
namespace Windows.UI.Xaml {
public sealed class BringIntoViewOptions {
IReference<double> HorizontalAlignmentRatio { get; set; }
Point Offset { get; set; }
IReference<double> VerticalAlignmentRatio { get; set; }
}
public sealed class BringIntoViewRequestedEventArgs : RoutedEventArgs
public sealed class EffectiveViewportChangedEventArgs
public class FrameworkElement : UIElement {
event TypedEventHandler<FrameworkElement, EffectiveViewportChangedEventArgs> EffectiveViewportChanged;
void InvalidateViewport();
virtual bool IsViewport();
}
public class UIElement : DependencyObject {
public static RoutedEvent BringIntoViewRequestedEvent { get; }
KeyboardAcceleratorPlacementMode KeyboardAcceleratorPlacementMode { get; set; }
public static DependencyProperty KeyboardAcceleratorPlacementModeProperty { get; }
DependencyObject KeyboardAcceleratorToolTipTarget { get; set; }
public static DependencyProperty KeyboardAcceleratorToolTipTargetProperty { get; }
DependencyObject KeyTipTarget { get; set; }
public static DependencyProperty KeyTipTargetProperty { get; }
event TypedEventHandler<UIElement, BringIntoViewRequestedEventArgs> BringIntoViewRequested;
virtual void OnBringIntoViewRequested(BringIntoViewRequestedEventArgs e);
virtual void OnKeyboardAcceleratorInvoked(KeyboardAcceleratorInvokedEventArgs args);
}
}
namespace Windows.UI.Xaml.Automation.Peers {
public sealed class AutoSuggestBoxAutomationPeer : FrameworkElementAutomationPeer, IInvokeProvider {
void Invoke();
}
}
namespace Windows.UI.Xaml.Controls {
public class AppBarButton : Button, ICommandBarElement, ICommandBarElement2 {
string KeyboardAcceleratorText { get; set; }
public static DependencyProperty KeyboardAcceleratorTextProperty { get; }
AppBarButtonTemplateSettings TemplateSettings { get; }
}
public class AppBarToggleButton : ToggleButton, ICommandBarElement, ICommandBarElement2 {
string KeyboardAcceleratorText { get; set; }
public static DependencyProperty KeyboardAcceleratorTextProperty { get; }
AppBarToggleButtonTemplateSettings TemplateSettings { get; }
}
public class MenuFlyoutItem : MenuFlyoutItemBase {
string KeyboardAcceleratorText { get; set; }
public static DependencyProperty KeyboardAcceleratorTextProperty { get; }
MenuFlyoutItemTemplateSettings TemplateSettings { get; }
}
public class NavigationView : ContentControl {
string PaneTitle { get; set; }
public static DependencyProperty PaneTitleProperty { get; }
event TypedEventHandler<NavigationView, object> PaneClosed;
event TypedEventHandler<NavigationView, NavigationViewPaneClosingEventArgs> PaneClosing;
event TypedEventHandler<NavigationView, object> PaneOpened;
event TypedEventHandler<NavigationView, object> PaneOpening;
}
public sealed class NavigationViewPaneClosingEventArgs
public enum WebViewPermissionType {
Screen = 5,
}
}
namespace Windows.UI.Xaml.Controls.Maps {
public sealed class MapControl : Control {
string Region { get; set; }
public static DependencyProperty RegionProperty { get; }
}
public class MapElement : DependencyObject {
bool IsEnabled { get; set; }
public static DependencyProperty IsEnabledProperty { get; }
}
}
namespace Windows.UI.Xaml.Controls.Primitives {
public sealed class AppBarButtonTemplateSettings : DependencyObject
public sealed class AppBarToggleButtonTemplateSettings : DependencyObject
public sealed class MenuFlyoutItemTemplateSettings : DependencyObject
}
namespace Windows.UI.Xaml.Input {
public sealed class KeyboardAcceleratorInvokedEventArgs {
KeyboardAccelerator KeyboardAccelerator { get; }
}
public enum KeyboardAcceleratorPlacementMode
}

Windows 10 SDK Preview Build 17025

Today, we released a new Windows 10 Preview Build of the SDK to be used in conjunction with Windows 10 Insider Preview (Build 17025 or greater). The Preview SDK Build 17025 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 Creators build or earlier to the store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
Known Issues
Installation on an operating system that is not a Windows 10 Insider Preview build is not supported and may fail.
 Breaking Changes
New MIDL key words.As a part of the “modernizing IDL” effort, several new keywords are added to the midlrt tool. These new keywords will cause build breaks if they are encountered in IDL files.
The new keywords are:
event
set
get
partial
unsealed
overridable
protected
importwinmd
If any of these keywords are used as an identifier, it will generate a build failure indicating a syntax error.
The error will be similar to:
1
>d:ossrconecorecomcombaseunittestastatestserverstestserver6idlremreleasetest.idl
(12) : error MIDL2025 : [msg]syntax error [context]: expecting a declarator or * near “)”
To fix this, modify the identifier in error to an “@” prefix in front of the identifier. That will cause MIDL to treat the offending element as an identifier instead of a keyword.
API Updates and Additions
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices. Please see Dynamically detecting features with API contracts (10 by 10) for more information.
The following APIs have been added to the platform since the release of 16299.

namespace Windows.ApplicationModel {
public enum StartupTaskState {
EnabledByPolicy = 4,
}
}
namespace Windows.ApplicationModel.Background {
public sealed class MobileBroadbandPcoDataChangeTrigger : IBackgroundTrigger
}
namespace Windows.ApplicationModel.Calls {
public enum PhoneCallMedia {
AudioAndRealTimeText = 2,
}
public sealed class VoipCallCoordinator {
VoipPhoneCall RequestNewAppInitiatedCall(string context, string contactName, string contactNumber, string serviceName, VoipPhoneCallMedia media);
VoipPhoneCall RequestNewIncomingCall(string context, string contactName, string contactNumber, Uri contactImage, string serviceName, Uri brandingImage, string callDetails, Uri ringtone, VoipPhoneCallMedia media, TimeSpan ringTimeout, string contactRemoteId);
}
public sealed class VoipPhoneCall {
void NotifyCallAccepted(VoipPhoneCallMedia media);
}
}
namespace Windows.ApplicationModel.UserActivities {
public sealed class UserActivity {
public UserActivity();
}
public sealed class UserActivityChannel {
public static void DisableAutoSessionCreation();
}
public sealed class UserActivityVisualElements {
string AttributionDisplayText { get; set; }
}
}
namespace Windows.Devices.PointOfService {
public sealed class BarcodeScannerReport {
public BarcodeScannerReport(uint scanDataType, IBuffer scanData, IBuffer scanDataLabel);
}
public sealed class ClaimedBarcodeScanner : IClosable {
void HideVideoPreview();
IAsyncOperation<bool> ShowVideoPreviewAsync();
}
public sealed class UnifiedPosErrorData {
public UnifiedPosErrorData(string message, UnifiedPosErrorSeverity severity, UnifiedPosErrorReason reason, uint extendedReason);
}
}
namespace Windows.Globalization {
public static class ApplicationLanguages {
public static IVectorView<string> GetLanguagesForUser(User user);
}
public sealed class Language {
LanguageLayoutDirection LayoutDirection { get; }
}
public enum LanguageLayoutDirection
}
namespace Windows.Graphics.Imaging {
public enum BitmapPixelFormat {
P010 = 104,
}
}
namespace Windows.Management.Deployment {
public sealed class PackageManager {
IAsyncOperationWithProgress<DeploymentResult, DeploymentProgress> RequestAddPackageAsync(Uri packageUri, IIterable<Uri> dependencyPackageUris, DeploymentOptions deploymentOptions, PackageVolume targetVolume, IIterable<string> optionalPackageFamilyNames, IIterable<Uri> relatedPackageUris, IIterable<Uri> packageUrisToInstall);
}
}
namespace Windows.Media.Capture {
public sealed class CapturedFrame : IClosable, IContentTypeProvider, IInputStream, IOutputStream, IRandomAccessStream, IRandomAccessStreamWithContentType {
BitmapPropertySet BitmapProperties { get; }
CapturedFrameControlValues ControlValues { get; }
}
}
namespace Windows.Media.Core {
public sealed class MediaBindingEventArgs {
void SetDownloadOperation(DownloadOperation downloadOperation);
}
public sealed class MediaSource : IClosable, IMediaPlaybackSource {
DownloadOperation DownloadOperation { get; }
public static MediaSource CreateFromDownloadOperation(DownloadOperation downloadOperation);
}
}
namespace Windows.Media.Devices {
public sealed class VideoDeviceController : IMediaDeviceController {
VideoTemporalDenoisingControl VideoTemporalDenoisingControl { get; }
}
public sealed class VideoTemporalDenoisingControl
public enum VideoTemporalDenoisingMode
}
namespace Windows.Media.MediaProperties {
public static class MediaEncodingSubtypes {
public static string P010 { get; }
}
public enum MediaPixelFormat {
P010 = 2,
}
}
namespace Windows.Networking.BackgroundTransfer {
public sealed class DownloadOperation : IBackgroundTransferOperation, IBackgroundTransferOperationPriority {
void MakeCurrentInTransferGroup();
}
public sealed class UploadOperation : IBackgroundTransferOperation, IBackgroundTransferOperationPriority {
void MakeCurrentInTransferGroup();
}
}
namespace Windows.Networking.Connectivity {
public sealed class CellularApnContext {
string ProfileName { get; set; }
}
public sealed class ConnectionProfileFilter {
IReference<Guid> PurposeGuid { get; set; }
}
public sealed class WwanConnectionProfileDetails {
WwanNetworkIPKind IPKind { get; }
IVectorView<Guid> PurposeGuids { get; }
}
public enum WwanNetworkIPKind
}
namespace Windows.Networking.NetworkOperators {
public sealed class MobileBroadbandAntennaSar {
public MobileBroadbandAntennaSar(int antennaIndex, int sarBackoffIndex);
}
public sealed class MobileBroadbandModem {
IAsyncOperation<MobileBroadbandPco> TryGetPcoAsync();
}
public sealed class MobileBroadbandModemIsolation
public sealed class MobileBroadbandPco
public sealed class MobileBroadbandPcoDataChangeTriggerDetails
}
namespace Windows.Networking.Sockets {
public sealed class ServerMessageWebSocket : IClosable
public sealed class ServerMessageWebSocketControl
public sealed class ServerMessageWebSocketInformation
public sealed class ServerStreamWebSocket : IClosable
public sealed class ServerStreamWebSocketInformation
}
namespace Windows.Security.Authentication.Identity.Provider {
public enum SecondaryAuthenticationFactorAuthenticationMessage {
CanceledByUser = 22,
CenterHand = 23,
ConnectionRequired = 20,
DeviceUnavaliable = 28,
MoveHandCloser = 24,
MoveHandFarther = 25,
PlaceHandAbove = 26,
RecognitionFailed = 27,
TimeLimitExceeded = 21,
}
}
namespace Windows.Services.Maps {
public sealed class MapRouteDrivingOptions {
IReference<DateTime> DepartureTime { get; set; }
}
}
namespace Windows.System {
public sealed class AppActivationResult
public sealed class AppDiagnosticInfo {
IAsyncOperation<AppActivationResult> ActivateAsync();
}
public sealed class AppResourceGroupInfo {
IAsyncOperation<bool> TryResumeAsync();
IAsyncOperation<bool> TrySuspendAsync();
IAsyncOperation<bool> TryTerminateAsync();
}
}
namespace Windows.System.Diagnostics.DevicePortal {
public sealed class DevicePortalConnection {
ServerMessageWebSocket GetServerMessageWebSocketForRequest(HttpRequestMessage request);
ServerMessageWebSocket GetServerMessageWebSocketForRequest(HttpRequestMessage request, SocketMessageType messageType, string protocol);
ServerMessageWebSocket GetServerMessageWebSocketForRequest(HttpRequestMessage request, SocketMessageType messageType, string protocol, uint outboundBufferSizeInBytes, uint maxMessageSize, MessageWebSocketReceiveMode receiveMode);
ServerStreamWebSocket GetServerStreamWebSocketForRequest(HttpRequestMessage request);
ServerStreamWebSocket GetServerStreamWebSocketForRequest(HttpRequestMessage request, string protocol, uint outboundBufferSizeInBytes, bool noDelay);
}
public sealed class DevicePortalConnectionRequestReceivedEventArgs {
bool IsWebSocketUpgradeRequest { get; }
IVectorView<string> WebSocketProtocolsRequested { get; }
Deferral GetDeferral();
}
}
namespace Windows.System.RemoteSystems {
public static class KnownRemoteSystemCapabilities {
public static string NearShare { get; }
}
}
namespace Windows.System.UserProfile {
public static class GlobalizationPreferences {
public static GlobalizationPreferencesForUser GetForUser(User user);
}
public sealed class GlobalizationPreferencesForUser
}
namespace Windows.UI.Composition {
public class CompositionLight : CompositionObject {
bool IsEnabled { get; set; }
}
public sealed class Compositor : IClosable {
string Comment { get; set; }
}
public sealed class PointLight : CompositionLight {
Vector2 AttenuationCutoff { get; set; }
}
public sealed class SpotLight : CompositionLight {
Vector2 AttenuationCutoff { get; set; }
}
}
namespace Windows.UI.Composition.Core {
public sealed class CompositorController : IClosable
}
namespace Windows.UI.Xaml {
public sealed class BringIntoViewOptions {
IReference<double> HorizontalAlignmentRatio { get; set; }
Point Offset { get; set; }
IReference<double> VerticalAlignmentRatio { get; set; }
}
public sealed class BringIntoViewRequestedEventArgs : RoutedEventArgs
public sealed class EffectiveViewportChangedEventArgs
public class FrameworkElement : UIElement {
event TypedEventHandler<FrameworkElement, EffectiveViewportChangedEventArgs> EffectiveViewportChanged;
void InvalidateViewport();
virtual bool IsViewport();
}
public class UIElement : DependencyObject {
public static RoutedEvent BringIntoViewRequestedEvent { get; }
KeyboardAcceleratorPlacementMode KeyboardAcceleratorPlacementMode { get; set; }
public static DependencyProperty KeyboardAcceleratorPlacementModeProperty { get; }
DependencyObject KeyboardAcceleratorToolTipTarget { get; set; }
public static DependencyProperty KeyboardAcceleratorToolTipTargetProperty { get; }
DependencyObject KeyTipTarget { get; set; }
public static DependencyProperty KeyTipTargetProperty { get; }
event TypedEventHandler<UIElement, BringIntoViewRequestedEventArgs> BringIntoViewRequested;
virtual void OnBringIntoViewRequested(BringIntoViewRequestedEventArgs e);
virtual void OnKeyboardAcceleratorInvoked(KeyboardAcceleratorInvokedEventArgs args);
}
}
namespace Windows.UI.Xaml.Automation.Peers {
public sealed class AutoSuggestBoxAutomationPeer : FrameworkElementAutomationPeer, IInvokeProvider {
void Invoke();
}
}
namespace Windows.UI.Xaml.Controls {
public class AppBarButton : Button, ICommandBarElement, ICommandBarElement2 {
string KeyboardAcceleratorText { get; set; }
public static DependencyProperty KeyboardAcceleratorTextProperty { get; }
AppBarButtonTemplateSettings TemplateSettings { get; }
}
public class AppBarToggleButton : ToggleButton, ICommandBarElement, ICommandBarElement2 {
string KeyboardAcceleratorText { get; set; }
public static DependencyProperty KeyboardAcceleratorTextProperty { get; }
AppBarToggleButtonTemplateSettings TemplateSettings { get; }
}
public class MenuFlyoutItem : MenuFlyoutItemBase {
string KeyboardAcceleratorText { get; set; }
public static DependencyProperty KeyboardAcceleratorTextProperty { get; }
MenuFlyoutItemTemplateSettings TemplateSettings { get; }
}
public class NavigationView : ContentControl {
string PaneTitle { get; set; }
public static DependencyProperty PaneTitleProperty { get; }
event TypedEventHandler<NavigationView, object> PaneClosed;
event TypedEventHandler<NavigationView, NavigationViewPaneClosingEventArgs> PaneClosing;
event TypedEventHandler<NavigationView, object> PaneOpened;
event TypedEventHandler<NavigationView, object> PaneOpening;
}
public sealed class NavigationViewPaneClosingEventArgs
public enum WebViewPermissionType {
Screen = 5,
}
}
namespace Windows.UI.Xaml.Controls.Primitives {
public sealed class AppBarButtonTemplateSettings : DependencyObject
public sealed class AppBarToggleButtonTemplateSettings : DependencyObject
public sealed class MenuFlyoutItemTemplateSettings : DependencyObject
}
namespace Windows.UI.Xaml.Input {
public sealed class KeyboardAcceleratorInvokedEventArgs {
KeyboardAccelerator KeyboardAccelerator { get; }
}
public enum KeyboardAcceleratorPlacementMode

}

Windows 10 SDK Preview Build 16288 and Mobile Emulator Build 15240 Released

Today, we released a new Windows 10 Preview Build of the SDK and the Mobile Emulator to be used in conjunction with Windows 10 Insider Preview (Build 16288 or greater). The Preview SDK Build 16288 contains bug fixes and under development changes to the API surface area.
The Preview SDK and Mobile Emulator 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 Creators build or earlier to the Store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
Breaking Changes
ecmangen.exe removal from the SDK:  Ecmangen.exe will no longer ship with the Windows SDK. Developers who rely on ecmangen for event manifest creation are advised to install the Windows Creators Edition of the SDK to obtain the file. Developers may also use notepad or other XML editor of choice for manifest creation. A schema file is available on MSDN to aid in manifest creation, for tools that support it.
API Updates and Additions
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices. Please see Dynamically detecting features with API contracts (10 by 10) for more information. 
There have been no changes since build 16278 to the API surface.

Windows 10 SDK Preview Build 16278 and Mobile Emulator Build 15240 Released

Today, we released a new Windows 10 Preview Build of the SDK and the Mobile Emulator to be used in conjunction with Windows 10 Insider Preview (Build 16278 or greater). The Preview SDK Build 16278 contains bug fixes and under development changes to the API surface area.
The Preview SDK and Mobile Emulator 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 Creators build or earlier to the Windows Store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
Known Issues:
Compilation fails on non-Windows 10 platforms
When building apps with the minimum target platform version set to 10.0.16278.0 you get the build error:
“The program can’t start because api-ms-win-eventing-classicprovider-l1-1-0.dll is missing from your computer. Try reinstalling the program to fix the problem.”
This will occur if the minimum target platform version is set to 10.0.16278.0. To work around this, edit your project file and change the version to a previous released SDK. For example:

&lt;WindowsTargetPlatformMinVersion&gt;10.0.10586.0&lt;/WindowsTargetPlatformMinVersion&gt;

Breaking Changes
ecmangen.exe removal from the SDK: Ecmangen.exe will no longer ship with the Windows SDK. Developers who rely on ecmangen for event manifest creation are advised to install the Windows Creators Edition of the SDK to obtain the file. Developers may also use notepad or other XML editor of choice for manifest creation. A schema file is available on MSDN to aid in manifest creation, for tools that support it.
API Updates and Additions
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices. Please see Dynamically detecting features with API contracts (10 by 10) for more information.
The following are the API changes since the 16267 Preview SDK, please reference that list.
Additions APIs since Preview SDK 16267

namespace Windows.Storage.Provider {
public enum StorageProviderHardlinkPolicy : uint
public enum StorageProviderHydrationPolicy
public enum StorageProviderHydrationPolicyModifier : uint
public enum StorageProviderInSyncPolicy : uint
public enum StorageProviderPopulationPolicy
public enum StorageProviderProtectionMode
public sealed class StorageProviderSyncRootInfo {
StorageProviderHardlinkPolicy HardlinkPolicy { get; set; }
StorageProviderHydrationPolicy HydrationPolicy { get; set; }
StorageProviderHydrationPolicyModifier HydrationPolicyModifier { get; set; }
StorageProviderInSyncPolicy InSyncPolicy { get; set; }
StorageProviderPopulationPolicy PopulationPolicy { get; set; }
StorageProviderProtectionMode ProtectionMode { get; set; }
}
}

Removal of APIs since Preview SDK 16267

namespace Windows.Storage.Provider {
public enum HardlinkPolicy : uint
public enum HydrationPolicy
public enum HydrationPolicyModifier : uint
public enum InSyncPolicy : uint
public enum PopulationPolicy
public enum ProtectionMode
public sealed class StorageProviderSyncRootInfo {
HardlinkPolicy HardlinkPolicy { get; set; }
HydrationPolicy HydrationPolicy { get; set; }
HydrationPolicyModifier HydrationPolicyModifier { get; set; }
InSyncPolicy InSyncPolicy { get; set; }
PopulationPolicy PopulationPolicy { get; set; }
ProtectionMode ProtectionMode { get; set; }
}
}

Windows 10 SDK Preview Build 16267 and Mobile Emulator Build 15240 Released

Today, we released a new Windows 10 Preview Build of the SDK and the Mobile Emulator to be used in conjunction with Windows 10 Insider Preview (Build 16267 or greater). The Preview SDK Build 16267 contains bug fixes and under development changes to the API surface area.
The Preview SDK and Mobile Emulator 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 continue to submit your apps that target Windows 10 Creators build or earlier to the Windows Store.
The Windows SDK will now formally only be supported by Visual Studio 2017 and greater. You can download the Visual Studio 2017 here.
Known Issues
Compilation fails on non-Windows 10 platformsWhen building apps on previous platforms, you may get a build error:
C:program files (x86)Windows Kits10bin10.0.16232.0x86genxbf.dll:C:program files (x860Windows Kits10bin10.0.16232.0x86genxbf.dll(0,0): Error WMC0621: Cannot resolve ‘GenXbf.dll’ under path ‘C:program files (x860Windows Kits10bin10.0.16232.0x86genxbf.dll’.  Please install the latest version of the Windows 10 Software Development Kit.
Process ‘msbuild.exe’ exited with code ‘1’.
This will occur if the minimum target platform version is set to 10.0.16225.0. To work around this, right click on your project file and choose properties or open your project file in your favorite editor, and change the version to a previous released SDK. For example:

&lt;WindowsTargetPlatformMinVersion&gt;10.0.10586.0&lt;/WindowsTargetPlatformMinVersion&gt;

Breaking Changes
ecmangen.exe removal from the SDK: Ecmangen.exe will no longer ship with the Windows SDK. Developers who rely on ecmangen for event manifest creation are advised to install the Windows Creators Edition of the SDK to obtain the file. Developers may also use notepad or other XML editor of choice for manifest creation. A schema file is available on MSDN to aid in manifest creation, for tools that support it.
API Updates and Additions
When targeting new APIs, consider writing your app to be adaptive in order to run correctly on the widest number of Windows 10 devices. Please see Dynamically detecting features with API contracts (10 by 10) for more information.
The following are the API changes since the 16257 Preview SDK, please reference that list.
Additions to Preview SDK 16257

 
namespace Windows.Storage.Provider {
public enum HardlinkPolicy : uint
public enum HydrationPolicy {
AlwaysFull = 3,
Partial = 0,
}
public enum InSyncPolicy : uint {
DirectoryLastWriteTime = (uint)512,
FileLastWriteTime = (uint)256,
}
public enum PopulationPolicy {
AlwaysFull = 2,
}
public sealed class StorageProviderSyncRootInfo {
HardlinkPolicy HardlinkPolicy { get; set; }
}
}
namespace Windows.UI.WebUI {
public sealed class WebUIStartupTaskActivatedEventArgs : IActivatedEventArgs, IActivatedEventArgsDeferral, IActivatedEventArgsWithUser, IStartupTaskActivatedEventArgs {
ActivatedOperation ActivatedOperation { get; }
}
}

Removals from Preview SDK 16257

 
namespace Windows.Storage.Provider {
public enum HydrationPolicy {
NoPartial = 3,
OnDemand = 0,
}
public enum PopulationPolicy {
NoPartial = 2,
}
}