通过

BarcodeScannerHideVideoPreviewRequest 类

  • 参考

定义

命名空间:
Windows.Devices.PointOfService.Provider
编辑

表示隐藏视频预览窗口的请求。

public ref class BarcodeScannerHideVideoPreviewRequest sealed
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class BarcodeScannerHideVideoPreviewRequest final
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class BarcodeScannerHideVideoPreviewRequest final
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class BarcodeScannerHideVideoPreviewRequest
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class BarcodeScannerHideVideoPreviewRequest
Public NotInheritable Class BarcodeScannerHideVideoPreviewRequest
继承
Object Platform::Object IInspectable BarcodeScannerHideVideoPreviewRequest
属性
ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows 要求

设备系列
Windows 10, version 1803 (在 10.0.17134.0 中引入)
API contract
Windows.Foundation.UniversalApiContract (在 v6.0 中引入)

注解

系统生成此类的实例，并将其设置为 HideVideoPreviewRequested 事件的 BarcodeScannerHideVideoPreviewRequestEventArgs 参数中的属性。

版本历史记录

Windows 版本 SDK 版本 增值
1809 17763 ReportFailedAsync (Int32)
1809 17763 ReportFailedAsync (Int32，String)

方法

ReportCompletedAsync()

通知客户端应用请求已成功处理。
ReportFailedAsync()

通知客户端请求未成功处理。
ReportFailedAsync(Int32, String)

通知客户端请求未成功处理。
ReportFailedAsync(Int32)

通知客户端请求未成功处理。

适用于