AppBroadcastHeartbeatRequestedEventArgs 类

定义

命名空间:

Windows.Media.Capture

为系统定期引发的 AppBroadcastBackgroundService.HeartbeatRequested 事件提供数据，以确认广播后台任务当前处于活动状态。

注意

此 API 需要 appBroadcast 和 appBroadcastSettings 功能，这些功能并非适用于所有 Windows 应用。 除非你的开发人员帐户由 Microsoft 专门预配，否则对此 API 的调用将在运行时失败。

public ref class AppBroadcastHeartbeatRequestedEventArgs sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Media.Capture.AppBroadcastContract, 65536)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class AppBroadcastHeartbeatRequestedEventArgs final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Media.Capture.AppBroadcastContract), 65536)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class AppBroadcastHeartbeatRequestedEventArgs

Public NotInheritable Class AppBroadcastHeartbeatRequestedEventArgs

继承

Object Platform::Object IInspectable AppBroadcastHeartbeatRequestedEventArgs

属性

ContractVersionAttribute ThreadingAttribute

Windows 要求

设备系列	Windows Desktop Extension SDK (在 10.0.15063.0 中引入)
API contract	Windows.Media.Capture.AppBroadcastContract (在 v1.0 中引入)
应用功能	appBroadcast appBroadcastSettings

注解

在 HeartbeatRequested 事件的处理程序中，将 Handled 属性设置为 true 以确认广播后台任务当前处于活动状态。

属性

Handled

获取或设置一个值，该值指示广播后台任务当前是否处于活动状态。