RateChangedRoutedEventArgs 类

定义

提供 RateChanged 事件的事件数据。

public ref class RateChangedRoutedEventArgs sealed : RoutedEventArgs
/// [Windows.Foundation.Metadata.Activatable(65536, Windows.Foundation.UniversalApiContract)]
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class RateChangedRoutedEventArgs final : RoutedEventArgs
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
class RateChangedRoutedEventArgs final : RoutedEventArgs
[Windows.Foundation.Metadata.Activatable(65536, typeof(Windows.Foundation.UniversalApiContract))]
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class RateChangedRoutedEventArgs : RoutedEventArgs
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(65536, "Windows.Foundation.UniversalApiContract")]
public sealed class RateChangedRoutedEventArgs : RoutedEventArgs
Public NotInheritable Class RateChangedRoutedEventArgs
Inherits RoutedEventArgs
继承
Object Platform::Object IInspectable RoutedEventArgs RateChangedRoutedEventArgs
属性

Windows 要求

设备系列
Windows 10 (在 10.0.10240.0 中引入)
API contract
Windows.Foundation.UniversalApiContract (在 v1.0 中引入)

注解

当 PlaybackRateDefaultPlaybackRate 更改时,将触发 RateChanged 事件。

事件数据中未提供新的 PlaybackRateDefaultPlaybackRate 值(无论属性发生更改)。 应用程序应查询 RateChangedRoutedEventHandler 内的 PlaybackRateDefaultPlaybackRate 以获取新速率。

构造函数

RateChangedRoutedEventArgs()

初始化 RateChangedRoutedEventArgs 类的新实例。

属性

OriginalSource

获取对引发事件的 对象的引用。 这通常是控件的模板部分,而不是在应用 UI 中声明的元素。

(继承自 RoutedEventArgs)

适用于

另请参阅