RateChangedRoutedEventArgs 类
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
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
- 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 PlaybackRate 或 DefaultPlaybackRate 更改时,将触发 RateChanged 事件。
事件数据中未提供新的 PlaybackRate 或 DefaultPlaybackRate 值(无论属性发生更改)。 应用程序应查询 RateChangedRoutedEventHandler 内的 PlaybackRate 或 DefaultPlaybackRate 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) |