通过

MediaTransportControls.ThumbnailRequested 事件

  • 参考

定义

命名空间:
Windows.UI.Xaml.Controls
编辑

当用户执行查找操作时，每当应用需要显示与查找栏相邻的缩略图时发生。

// Register
event_token ThumbnailRequested(TypedEventHandler<MediaTransportControls, MediaTransportControlsThumbnailRequestedEventArgs const&> const& handler) const;

// Revoke with event_token
void ThumbnailRequested(event_token const* cookie) const;

// Revoke with event_revoker
MediaTransportControls::ThumbnailRequested_revoker ThumbnailRequested(auto_revoke_t, TypedEventHandler<MediaTransportControls, MediaTransportControlsThumbnailRequestedEventArgs const&> const& handler) const;
public event TypedEventHandler<MediaTransportControls,MediaTransportControlsThumbnailRequestedEventArgs> ThumbnailRequested;
function onThumbnailRequested(eventArgs) { /* Your code */ }
mediaTransportControls.addEventListener("thumbnailrequested", onThumbnailRequested);
mediaTransportControls.removeEventListener("thumbnailrequested", onThumbnailRequested);
- or -
mediaTransportControls.onthumbnailrequested = onThumbnailRequested;
Public Custom Event ThumbnailRequested As TypedEventHandler(Of MediaTransportControls, MediaTransportControlsThumbnailRequestedEventArgs)

事件类型

TypedEventHandler<MediaTransportControls,MediaTransportControlsThumbnailRequestedEventArgs>

Windows 要求

设备系列
Windows 10 Anniversary Edition (在 10.0.14393.0 中引入)
API contract
Windows.Foundation.UniversalApiContract (在 v3.0 中引入)

注解

仅当 MediaTransportControls 与 MediaPlayerElement 一起使用时，才会引发此事件。 当 MediaTransportControls 与 MediaElement 一起使用时，不会引发它。

适用于