SystemMediaTransportControls.PlaybackPositionChangeRequested 事件

定義

命名空間:

Windows.Media

發生于使用者修改 SystemMediaTransportControls的播放位置時。

// Register
event_token PlaybackPositionChangeRequested(TypedEventHandler<SystemMediaTransportControls, PlaybackPositionChangeRequestedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
SystemMediaTransportControls::PlaybackPositionChangeRequested_revoker PlaybackPositionChangeRequested(auto_revoke_t, TypedEventHandler<SystemMediaTransportControls, PlaybackPositionChangeRequestedEventArgs const&> const& handler) const;

public event TypedEventHandler<SystemMediaTransportControls,PlaybackPositionChangeRequestedEventArgs> PlaybackPositionChangeRequested;

function onPlaybackPositionChangeRequested(eventArgs) { /* Your code */ }
systemMediaTransportControls.addEventListener("playbackpositionchangerequested", onPlaybackPositionChangeRequested);
systemMediaTransportControls.removeEventListener("playbackpositionchangerequested", onPlaybackPositionChangeRequested);
- or -
systemMediaTransportControls.onplaybackpositionchangerequested = onPlaybackPositionChangeRequested;

Public Custom Event PlaybackPositionChangeRequested As TypedEventHandler(Of SystemMediaTransportControls, PlaybackPositionChangeRequestedEventArgs) 

事件類型

TypedEventHandler<SystemMediaTransportControls,PlaybackPositionChangeRequestedEventArgs>

備註

註冊此事件會導致 應用程式在 SystemMediaTransportControls 播放位置變更時收到通知。 應用程式可以根據要求變更其自動重複行為，或藉由填入SystemMediaTransportControlsTimelineProperties 物件來填入 SystemMediaTransportControlsTimelineProperties物件，並以指出實際播放位置並呼叫SystemMediaTransportControls.UpdateTimelineProperties 的值來更新 SystemMediaTransportControls。