MediaControl.PreviousTrackPressed 事件

定义

命名空间:

Windows.Media

注意

Windows 8.1后，MediaControl 可能会更改或不可用。 请改用 SystemMediaTransportControls。

向应用程序发出 PreviousTrack 命令时引发的事件。

/// [add: Windows.Foundation.Metadata.Deprecated("MediaControl may be altered or unavailable for releases after Windows 8.1. Instead, use SystemMediaTransportControls.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Media.MediaControlContract")]
/// [remove: Windows.Foundation.Metadata.Deprecated("MediaControl may be altered or unavailable for releases after Windows 8.1. Instead, use SystemMediaTransportControls.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Media.MediaControlContract")]
// Register
static event_token PreviousTrackPressed(EventHandler<IInspectable> const& handler) const;

// Revoke with event_token
static void PreviousTrackPressed(event_token const* cookie) const;

// Revoke with event_revoker
static MediaControl::PreviousTrackPressed_revoker PreviousTrackPressed(auto_revoke_t, EventHandler<IInspectable> const& handler) const;

[add: Windows.Foundation.Metadata.Deprecated("MediaControl may be altered or unavailable for releases after Windows 8.1. Instead, use SystemMediaTransportControls.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Media.MediaControlContract")]
[remove: Windows.Foundation.Metadata.Deprecated("MediaControl may be altered or unavailable for releases after Windows 8.1. Instead, use SystemMediaTransportControls.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Media.MediaControlContract")]
public static event System.EventHandler<object> PreviousTrackPressed;

function onPreviousTrackPressed(eventArgs) { /* Your code */ }
Windows.Media.MediaControl.addEventListener("previoustrackpressed", onPreviousTrackPressed);
Windows.Media.MediaControl.removeEventListener("previoustrackpressed", onPreviousTrackPressed);
- or -
Windows.Media.MediaControl.onprevioustrackpressed = onPreviousTrackPressed;

Public Shared Custom Event PreviousTrackPressed As EventHandler(Of Object) 

事件类型

EventHandler<Object>

EventHandler<Object>

EventHandler<IInspectable>

属性

DeprecatedAttribute

另请参阅

• 如何为媒体控件配置键