BackgroundMediaPlayer.MessageReceivedFromBackground 事件

定义

从后台任务收到消息时发生。

注意

从 Windows 版本 1703 开始,BackgroundMediaPlayer 已弃用,并且在 Windows 的未来版本中可能不可用。 请改用 MediaPlayer 类。 有关详细信息,请参阅 在后台播放媒体

// Register
static event_token MessageReceivedFromBackground(EventHandler<MediaPlayerDataReceivedEventArgs> const& handler) const;

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

// Revoke with event_revoker
static BackgroundMediaPlayer::MessageReceivedFromBackground_revoker MessageReceivedFromBackground(auto_revoke_t, EventHandler<MediaPlayerDataReceivedEventArgs> const& handler) const;
/// [add: Windows.Foundation.Metadata.Deprecated("Use MediaPlayer instead of BackgroundMediaPlayer.  For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 262144, "Windows.Foundation.UniversalApiContract")]
/// [remove: Windows.Foundation.Metadata.Deprecated("Use MediaPlayer instead of BackgroundMediaPlayer.  For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 262144, "Windows.Foundation.UniversalApiContract")]
// Register
static event_token MessageReceivedFromBackground(EventHandler<MediaPlayerDataReceivedEventArgs> const& handler) const;

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

// Revoke with event_revoker
static BackgroundMediaPlayer::MessageReceivedFromBackground_revoker MessageReceivedFromBackground(auto_revoke_t, EventHandler<MediaPlayerDataReceivedEventArgs> const& handler) const;
public static event System.EventHandler<MediaPlayerDataReceivedEventArgs> MessageReceivedFromBackground;
[add: Windows.Foundation.Metadata.Deprecated("Use MediaPlayer instead of BackgroundMediaPlayer.  For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 262144, "Windows.Foundation.UniversalApiContract")]
[remove: Windows.Foundation.Metadata.Deprecated("Use MediaPlayer instead of BackgroundMediaPlayer.  For more info, see MSDN.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 262144, "Windows.Foundation.UniversalApiContract")]
public static event System.EventHandler<MediaPlayerDataReceivedEventArgs> MessageReceivedFromBackground;
function onMessageReceivedFromBackground(eventArgs) { /* Your code */ }
Windows.Media.Playback.BackgroundMediaPlayer.addEventListener("messagereceivedfrombackground", onMessageReceivedFromBackground);
Windows.Media.Playback.BackgroundMediaPlayer.removeEventListener("messagereceivedfrombackground", onMessageReceivedFromBackground);
- or -
Windows.Media.Playback.BackgroundMediaPlayer.onmessagereceivedfrombackground = onMessageReceivedFromBackground;
Public Shared Custom Event MessageReceivedFromBackground As EventHandler(Of MediaPlayerDataReceivedEventArgs) 

事件类型

属性

适用于