BackgroundMediaPlayer.MessageReceivedFromBackground 事件
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。
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