通过

PlayToReceiver.SourceChangeRequested 事件

  • 参考

定义

命名空间:
Windows.Media.PlayTo
编辑

当“播放到”接收器的源媒体发生更改时发生。

// Register
event_token SourceChangeRequested(TypedEventHandler<PlayToReceiver, SourceChangeRequestedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
PlayToReceiver::SourceChangeRequested_revoker SourceChangeRequested(auto_revoke_t, TypedEventHandler<PlayToReceiver, SourceChangeRequestedEventArgs const&> const& handler) const;
public event TypedEventHandler<PlayToReceiver,SourceChangeRequestedEventArgs> SourceChangeRequested;
function onSourceChangeRequested(eventArgs) { /* Your code */ }
playToReceiver.addEventListener("sourcechangerequested", onSourceChangeRequested);
playToReceiver.removeEventListener("sourcechangerequested", onSourceChangeRequested);
- or -
playToReceiver.onsourcechangerequested = onSourceChangeRequested;
Public Custom Event SourceChangeRequested As TypedEventHandler(Of PlayToReceiver, SourceChangeRequestedEventArgs)

事件类型

TypedEventHandler<PlayToReceiver,SourceChangeRequestedEventArgs>

注解

有关创建软件“播放到”接收器的示例，请参阅 媒体转换。

async void receiver_SourceChangeRequested(
    Windows.Media.PlayTo.PlayToReceiver sender,
    Windows.Media.PlayTo.SourceChangeRequestedEventArgs args)
{
    if (args.Stream != null)
        await dispatcher.RunAsync(
            Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
            {
                var stream = args.Stream as Windows.Storage.Streams.IRandomAccessStream;
                VideoPlayer.SetSource(stream, args.Stream.ContentType);
            });
}

Async Sub receiver_SourceChangeRequested(
    sender As Windows.Media.PlayTo.PlayToReceiver,
    args As Windows.Media.PlayTo.SourceChangeRequestedEventArgs)

    If args.Stream IsNot Nothing Then
        Await Dispatcher.RunAsync(
            Windows.UI.Core.CoreDispatcherPriority.Normal,
            Sub()
                Dim stream = TryCast(args.Stream, Windows.Storage.Streams.IRandomAccessStream)
                VideoPlayer.SetSource(stream, args.Stream.ContentType)
            End Sub)
    End If
End Sub

适用于

另请参阅