通过

PlayToReceiver.VolumeChangeRequested 事件

  • 参考

定义

命名空间:
Windows.Media.PlayTo
编辑

当源音频或视频的音量已更改时发生。

// Register
event_token VolumeChangeRequested(TypedEventHandler<PlayToReceiver, VolumeChangeRequestedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
PlayToReceiver::VolumeChangeRequested_revoker VolumeChangeRequested(auto_revoke_t, TypedEventHandler<PlayToReceiver, VolumeChangeRequestedEventArgs const&> const& handler) const;
public event TypedEventHandler<PlayToReceiver,VolumeChangeRequestedEventArgs> VolumeChangeRequested;
function onVolumeChangeRequested(eventArgs) { /* Your code */ }
playToReceiver.addEventListener("volumechangerequested", onVolumeChangeRequested);
playToReceiver.removeEventListener("volumechangerequested", onVolumeChangeRequested);
- or -
playToReceiver.onvolumechangerequested = onVolumeChangeRequested;
Public Custom Event VolumeChangeRequested As TypedEventHandler(Of PlayToReceiver, VolumeChangeRequestedEventArgs)

事件类型

TypedEventHandler<PlayToReceiver,VolumeChangeRequestedEventArgs>

注解

有关创建软件“播放到”接收器的示例，请参阅 媒体强制转换。

async void receiver_VolumeChangeRequested(
    Windows.Media.PlayTo.PlayToReceiver sender,
    Windows.Media.PlayTo.VolumeChangeRequestedEventArgs args)
{
    await dispatcher.RunAsync(
        Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
        {
            VideoPlayer.Volume = args.Volume;
        });
}

Async Sub receiver_VolumeChangeRequested(
    sender As Windows.Media.PlayTo.PlayToReceiver,
    args As Windows.Media.PlayTo.VolumeChangeRequestedEventArgs)

    Await Dispatcher.RunAsync(
        Windows.UI.Core.CoreDispatcherPriority.Normal,
        Sub()
            VideoPlayer.Volume = args.Volume
        End Sub)
End Sub

适用于

另请参阅