PlayToSourceSelectedEventArgs クラス

定義

名前空間:

Windows.Media.PlayTo

SourceSelected イベントに関する情報を提供します。

public ref class PlayToSourceSelectedEventArgs sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Deprecated("PlayToSourceSelectedEventArgs may be altered or unavailable for releases after Windows 10.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Foundation.UniversalApiContract")]
class PlayToSourceSelectedEventArgs final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Deprecated("PlayToSourceSelectedEventArgs may be altered or unavailable for releases after Windows 10.", Windows.Foundation.Metadata.DeprecationType.Deprecate, 65536, "Windows.Foundation.UniversalApiContract")]
public sealed class PlayToSourceSelectedEventArgs

Public NotInheritable Class PlayToSourceSelectedEventArgs

継承

Object Platform::Object IInspectable PlayToSourceSelectedEventArgs

属性

ContractVersionAttribute DeprecatedAttribute MarshalingBehaviorAttribute

Windows の要件

デバイス ファミリ	Windows 10 (10.0.10240.0 で導入)
API contract	Windows.Foundation.UniversalApiContract (v1.0 で導入)

例

 private Windows.Media.PlayTo.PlayToManager ptm = 
         Windows.Media.PlayTo.PlayToManager.GetForCurrentView();

 protected override void OnNavigatedTo(NavigationEventArgs e)
 {
     ptm.SourceRequested += sourceRequestHandlerWithEvents;
     ptm.SourceSelected += sourceSelectedHandler;
 }

 private void sourceRequestHandlerWithEvents(
 Windows.Media.PlayTo.PlayToManager sender,
 Windows.Media.PlayTo.PlayToSourceRequestedEventArgs e)
 {
     try
     {
         var controller = mediaElement.PlayToSource;

         controller.Connection.Error += playToConnectionError;
         controller.Connection.StateChanged += playToConnectionStageChanged;
         controller.Connection.Transferred += playToConnectionTransferred;

         e.SourceRequest.SetSource(controller);
     }
     catch (Exception ex)
     {
         messageBlock.Text += "Exception encountered: " + ex.Message + "\n";
     }
 }

 // Called when the user selects a Play To device to stream to.

 private void sourceSelectedHandler(
     Windows.Media.PlayTo.PlayToManager sender,
     Windows.Media.PlayTo.PlayToSourceSelectedEventArgs e)
 {
     if (mediaElement.Name == "iplayer") {
         if (!e.SupportsImage) {
             messageBlock.Text += e.FriendlyName + " does not support streaming images. " +
                                  "Please select a different device.";
             return;
         }
     }

     if (mediaElement.Name == "vplayer") {
         if (!e.SupportsVideo) {
             messageBlock.Text += e.FriendlyName + " does not support streaming video. " +
                                  "Please select a different device.";
             return;
         }
     }

     if (mediaElement.Name == "aplayer") {
         if (!e.SupportsAudio) {
             messageBlock.Text += e.FriendlyName + " does not support streaming audio. " +
                                  "Please select a different device.";
             return;
         }
     }

     Windows.Storage.Streams.IRandomAccessStream iconStream = e.Icon;
     Windows.UI.Xaml.Media.Imaging.BitmapImage iconBitmap = 
             new Windows.UI.Xaml.Media.Imaging.BitmapImage();
     iconBitmap.SetSource(iconStream);
     playToDeviceIconImage.Source = iconBitmap;

     playToDeviceFriendlyNameBlock.Text = e.FriendlyName;
 }

 private void playToConnectionError(
     Windows.Media.PlayTo.PlayToConnection connection,
     Windows.Media.PlayTo.PlayToConnectionErrorEventArgs e)
 {
     if (e.Code == Windows.Media.PlayTo.PlayToConnectionError.DeviceError ||
         e.Code == Windows.Media.PlayTo.PlayToConnectionError.DeviceNotResponding) 
     {
         messageBlock.Text += "Error occurred. Disconnecting.\n";
     }

     messageBlock.Text += "Error: Message = " + e.Message.ToString() + "\n";
 }

private void playToConnectionStageChanged(
    Windows.Media.PlayTo.PlayToConnection connection, 
    Windows.Media.PlayTo.PlayToConnectionStateChangedEventArgs e) 
 {
     messageBlock.Text += "StateChanged: PreviousState = " + e.PreviousState.ToString() + "\n";
     messageBlock.Text += "StateChanged: CurrentState = " + e.CurrentState.ToString() + "\n";
 }

private void playToConnectionTransferred(
    Windows.Media.PlayTo.PlayToConnection connection, 
    Windows.Media.PlayTo.PlayToConnectionTransferredEventArgs e)
 {
     messageBlock.Text += "Transferred: PreviousSource = " + e.PreviousSource.ToString() + "\n";
     messageBlock.Text += "Transferred: CurrentSource = " + e.CurrentSource.ToString() + "\n";
 }

Private ptm As Windows.Media.PlayTo.PlayToManager =
        Windows.Media.PlayTo.PlayToManager.GetForCurrentView()

Protected Overrides Sub OnNavigatedTo(e As Navigation.NavigationEventArgs)
    AddHandler ptm.SourceRequested, AddressOf sourceRequestHandlerWithEvents
    AddHandler ptm.SourceSelected, AddressOf sourceSelectedHandler
End Sub

Private Sub sourceRequestHandlerWithEvents(
    sender As Windows.Media.PlayTo.PlayToManager,
    e As Windows.Media.PlayTo.PlayToSourceRequestedEventArgs)

    Try
        Dim controller = mediaElement.PlayToSource

        AddHandler controller.Connection.Error, AddressOf playToConnectionError
        AddHandler controller.Connection.StateChanged, AddressOf playToConnectionStageChanged
        AddHandler controller.Connection.Transferred, AddressOf playToConnectionTransferred

        e.SourceRequest.SetSource(controller)
    Catch ex As Exception
        messageBlock.Text &= "Exception encountered: " & ex.Message & vbCrLf
    End Try
End Sub

' Called when the user selects a Play To device to stream to.

Private Sub sourceSelectedHandler(
    sender As Windows.Media.PlayTo.PlayToManager,
    e As Windows.Media.PlayTo.PlayToSourceSelectedEventArgs)

    If mediaElement.Name = "iplayer" Then
        If Not e.SupportsImage Then
            messageBlock.Text &= e.FriendlyName & " does not support streaming images. " &
                                 "Please select a different device."
            Return
        End If
    End If

    If mediaElement.Name = "vplayer" Then
        If Not e.SupportsVideo Then
            messageBlock.Text &= e.FriendlyName & " does not support streaming video. " &
                                 "Please select a different device."
            Return
        End If
    End If

    If mediaElement.Name = "aplayer" Then
        If Not e.SupportsAudio Then
            messageBlock.Text &= e.FriendlyName & " does not support streaming audio. " &
                                 "Please select a different device."
            Return
        End If
    End If

    Dim iconStream = e.Icon
    Dim iconBitmap = New Windows.UI.Xaml.Media.Imaging.BitmapImage()
    iconBitmap.SetSource(iconStream)
    playToDeviceIconImage.Source = iconBitmap

    playToDeviceFriendlyNameBlock.Text = e.FriendlyName
End Sub

Private Sub playToConnectionError(
    connection As Windows.Media.PlayTo.PlayToConnection,
    e As Windows.Media.PlayTo.PlayToConnectionErrorEventArgs)

    If e.Code = Windows.Media.PlayTo.PlayToConnectionError.DeviceError OrElse
        e.Code = Windows.Media.PlayTo.PlayToConnectionError.DeviceNotResponding Then

        messageBlock.Text &= "Error occurred. Disconnecting." & vbCrLf
    End If

    messageBlock.Text &= "Error: Message = " & e.Message.ToString() & vbCrLf
End Sub

Private Sub playToConnectionStageChanged(
    connection As Windows.Media.PlayTo.PlayToConnection,
    e As Windows.Media.PlayTo.PlayToConnectionStateChangedEventArgs)

    messageBlock.Text &= "StateChanged: PreviousState = " & e.PreviousState.ToString() & vbCrLf
    messageBlock.Text &= "StateChanged: CurrentState = " & e.CurrentState.ToString() & vbCrLf
End Sub

Private Sub playToConnectionTransferred(
    connection As Windows.Media.PlayTo.PlayToConnection,
    e As Windows.Media.PlayTo.PlayToConnectionTransferredEventArgs)

    messageBlock.Text &= "Transferred: PreviousSource = " & e.PreviousSource.ToString() & vbCrLf
    messageBlock.Text &= "Transferred: CurrentSource = " & e.CurrentSource.ToString() & vbCrLf
End Sub

注釈

アプリケーションで Play To を使用する方法の例については、「 PlayReady DRM」を参照してください。

プロパティ

FriendlyName	選択した Play To ソースの表示名を取得します。
Icon	選択した Play To ソースの表示アイコンを取得します。
SupportsAudio	選択した Play To ソースがオーディオをサポートしているかどうかを示す値を取得します。
SupportsImage	選択した Play To ソースがイメージの表示をサポートしているかどうかを示す値を取得します。
SupportsVideo	選択した Play To ソースがビデオをサポートしているかどうかを示す値を取得します。

こちらもご覧ください

• SourceSelected
• Play To のサンプル
• PlayToReceiver サンプル
• Media Server のサンプル