PlayToSourceRequest Classe

Definição

public ref class PlayToSourceRequest sealed

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

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

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

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

Public NotInheritable Class PlayToSourceRequest

Herança

Object Platform::Object IInspectable PlayToSourceRequest

Atributos

ContractVersionAttribute DeprecatedAttribute MarshalingBehaviorAttribute

Requisitos do Windows

Exemplos

// Play To Contract

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

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

private void sourceRequestHandler(
    Windows.Media.PlayTo.PlayToManager sender,
    Windows.Media.PlayTo.PlayToSourceRequestedEventArgs e)
{
    try
    {
        e.SourceRequest.SetSource(mediaElement.PlayToSource);
    }
    catch (Exception ex)
    {
        messageBlock.Text += "Exception encountered: " + ex.Message + "\n";
    }
}

' Play To Contract

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

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

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

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

Comentários

A classe PlayToSourceRequest representa uma solicitação do usuário para que a mídia de origem transmita para um destino Reproduzir para. Você usa a propriedade SourceRequest da classe PlayToSourceRequestedEventArgs para passar mídia do aplicativo para Reproduzir para durante o evento SourceRequested .

Você pode usar o método GetDeferral para criar um adiamento para quando quiser fazer uma chamada assíncrona para recuperar o elemento de mídia a ser transmitido. Em seguida, Reproduzir para aguardará que você forneça o elemento de mídia até marcar o adiamento como concluído.

Para obter um exemplo de como usar o Play To em um aplicativo, consulte DRM do PlayReady.

Propriedades

Métodos

Aplica-se a

Confira também

• Reproduzir para amostra
• Exemplo de PlayToReceiver
• Exemplo do Servidor de Mídia