MediaSourceAppServiceConnection.InitializeMediaStreamSourceRequested Kejadian

Definisi

Ruang nama:

Windows.Media.Core

Dimunculkan oleh sistem untuk meminta inisialisasi MediaStreamSource baru.

// Register
event_token InitializeMediaStreamSourceRequested(TypedEventHandler<MediaSourceAppServiceConnection, InitializeMediaStreamSourceRequestedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
MediaSourceAppServiceConnection::InitializeMediaStreamSourceRequested_revoker InitializeMediaStreamSourceRequested(auto_revoke_t, TypedEventHandler<MediaSourceAppServiceConnection, InitializeMediaStreamSourceRequestedEventArgs const&> const& handler) const;

public event TypedEventHandler<MediaSourceAppServiceConnection,InitializeMediaStreamSourceRequestedEventArgs> InitializeMediaStreamSourceRequested;

function onInitializeMediaStreamSourceRequested(eventArgs) { /* Your code */ }
mediaSourceAppServiceConnection.addEventListener("initializemediastreamsourcerequested", onInitializeMediaStreamSourceRequested);
mediaSourceAppServiceConnection.removeEventListener("initializemediastreamsourcerequested", onInitializeMediaStreamSourceRequested);
- or -
mediaSourceAppServiceConnection.oninitializemediastreamsourcerequested = onInitializeMediaStreamSourceRequested;

Public Custom Event InitializeMediaStreamSourceRequested As TypedEventHandler(Of MediaSourceAppServiceConnection, InitializeMediaStreamSourceRequestedEventArgs) 

Jenis Acara

TypedEventHandler<MediaSourceAppServiceConnection,InitializeMediaStreamSourceRequestedEventArgs>

Keterangan

Setelah mendaftarkan handler untuk InitializeMediaStreamSourceRequestedEventArgs, panggil Mulai untuk memberi tahu sistem bahwa layanan aplikasi siap menangani permintaan.

Dengan objek InitializeMediaStreamSourceRequestedEventArgs, sistem meneruskanIRandomAccessStream dan objek MediaStreamSource yang tidak diinisialisasi ke dalam penanganan aktivitas InitializeMediaStreamSourceRequested . Layanan aplikasi harus mengurai IRandomAccessStream untuk membuat IMediaStreamDescriptor. Jika format aliran yang diminta didukung, maka layanan aplikasi dapat menginisialisasi MediaStreamSource dan mulai menyediakan sampel.