MediaSource.BeginPrepareSource Method

Reference

Definition

Namespace:: Microsoft.Rtc.Collaboration.AudioVideo

Assembly:: Microsoft.Rtc.Collaboration.dll

Important

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Prepares the media source.

public:
 IAsyncResult ^ BeginPrepareSource(Microsoft::Rtc::Collaboration::AudioVideo::MediaSourceOpenMode mode, AsyncCallback ^ userCallback, System::Object ^ state);

public IAsyncResult BeginPrepareSource (Microsoft.Rtc.Collaboration.AudioVideo.MediaSourceOpenMode mode, AsyncCallback userCallback, object state);

member this.BeginPrepareSource : Microsoft.Rtc.Collaboration.AudioVideo.MediaSourceOpenMode * AsyncCallback * obj -> IAsyncResult

Public Function BeginPrepareSource (mode As MediaSourceOpenMode, userCallback As AsyncCallback, state As Object) As IAsyncResult

Parameters

mode: MediaSourceOpenMode

The open mode.

userCallback: AsyncCallback

The method to be called when the asynchronous operation is completed.

state: Object

A user-provided object that distinguishes this particular asynchronous operation from other asynchronous operations.

Returns

IAsyncResult

An IAsyncResult that references the asynchronous operation.

Exceptions

ArgumentOutOfRangeException

Thrown when the mode argument is not a value in the MediaSourceOpenMode enumerated type.

InvalidOperationException

Thrown when the audio/video platform is not initialized.

Remarks

An application must call this method before any Player begins playing a MediaSource. The application must also call EndPrepareSource.

Applies to

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