BackToBackCall.BeginEstablish(AsyncCallback, Object) Method

Reference

Definition

Namespace:: Microsoft.Rtc.Collaboration

Assembly:: Microsoft.Rtc.Collaboration.dll

Important

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Begins an asynchronous operation to establish the back-to-back call between two call legs.

public:
 IAsyncResult ^ BeginEstablish(AsyncCallback ^ userCallback, System::Object ^ state);

public IAsyncResult BeginEstablish (AsyncCallback userCallback, object state);

member this.BeginEstablish : AsyncCallback * obj -> IAsyncResult

Public Function BeginEstablish (userCallback As AsyncCallback, state As Object) As IAsyncResult

Parameters

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

InvalidOperationException

Thrown if BackToBack call is not in the Idle state when the method is called.

Applies to