Call.BeginAccept Method

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

public IAsyncResult BeginAccept (AsyncCallback userCallback, object state);

member this.BeginAccept : AsyncCallback * obj -> IAsyncResult

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

Parameters

Returns

An IAsyncResult that references the asynchronous operation.

Exceptions

Examples

This example demonstrates how to accept an incoming call. This example assumes that the endpoint has already been established and the delegate to receive calls has been registered.

C# Receiving and accepting an incoming call

// Register for incoming calls on receiving endpoint.
endpoint2.RegisterForIncomingCall<InstantMessagingCall>(
    this.IncomingCallReceived);


private void IncomingCallReceived(
    object sender,
    CallReceivedEventArgs<InstantMessagingCall> e)
{

    try
    {
        e.Call.InstantMessagingFlowConfigurationRequested += this.FlowConfigurationRequested;

        // Accept the call. This will cause FlowConfigurationRequested to be raised.
        e.Call.BeginAccept(this.AcceptCompleted, e.Call);
    }
    catch (InvalidOperationException)
    {
        // Call got disconnected before it could be accepted
        // TODO: Replace with exception handling code.
        Console.WriteLine("Call was disconnected.");
    }
}

private void AcceptCompleted(IAsyncResult result)
{
    try
    {
        InstantMessagingCall call = result.AsyncState as InstantMessagingCall;

        call.EndAccept(result);
    }
    catch (RealTimeException exception)
    {
        // TODO: Replace with exception handling code.
        Console.WriteLine("Call accept failed: {0}", exception.Message);
    }
    finally
    {
        // TODO: Add clean up code here.
    }

}

Remarks

The state of the call can change if the remote party decides to cancel the call.

public:
 IAsyncResult ^ BeginAccept(Microsoft::Rtc::Collaboration::CallAcceptOptions ^ options, AsyncCallback ^ userCallback, System::Object ^ state);

public IAsyncResult BeginAccept (Microsoft.Rtc.Collaboration.CallAcceptOptions options, AsyncCallback userCallback, object state);

member this.BeginAccept : Microsoft.Rtc.Collaboration.CallAcceptOptions * AsyncCallback * obj -> IAsyncResult

Public Function BeginAccept (options As CallAcceptOptions, userCallback As AsyncCallback, state As Object) As IAsyncResult

Parameters

Returns

An IAsyncResult that references the asynchronous operation.

Exceptions