InstantMessagingMcuSession.BeginDialOut Method (String, AsyncCallback, Object)
Requests from the Instant Messaging MCU to initiate an Instant Messaging call to the supplied destination URI.
Namespace: Microsoft.Rtc.Collaboration
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginDialOut ( _
destinationUri As String, _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As InstantMessagingMcuSession
Dim destinationUri As String
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginDialOut(destinationUri, _
userCallback, state)
public IAsyncResult BeginDialOut(
string destinationUri,
AsyncCallback userCallback,
Object state
)
Parameters
- destinationUri
Type: System.String
The URI of the entity to call.
- userCallback
Type: System.AsyncCallback
The method to be called when the asynchronous operation is completed.
- state
Type: System.Object
A user-provided object that distinguishes this particular asynchronous operation from other asynchronous operations.
Return Value
Type: System.IAsyncResult
An IAsyncResult that references the asynchronous operation.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | Thrown when the parent ConferenceSession is not in a valid state or the conference does not support the corresponding MCU type. |
| ArgumentNullException | Thrown when the supplied destinationUri is null. |
| ArgumentException | Thrown when the supplied destinationUri is invalid. |
| RealTimeInvalidOperationException | Thrown when the parent ConferenceSession is reconnecting (FailureReason will be set to InvalidOperationReason.RetryableOperation). |
See Also
Reference
InstantMessagingMcuSession Class