BeginRegister Method (AsyncCallback, Object)
Starts an asynchronous Register operation for the current endpoint.
Namespace: Microsoft.Rtc.Signaling
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginRegister ( _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As SipEndpoint
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginRegister(userCallback, _
state)
public IAsyncResult BeginRegister(
AsyncCallback userCallback,
Object state
)
Parameters
- userCallback
Type: System..::..AsyncCallback
The method to call when the Register operation has completed.
- state
Type: System..::..Object
The application state.
Return Value
Type: System..::..IAsyncResult
An [IAsyncResult] state object representing the operation.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | Thrown when the method is not called in the Unregistered state, or the endpoint is terminated. |