BeginService Method (RealTimeAddress, AsyncCallback, Object)
Initiates a service request.
Namespace: Microsoft.Rtc.Signaling
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginService ( _
target As RealTimeAddress, _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As SipServiceRequest
Dim target As RealTimeAddress
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginService(target, _
userCallback, state)
public IAsyncResult BeginService(
RealTimeAddress target,
AsyncCallback userCallback,
Object state
)
Parameters
- target
Type: Microsoft.Rtc.Signaling..::..RealTimeAddress
The address to be used in "To" header of the service request.
- userCallback
Type: System..::..AsyncCallback
The callback to be invoked when the Service operation is complete.
- state
Type: System..::..Object
The state to be passed back to the callback.
Return Value
Type: System..::..IAsyncResult
An [IAsyncResult] that references this operation.