AudioVideoMcuSession.BeginUnmute Method (ParticipantEndpoint, UnmuteOptions, AsyncCallback, Object)
Enables the audio coming from the supplied participant endpoint to be sent to the conference.
Namespace: Microsoft.Rtc.Collaboration.AudioVideo
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginUnmute ( _
endpoint As ParticipantEndpoint, _
options As UnmuteOptions, _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As AudioVideoMcuSession
Dim endpoint As ParticipantEndpoint
Dim options As UnmuteOptions
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginUnmute(endpoint, _
options, userCallback, state)
public IAsyncResult BeginUnmute(
ParticipantEndpoint endpoint,
UnmuteOptions options,
AsyncCallback userCallback,
Object state
)
Parameters
- endpoint
Type: Microsoft.Rtc.Collaboration.ParticipantEndpoint
The endpoint of which audio should be affected.
- options
Type: Microsoft.Rtc.Collaboration.AudioVideo.UnmuteOptions
Options to customize the un-mute operation. Could be set to null.
- 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. Also thrown if the supplied endpoint is not in the MCU or has no audio to mute. |
| ArgumentNullException | Thrown when the supplied endpoint is null. |
| RealTimeInvalidOperationException | Thrown when the parent ConferenceSession is reconnecting (FailureReason will be set to InvalidOperationReason.RetryableOperation). |
Remarks
This operation is allowed by the server for conference leaders only.