AudioVideoMcuSession.BeginModifyAttendanceAnnouncements Method (AttendanceAnnouncementsStatus, AsyncCallback, Object)
Enables or disables attendance announcements.
Namespace: Microsoft.Rtc.Collaboration.AudioVideo
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginModifyAttendanceAnnouncements ( _
status As AttendanceAnnouncementsStatus, _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As AudioVideoMcuSession
Dim status As AttendanceAnnouncementsStatus
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginModifyAttendanceAnnouncements(status, _
userCallback, state)
public IAsyncResult BeginModifyAttendanceAnnouncements(
AttendanceAnnouncementsStatus status,
AsyncCallback userCallback,
Object state
)
Parameters
- status
Type: Microsoft.Rtc.Collaboration.AttendanceAnnouncementsStatus
The new status for attendance announcements.
- 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 |
|---|---|
| ArgumentException | Thrown if set to Unsupported |
| InvalidOperationException | Thrown when the parent ConferenceSession is not in a valid state or the conference does not support the corresponding MCU type. |
| RealTimeInvalidOperationException | Thrown when the parent ConferenceSession is reconnecting (FailureReason will be set to InvalidOperationReason.RetryableOperation). |
Remarks
This method should be called by conference leaders only.
This operation is allowed by the server for conference leaders only.