public Task <ReturnMessage> SendUiMessage(int messageId, string pData, int dataLength, string targetPhoneId)
{
Task <ReturnMessage> checkTask = _meetingManager.CheckMeetingServerStatus();
if (checkTask != null)
{
return(checkTask);
}
var tcs = new TaskCallback <ReturnMessage>("SendUIMessage");
if (_meetingManager.TaskCallbacks.ContainsKey(tcs.Name))
{
_meetingManager.TaskCallbacks.Remove(tcs.Name);
}
_meetingManager.TaskCallbacks.Add(tcs.Name, tcs);
int result = MeetingAgent.SendUIMessage(messageId, pData, dataLength, targetPhoneId);
if (result != 0)
{
return(Task.FromResult(MessageManager.FailedToSendUiMessage));
}
return(tcs.Task);
}