/// <summary>
/// 消息是否已经被查看
/// </summary>
/// <param name="msg"></param>
/// <param name="jsonExtension"></param>
/// <returns></returns>
public static bool IsMessageBeReaded(NIMIMMessage msg, string jsonExtension = null)
{
System.Diagnostics.Debug.Assert(msg != null && !string.IsNullOrEmpty(msg.ReceiverID));
var msgJson = msg.Serialize();
return(MsglogNativeMethods.nim_msglog_query_be_readed(msgJson, jsonExtension));
}