static OpalMessageRef MySendCommand(OpalMessageRef command, string errorMessage) { OpalMessageRef response = new OpalMessageRef(); if (!context.SendMessage(command, response)) { return(null); } if (response.GetMessageType() != Opal_API.OpalMessageType.OpalIndCommandError) { return(response); } if (response.GetCommandError() == null || response.GetCommandError() == "\0") { Console.WriteLine("{0}.\n", errorMessage); } else { Console.WriteLine("{0}: {1}\n", errorMessage, response.GetCommandError()); } return(null); }