Hi Grant,

i don’t want to work with unconfigured device, i just want to know whether the device that is currently connected to the computer is connected or not.

why do i want that?
because my application uses the ET4C and will be used in several places, i need to be sure that when my user plugs a new ET device (form whatever reason..) i need to send him to config and calibrate.
currently, when i plug a device that is not configured to the computer, i pass all the setup process with no problem, so programmatically i think i’m fine and online with the ET4C device – but yet, i get no results.

so therefore, i wish that i could know whether i need to send the user to re/config, because this is a black hole for me.

and yet, i have no intentions to connect more than 1 device to the same machine.
working with just 1 is already complicated 😛

thanks!

For example, if a tracker is taken from one system and plugged into another..can the SDK somehow detect that the connected eye tracker is not yet configured?

exactly!

thanks a lot!
waiting for a positive response eagerly 😉

hi, as promised, i tried working with the READINESS thing, and it worked nice.
but.. sometimes after a while when i try recheck the “readiness”, and although i see the red lights on the ET and even see the tray icon functions well – i get a return code of: “tobii_error_t.TOBII_ERROR_INTERNAL”
can u suggest why?

here is the piece of code:

        private bool IsETReady
        {
            get
            {
                List<tobii_enumerated_device_t> devices = new List<tobii_enumerated_device_t>();
                tobii_error_t rc = Interop.tobii_enumerate_devices(_tobii_strem_engine, out devices);

                if (rc == tobii_error_t.TOBII_ERROR_NO_ERROR)
                {
                    if (devices.Count == 0)
                    {
                        logger.Debug("ET Not Ready - Couldn't Find Connected Device");
                        return false;
                    }
                    else if (devices[0].readiness != tobii_device_readiness_t.TOBII_DEVICE_READINESS_READY)
                    {
                        logger.Error(string.Format("ET Readiness Check Failed: {0}", enumName(rc)));
                        return false;
                    }
                    else
                    {
                        logger.Debug("ET is Ready!");
                        return true;
                    }
                }
                else
                {
                    logger.Error(string.Format("ET Readiness Check Failed: {0} - Restarting Service", convertTobiiError(rc)));
                    return false;
                }
            }
        }

i can’t edit the previous reply, so i write another one..

it seems like the engine is disconnected.
after receiving this TOBII_ERROR_INTERNAL, i perform tobii_engine_reconnect and then tobii_enumerate_devices works fine..
and the rest is history 🙂

it did. but i bypassed it by “reconnecting” to stream engine