void StartThread()
{
//Initialize COM object
lock (threadInitialized)
{
try
{
session = CreateComInstance();
encoder = GetEncoder(session);
}
catch (Exception)
{
connectException = true;
}
Monitor.Pulse(threadInitialized);
if (connectException) //!!Close connections?
{
ReleaseComInstance(session);
return;
}
}
//Use thread to gather data from COM object
DataLoop();
//!!End channels and queues
/*
for (int i = 0; i < channels.Length; i++)
{
queues[i].SignalExit();
queues.
}*/
session.CloseConnections();
ReleaseComInstance(session);
return;
}
TTLEncoder[] FindEncoders()
{
//Open connections to find all encoders connected to computer
//NOTE: If we get an exception "COM object that has been separated from its underlying RCW cannot be used." it might be thrown because session is being called on a different thread that has a different thread mode (STA/MTA)
// Also happens when you dispose the liveSessionTtl and then try calling this.
int scanned = 0;
int detected = 0;
session.OpenConnections(
(int)TTLLiveCtrlLib.TTLAPI_OPENCONNECTIONS_CMD_BITS.TTLAPI_OCCMD_AUTODETECT //This re-enumerates all encoder handles!
, 1000 //a value, in milliseconds, specifying the maximum expected interval between reads on any channel. This affects the amount of memory the API reserves as buffer space for each channel.
, ref scanned
, ref detected
);
//Put encoders into a nice array
int encoderCount = session.EncoderCount;
TTLEncoder[] encoders = new TTLEncoder[encoderCount];
for (int i = 0; i < encoderCount; i++)
{
encoders[i] = session.Encoder[i];
}
return encoders;
}
TTLChannel GetChannel(TTLEncoder encoder, Channel channel)
{
/*
//Set up all channels automatically
session.AutoSetupChannels();
if (session.ChannelCount <= 0)
{
throw new Exception("Could not find any channels.");
}
*/
//Get the first channel on the first encoder
int channel1Handle = -1; //passing in -1 means AddChannel() will just return the first available channel
//encoder.AddChannel(TTLAPI_CHANNELS.TTLAPI_CHANNEL_A, ref channel1Handle);
encoder.AddChannel((TTLAPI_CHANNELS)channel, ref channel1Handle);
TTLChannel ch1 = session.get_Channel(channel1Handle);
return ch1;
}
