Unlike the LabJackUD driver, the LabJackM driver uses standard DAQFactory error handling. When the driver has an error, it throws the error which then can be caught using a try/catch() block. Please see section 5.19 for more detail. For example, the LJM_eStreamStart() can generate an error in a number of conditions, such as setting too high of a scan rate. If you don't add any error handling, the script will just exit and the error will display in the Command / Alert window. But often it is better to catch the error in script so you can do something else about it. For example:
try
LJM_eStreamStart("ANY", {"AIN0", "AIN1"}, scanRate, scansPerRead, 1)
catch()
System.MessageBox("Error starting stream: " + strLastError)
endcatch
Note that all errors, other than loading the driver itself, start with "LabJackM:".
