Used for retrieving data records from the controller.
async | False to user QR, True to use DR. |
Wrapper around gclib GRecord(), http://www.galil.com/sw/pub/all/doc/gclib/html/gclib_8h.html#a1f39cd57dcfa55d065c972a020b1f8ee To use async, -s ALL or -s DR must be specified in the address argument of GOpen(), and the records must be started via DR or RecordRate().
System.Exception | Will throw an exception if anything other than G_NO_ERROR is received from gclib. |