Command languages (such as ICL or Tcl/Tk) control Adam tasks by sending them Adam messages and responding to any messages from the task The messages from the task request such things as new values for parameters or contain text to displayed to the user. This section describes what sort of messages tasks respond to and what replies can be expected; it concentrates on data reduction tasks and ignores some of the more complicated behavour of instrument control tasks.
STARTCL --- Starlink Extensions to Tcl & Tk