The Get Job/Process Information routine provides a simplified
    interface to the $GETJPI system service. It provides accounting,
    status, and identification information about a specified process.

    LIB$GETJPI obtains only one item of information in a single call.

    Format

      LIB$GETJPI  item-code [,process-id] [,process-name]

                  [,resultant-value] [,resultant-string]

                  [,resultant-length]