The Get Queue Information routine provides a simplified interface
    to the $GETQUI system service. It provides queue, job, file,
    characteristic, and form information about a specified process.

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

    Format

      LIB$GETQUI  function-code [,item-code] [,search-number]

                  [,search-name] [,search-flags] [,resultant-value]

                  [,resultant-string] [,resultant-length]