Function:   PrintFiles()

               This function returns the name(s) of the file(s)
               currently in the queue in an Array.
               A call to this function suspends the PRINT
               operation, see PrintResume() on how to restart the
               Printing.

               Formerly, this function was Aprint() (in the Clipper'87
               version). But This has been modified to PrintFiles() to
               make better use of the Array possibilities now offered
               in Clipper 5.01. So you will have to Adapt references
               to Aprint() in your old sources if you were using previous
               version of the Expand library. Anyway, this way of doing it
               is much nicer.

   Syntax:     PrintFiles() --> aList

   Arguments:  None.

   Returns:    an Array filled with File names, currently in the queue.
               The first in the list was currently being printed. Use
               PrintResume() to Resume Printing.
               If Print is not installed, PrintFiles() returns NIL. If the
               queue is empty, PrintFiles() returns a Zero Array ({}).

   Usage:      * - Get the Queue in an Array..
               aList := PrintFiles()