XPprintThere()
   This function will provide control over DOS' PRINT
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   Function:   XPprintThere()

               This function will provide control over DOS' PRINT
               command. The Expand Library supplies a complete interface
               between Clipper and PRINT.COM. Any function using
               any of these functions (described later) must make
               sure PRINT was succesfully loaded using this
               function.

   Syntax:     XPprintThere() --> lPrintInstalled

   Arguments:  None.

   Returns:    A logical, .t. if PRINT is installed, .f. if Not.
               If XPprintThere() returns .f., be sure not to use
               the other functions relating to PRINT.

   Usage:      if .not. XPprintThere()
                    ? 'PRINT is not installed, install it first.'
                    quit
               endif