mcprint

curs_print(3X)						       curs_print(3X)



NAME
       mcprint - ship binary data to printer

SYNOPSIS
       #include <curses.h>

       int mcprint(char *data, int len);

DESCRIPTION
       This  function  uses the mc5p or mc4 and mc5 capabilities, if they are
       present, to ship given data to a printer attached to the terminal.

       Note that the mcprint code has no way to	 do  flow  control  with  the
       printer	or  to	know  how much buffering it has.  Your application is
       responsible for keeping the rate of writes to the  printer  below  its
       continuous  throughput  rate  (typically about half of its nominal cps
       rating).	 Dot-matrix printers and 6-page-per-minute lasers  can	typi-
       cally  handle  80cps, so a good conservative rule of thumb is to sleep
       for a second after shipping each 80-character line.


RETURN VALUE
       The mcprint function returns ERR if the write  operation	 aborted  for
       some reason.  In this case, errno will contain either an error associ-
       ated with write(2) or one of the following:

       ENODEV
	    Capabilities for printer redirection don’t exist.

       ENOMEM
	    Couldn’t allocate sufficient memory to buffer the printer  write.

	    When  mcprint succeeds, it returns the number of characters actu-
	    ally sent to the printer.

PORTABILITY
       The mcprint call was designed for ncurses(3X), and  is  not  found  in
       SVr4 curses, 4.4BSD curses, or any other previous version of curses.

BUGS
       Padding in the mc5p, mc4 and mc5 capabilities will not be interpreted.

SEE ALSO
       curses(3X)



							       curs_print(3X)