Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
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 re-
       sponsible for keeping the rate of writes	to the printer below its  con-
       tinuous	throughput  rate (typically about half of its nominal cps rat-
       ing).  Dot-matrix printers and 6-page-per-minute	lasers	can  typically
       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 do not	exist.

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

       When mcprint succeeds, it returns the  number  of  characters  actually
       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)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | PORTABILITY | BUGS | SEE ALSO

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=mcprint&sektion=3&manpath=FreeBSD+12.0-RELEASE+and+Ports>

home | help