curs_print(3x) — Linux manual page

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

curs_print(3X)                                            curs_print(3X)

NAME         top

       mcprint - ship binary data to printer

SYNOPSIS         top

       #include <curses.h>

       int mcprint(char *data, int len);

DESCRIPTION         top

       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 typically handle 80cps, so a good conservative rule of
       thumb is to sleep for a second after shipping each 80-character
       line.

RETURN VALUE         top

       The mcprint function returns ERR if the write operation aborted
       for some reason.  In this case, errno will contain either an
       error associated 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         top

       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         top

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

SEE ALSO         top

       curses(3X)

COLOPHON         top

       This page is part of the ncurses (new curses) project.
       Information about the project can be found at 
       ⟨https://www.gnu.org/software/ncurses/ncurses.html⟩.  If you have
       a bug report for this manual page, send it to
       bug-ncurses-request@gnu.org.  This page was obtained from the
       project's upstream Git mirror of the CVS repository
       ⟨git://ncurses.scripts.mit.edu/ncurses.git⟩ on 2021-04-01.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2021-03-28.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

                                                          curs_print(3X)