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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | PORTABILITY | BUGS | SEE ALSO | COLOPHON |
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curs_print(3X) curs_print(3X)
mcprint - ship binary data to printer
#include <curses.h>
int mcprint(char *data, int len);
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.
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.
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.
Padding in the mc5p, mc4 and mc5 capabilities will not be
interpreted.
curses(3X)
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 2018-02-02. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2018-01-30.) 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)
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