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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
⟨https://github.com/mirror/ncurses.git⟩ on 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2023-03-12.) 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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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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