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print(3NCURSES) print(3NCURSES)
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 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(3NCURSES), 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
ncurses(3NCURSES)
print(3NCURSES)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:37:13 GMT 2007
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