curs_print(3x) — Linux manual page


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

       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

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:

            Capabilities for printer redirection do not exist.

            Couldn't allocate sufficient memory to buffer the printer

       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

BUGS         top

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

SEE ALSO         top


COLOPHON         top

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