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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 typically 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 associated with write(2) or one of the  fol-
     lowing:

     ENODEV
          Capabilities for printer redirection don't exist.

     ENOMEM
          Couldn't  allocate  sufficient  memory  to  buffer  the
          printer write.

          When mcprint succeeds, it returns the number of charac-
          ters actually sent to the printer.

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

SEE ALSO
     curses(3X)

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