Expand description
Ship binary data to printer. Returns the number of characters actually sent to the printer.
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.