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curs_print(3) Library calls curs_print(3) 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 re- sponsible for keeping the rate of writes to the printer below its con- tinuous throughput rate (typically about half of its nominal cps rat- ing). 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 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(3), 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(3) ncurses 6.4 2022-02-12 curs_print(3)