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| <TITLE>curs_print 3x</TITLE> |
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| <H1>curs_print 3x</H1> |
| <HR> |
| <PRE> |
| <!-- Manpage converted by man2html 3.0.1 --> |
| <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> |
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| |
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| |
| </PRE> |
| <H2>NAME</H2><PRE> |
| <STRONG>mcprint</STRONG> - ship binary data to printer |
| |
| |
| </PRE> |
| <H2>SYNOPSIS</H2><PRE> |
| <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> |
| |
| <STRONG>int</STRONG> <STRONG>mcprint(char</STRONG> <STRONG>*data,</STRONG> <STRONG>int</STRONG> <STRONG>len);</STRONG> |
| |
| |
| </PRE> |
| <H2>DESCRIPTION</H2><PRE> |
| This function uses the <STRONG>mc5p</STRONG> or <STRONG>mc4</STRONG> and <STRONG>mc5</STRONG> capabilities, |
| if they are present, to ship given data to a printer |
| attached to the terminal. |
| |
| Note that the <STRONG>mcprint</STRONG> 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. |
| |
| |
| </PRE> |
| <H2>RETURN VALUE</H2><PRE> |
| The <STRONG>mcprint</STRONG> function returns <STRONG>ERR</STRONG> if the write operation |
| aborted for some reason. In this case, errno will contain |
| either an error associated with <STRONG>write(2)</STRONG> 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 <STRONG>mcprint</STRONG> succeeds, it returns the number of characters |
| actually sent to the printer. |
| |
| |
| </PRE> |
| <H2>PORTABILITY</H2><PRE> |
| The <STRONG>mcprint</STRONG> call was designed for <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>, and is not |
| found in SVr4 curses, 4.4BSD curses, or any other previous |
| version of curses. |
| |
| |
| </PRE> |
| <H2>BUGS</H2><PRE> |
| Padding in the <STRONG>mc5p</STRONG>, <STRONG>mc4</STRONG> and <STRONG>mc5</STRONG> capabilities will not be |
| interpreted. |
| |
| |
| </PRE> |
| <H2>SEE ALSO</H2><PRE> |
| <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> |
| |
| |
| |
| <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> |
| </PRE> |
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