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| <H1 class="no-header">curs_print 3x</H1> |
| <PRE> |
| <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG> |
| |
| |
| |
| |
| </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE> |
| <STRONG>mcprint</STRONG> - ship binary data to printer |
| |
| |
| </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> |
| <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> |
| |
| <STRONG>int</STRONG> <STRONG>mcprint(char</STRONG> <STRONG>*</STRONG><EM>data</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>len</EM><STRONG>);</STRONG> |
| |
| |
| </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></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><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE> |
| The <STRONG>mcprint</STRONG> function returns <STRONG>ERR</STRONG> if the write operation aborted for |
| some reason. In this case, <STRONG>errno</STRONG> 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><a name="h2-PORTABILITY">PORTABILITY</a></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><a name="h2-BUGS">BUGS</a></H2><PRE> |
| Padding in the <STRONG>mc5p</STRONG>, <STRONG>mc4</STRONG> and <STRONG>mc5</STRONG> capabilities will not be interpreted. |
| |
| |
| </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></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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| <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li> |
| <li><a href="#h2-PORTABILITY">PORTABILITY</a></li> |
| <li><a href="#h2-BUGS">BUGS</a></li> |
| <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li> |
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