release/src/router/libncurses/doc/html/man/curs_print.3x.html

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  30   * @Id: curs_print.3x,v 1.10 2010/12/04 18:40:45 tom Exp @
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  34 <TITLE>curs_print 3x</TITLE>
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  39 <H1>curs_print 3x</H1>
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  41 <PRE>
  42 <!-- Manpage converted by man2html 3.0.1 -->
  43 <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG>                                           <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG>
  44
  45
  46
  47
  48 </PRE>
  49 <H2>NAME</H2><PRE>
  50        <STRONG>mcprint</STRONG> - ship binary data to printer
  51
  52
  53 </PRE>
  54 <H2>SYNOPSIS</H2><PRE>
  55        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  56
  57        <STRONG>int</STRONG> <STRONG>mcprint(char</STRONG> <STRONG>*data,</STRONG> <STRONG>int</STRONG> <STRONG>len);</STRONG>
  58
  59
  60 </PRE>
  61 <H2>DESCRIPTION</H2><PRE>
  62        This  function  uses the <STRONG>mc5p</STRONG> or <STRONG>mc4</STRONG> and <STRONG>mc5</STRONG> capabilities,
  63        if they are present, to  ship  given  data  to  a  printer
  64        attached to the terminal.
  65
  66        Note  that  the <STRONG>mcprint</STRONG> code has no way to do flow control
  67        with the printer or to know how  much  buffering  it  has.
  68        Your  application  is  responsible for keeping the rate of
  69        writes to the printer below its continuous throughput rate
  70        (typically  about  half  of its nominal cps rating).  Dot-
  71        matrix printers and 6-page-per-minute lasers can typically
  72        handle  80cps,  so a good conservative rule of thumb is to
  73        sleep for a second after shipping each 80-character line.
  74
  75
  76 </PRE>
  77 <H2>RETURN VALUE</H2><PRE>
  78        The <STRONG>mcprint</STRONG> function returns <STRONG>ERR</STRONG> if  the  write  operation
  79        aborted for some reason.  In this case, errno will contain
  80        either an error associated with <STRONG>write(2)</STRONG>  or  one  of  the
  81        following:
  82
  83        ENODEV
  84             Capabilities for printer redirection do not exist.
  85
  86        ENOMEM
  87             Couldn't  allocate  sufficient  memory  to buffer the
  88             printer write.
  89
  90        When <STRONG>mcprint</STRONG> succeeds, it returns the number of characters
  91        actually sent to the printer.
  92
  93
  94 </PRE>
  95 <H2>PORTABILITY</H2><PRE>
  96        The  <STRONG>mcprint</STRONG> call was designed for <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>, and is not
  97        found in SVr4 curses, 4.4BSD curses, or any other previous
  98        version of curses.
  99
 100
 101 </PRE>
 102 <H2>BUGS</H2><PRE>
 103        Padding  in the <STRONG>mc5p</STRONG>, <STRONG>mc4</STRONG> and <STRONG>mc5</STRONG> capabilities will not be
 104        interpreted.
 105
 106
 107 </PRE>
 108 <H2>SEE ALSO</H2><PRE>
 109        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
 110
 111
 112
 113                                                          <STRONG><A HREF="curs_print.3x.html">curs_print(3x)</A></STRONG>
 114 </PRE>
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