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32<HTML>
33<HEAD>
34<TITLE>curs_print 3x</TITLE>
35<link rev=made href="mailto:bug-ncurses@gnu.org">
36<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
37</HEAD>
38<BODY>
39<H1>curs_print 3x</H1>
40<HR>
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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