ncurses 6.0 - patch 20150606
[ncurses.git] / doc / html / man / curs_printw.3x.html
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29   * @Id: curs_printw.3x,v 1.20 2010/12/04 18:40:45 tom Exp @
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31 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
32 <HTML>
33 <HEAD>
34 <meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
35 <meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
36 <TITLE>curs_printw 3x</TITLE>
37 <link rev=made href="mailto:bug-ncurses@gnu.org">
38 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
39 </HEAD>
40 <BODY>
41 <H1 class="no-header">curs_printw 3x</H1>
42 <PRE>
43 <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>                                         <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
44
45
46
47
48 </PRE>
49 <H2><a name="h2-NAME">NAME</a></H2><PRE>
50        <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG>, <STRONG>mvwprintw</STRONG>, <STRONG>vwprintw</STRONG>, <STRONG>vw_printw</STRONG>
51        - print formatted output in <STRONG>curses</STRONG> windows
52
53
54 </PRE>
55 <H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
56        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
57
58        <STRONG>int</STRONG> <STRONG>printw(const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
59        <STRONG>int</STRONG> <STRONG>wprintw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
60        <STRONG>int</STRONG> <STRONG>mvprintw(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
61        <STRONG>int</STRONG> <STRONG>mvwprintw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG>  <STRONG>*fmt,</STRONG>
62        <STRONG>...);</STRONG>
63        <STRONG>int</STRONG>  <STRONG>vwprintw(WINDOW</STRONG>  <STRONG>*win,</STRONG>  <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>va_list</STRONG> <STRONG>var-</STRONG>
64        <STRONG>glist);</STRONG>
65        <STRONG>int</STRONG> <STRONG>vw_printw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG>  <STRONG>va_list</STRONG>  <STRONG>var-</STRONG>
66        <STRONG>glist);</STRONG>
67
68
69 </PRE>
70 <H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
71        The  <STRONG>printw</STRONG>,  <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG> and <STRONG>mvwprintw</STRONG> routines are
72        analogous to  <STRONG>printf</STRONG>  [see  <STRONG>printf(3)</STRONG>].   In  effect,  the
73        string that would be output by <STRONG>printf</STRONG> is output instead as
74        though <STRONG>waddstr</STRONG> were used on the given window.
75
76        The <STRONG>vwprintw</STRONG>  and  <STRONG>wv_printw</STRONG>  routines  are  analogous  to
77        <STRONG>vprintf</STRONG>  [see  <STRONG>printf(3)</STRONG>]  and  perform  a <STRONG>wprintw</STRONG> using a
78        variable argument list.  The third argument is a  <STRONG>va_list</STRONG>,
79        a   pointer   to  a  list  of  arguments,  as  defined  in
80        <STRONG>&lt;stdarg.h&gt;</STRONG>.
81
82
83 </PRE>
84 <H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
85        Routines that return an integer return  <STRONG>ERR</STRONG>  upon  failure
86        and  <STRONG>OK</STRONG>  (SVr4 only specifies "an integer value other than
87        <STRONG>ERR</STRONG>") upon successful completion.
88
89        X/Open defines no error conditions.  In  this  implementa-
90        tion,  an  error  may  be  returned  if it cannot allocate
91        enough memory for the buffer used to format  the  results.
92        It will return an error if the window pointer is null.
93
94        Functions  with a "mv" prefix first perform a cursor move-
95        ment using <STRONG>wmove</STRONG>, and return an error if the  position  is
96        outside the window, or if the window pointer is null.
97
98
99 </PRE>
100 <H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
101        The  XSI  Curses  standard,  Issue 4 describes these func-
102        tions.  The function <STRONG>vwprintw</STRONG> is marked TO  BE  WITHDRAWN,
103        and  is  to  be replaced by a function <STRONG>vw_printw</STRONG> using the
104        <STRONG>&lt;stdarg.h&gt;</STRONG> interface.  The Single Unix Specification, Ver-
105        sion  2  states  that  <STRONG>vw_printw</STRONG>  is preferred to <STRONG>vwprintw</STRONG>
106        since the latter  requires  including  <STRONG>&lt;varargs.h&gt;</STRONG>,  which
107        cannot  be  used in the same file as <STRONG>&lt;stdarg.h&gt;</STRONG>.  This im-
108        plementation uses <STRONG>&lt;stdarg.h&gt;</STRONG> for both, because that header
109        is included in <STRONG>&lt;curses.h</STRONG>&gt;.
110
111
112 </PRE>
113 <H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
114        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG>printf(3)</STRONG>, <STRONG>vprintf(3)</STRONG>
115
116
117
118                                                         <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
119 </PRE>
120 <div class="nav">
121 <ul>
122 <li><a href="#h2-NAME">NAME</a></li>
123 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
124 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
125 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
126 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
127 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
128 </ul>
129 </div>
130 </BODY>
131 </HTML>