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+<H1 class="no-header">curs_printw 3x</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG> <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
-</PRE>
-<H2>NAME</H2><PRE>
- <B>printw</B>, <B>wprintw</B>, <B>mvprintw</B>, <B>mvwprintw</B>, <B>vwprintw</B>, <B>vw_printw</B>
- - print formatted output in <B>curses</B> windows
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <B>#include</B> <B><curses.h></B>
- <B>int</B> <B>printw(char</B> <B>*fmt</B> [<B>,</B> <B>arg</B>] <B>...);</B>
- <B>int</B> <B>wprintw(WINDOW</B> <B>*win,</B> <B>char</B> <B>*fmt</B> [<B>,</B> <B>arg</B>] <B>...);</B>
- <B>int</B> <B>mvprintw(int</B> <B>y,</B> <B>int</B> <B>x,</B> <B>char</B> <B>*fmt</B> [<B>,</B> <B>arg</B>] <B>...);</B>
- <B>int</B> <B>mvwprintw(WINDOW</B> <B>*win,</B> <B>int</B> <B>y,</B> <B>int</B> <B>x,</B>
- <B>char</B> <B>*fmt</B> [<B>,</B> <B>arg]</B> ...);
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+ <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG>, <STRONG>mvwprintw</STRONG>, <STRONG>vwprintw</STRONG>, <STRONG>vw_printw</STRONG> - print
+ formatted output in <STRONG>curses</STRONG> windows
- <B>#include</B> <B><varargs.h></B>
- <B>int</B> <B>vwprintw(WINDOW</B> <B>*win,</B> <B>char</B> <B>*fmt,</B> <B>varglist);</B>
- <B>int</B> <B>vw_printw(WINDOW</B> <B>*win,</B> <B>char</B> <B>*fmt,</B> <B>varglist);</B>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+ <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- The <B>printw</B>, <B>wprintw</B>, <B>mvprintw</B> and <B>mvwprintw</B> routines are
- analogous to <B>printf</B> [see <B><A HREF="printf.3S.html">printf(3S)</A></B>]. In effect, the
- string that would be output by <B>printf</B> is output instead as
- though <B>waddstr</B> were used on the given window.
+ <STRONG>int</STRONG> <STRONG>printw(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
+ <STRONG>int</STRONG> <STRONG>wprintw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
+ <STRONG>int</STRONG> <STRONG>mvprintw(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
+ <STRONG>int</STRONG> <STRONG>mvwprintw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
+ <STRONG>int</STRONG> <STRONG>vw_printw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>va_list</STRONG> <EM>varglist</EM><STRONG>);</STRONG>
- The <B>vwprintw</B> routine is analogous to <B>vprintf</B> [see
- <B><A HREF="printf.3S.html">printf(3S)</A></B>] and performs a <B>wprintw</B> using a variable argu-
- ment list. The third argument is a <B>va_list</B>, a pointer to
- a list of arguments, as defined in <B><varargs.h></B>.
+ /* obsolete */
+ <STRONG>int</STRONG> <STRONG>vwprintw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>va_list</STRONG> <EM>varglist</EM><STRONG>);</STRONG>
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- Routines that return an integer return <B>ERR</B> upon failure
- and <B>OK</B> (SVr4 only specifies "an integer value other than
- <B>ERR</B>") upon successful completion.
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+ The <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG> and <STRONG>mvwprintw</STRONG> routines are analogous to
+ <STRONG>printf</STRONG> [see <STRONG>printf(3)</STRONG>]. In effect, the string that would be output by
+ <STRONG>printf</STRONG> is output instead as though <STRONG>waddstr</STRONG> were used on the given win-
+ dow.
+ The <STRONG>vwprintw</STRONG> and <STRONG>vw_printw</STRONG> routines are analogous to <STRONG>vprintf</STRONG> [see
+ <STRONG>printf(3)</STRONG>] and perform a <STRONG>wprintw</STRONG> using a variable argument list. The
+ third argument is a <STRONG>va_list</STRONG>, a pointer to a list of arguments, as de-
+ fined in <STRONG><stdarg.h></STRONG>.
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- The XSI Curses standard, Issue 4 describes these func-
- tions. The function <B>vwprintw</B> is marked TO BE WITHDRAWN,
- and is to be replaced by a function <B>vw_printw</B> using the
- <B><stdarg.h></B> interface.
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+ Routines that return an integer return <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG> (SVr4
+ only specifies "an integer value other than <STRONG>ERR</STRONG>") upon successful com-
+ pletion.
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <B><A HREF="ncurses.3x.html">curses(3x)</A></B>, <B><A HREF="printf.3S.html">printf(3S)</A></B>, <B>vprintf(3S)</B>
+ X/Open defines no error conditions. In this implementation, an error
+ may be returned if it cannot allocate enough memory for the buffer used
+ to format the results. It will return an error if the window pointer
+ is null.
+
+ Functions with a "mv" prefix first perform a cursor movement using
+ <STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
+ the window pointer is null.
+
+
+</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
+ While <STRONG>printw</STRONG> was implemented in 4BSD, it was unused until 4.2BSD (which
+ used it in games). That early version of curses was before the ANSI C
+ standard. It did not use <varargs.h>, though that was available. In
+ 1991 (a couple of years after SVr4 was generally available, and after
+ the C standard was published), other developers updated the library,
+ using <stdarg.h> internally in 4.4BSD curses. Even with this improve-
+ ment, BSD curses did not use function prototypes (or even declare func-
+ tions) in the <curses.h> header until 1992.
+
+ SVr2 documented <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG> tersely as "printf on <EM>stdscr</EM>" and
+ tersely as "printf on <EM>win</EM>", respectively.
+ SVr3 added <STRONG>mvprintw</STRONG>, and <STRONG>mvwprintw</STRONG>, with a three-line summary saying
+ that they were analogous to <STRONG>printf(3)</STRONG>, explaining that the string which
+ would be output from <STRONG>printf(3)</STRONG> would instead be output using <STRONG>waddstr</STRONG> on
+ the given window. SVr3 also added <STRONG>vwprintw</STRONG>, saying that the third pa-
+ rameter is a <STRONG>va_list</STRONG>, defined in <varargs.h>, and referring the reader
+ to the manual pages for <EM>varargs</EM> and <STRONG>vprintf</STRONG> for detailed descriptions.
+ SVr4 added no new variations of <STRONG>printw</STRONG>, but provided for using
+ <varargs.h> or <stdarg.h> to define the <STRONG>va_list</STRONG> type.
+ X/Open Curses added <STRONG>vw_printw</STRONG> to replace <STRONG>vwprintw</STRONG>, stating that its
+ <STRONG>va_list</STRONG> definition requires <stdarg.h>.
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ In this implementation, <STRONG>vw_printw</STRONG> and <STRONG>vwprintw</STRONG> are equivalent, to sup-
+ port legacy applications. However, the latter (<STRONG>vwprintw</STRONG>) is obsolete:
+ <STRONG>o</STRONG> The XSI Curses standard, Issue 4 described these functions. The
+ function <STRONG>vwprintw</STRONG> is marked TO BE WITHDRAWN, and is to be replaced
+ by a function <STRONG>vw_printw</STRONG> using the <STRONG><stdarg.h></STRONG> interface.
+ <STRONG>o</STRONG> The Single Unix Specification, Version 2 states that <STRONG>vw_printw</STRONG> is
+ preferred to <STRONG>vwprintw</STRONG> since the latter requires including
+ <STRONG><varargs.h></STRONG>, which cannot be used in the same file as <STRONG><stdarg.h></STRONG>.
+ This implementation uses <STRONG><stdarg.h></STRONG> for both, because that header
+ is included in <STRONG><curses.h</STRONG>>.
+ <STRONG>o</STRONG> X/Open Curses, Issue 5 (December 2007) marked <STRONG>vwprintw</STRONG> (along with
+ <STRONG>vwscanw</STRONG> and the termcap interface) as withdrawn.
+</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_addstr.3x.html">curs_addstr(3x)</A></STRONG>, <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>, <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>,
+ <STRONG>printf(3)</STRONG>, <STRONG>vprintf(3)</STRONG>.
+ <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
</PRE>
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+<ul>
+<li><a href="#h2-NAME">NAME</a></li>
+<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
+<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
+<li><a href="#h2-HISTORY">HISTORY</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
+</ul>
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