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* @Id: curs_printw.3x,v 1.12 2002/07/20 15:01:43 tom Exp @
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<H1>curs_printw 3x</H1>
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<PRE>
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</PRE>
<H2>NAME</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
</PRE>
<H2>SYNOPSIS</H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>int</STRONG> <STRONG>printw(char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
<STRONG>int</STRONG> <STRONG>wprintw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
<STRONG>int</STRONG> <STRONG>mvprintw(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
<STRONG>int</STRONG> <STRONG>mvwprintw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
<STRONG>int</STRONG> <STRONG>vwprintw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>va_list</STRONG> <STRONG>varglist);</STRONG>
<STRONG>int</STRONG> <STRONG>vw_printw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>va_list</STRONG> <STRONG>varglist);</STRONG>
</PRE>
<H2>DESCRIPTION</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><A HREF="printf.3S.html">printf(3S)</A></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 window.
The <STRONG>vwprintw</STRONG> and <STRONG>wv_printw</STRONG> routines are analogous to
<STRONG>vprintf</STRONG> [see <STRONG><A HREF="printf.3S.html">printf(3S)</A></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 defined in
<STRONG><stdarg.h></STRONG>.
</PRE>
<H2>RETURN VALUE</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 completion.
</PRE>
<H2>PORTABILITY</H2><PRE>
The XSI Curses standard, Issue 4 describes these func-
tions. 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. The Single Unix Specification, Ver-
sion 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>>.
</PRE>
<H2>SEE ALSO</H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="printf.3S.html">printf(3S)</A></STRONG>, <STRONG>vprintf(3S)</STRONG>
</PRE>
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