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127 lines
6.9 KiB
HTML
127 lines
6.9 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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****************************************************************************
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* Copyright (c) 1998-2006,2010 Free Software Foundation, Inc. *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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****************************************************************************
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* @Id: curs_printw.3x,v 1.20 2010/12/04 18:40:45 tom Exp @
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-->
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<HTML>
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<HEAD>
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<TITLE>curs_printw 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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</HEAD>
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<BODY>
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<H1>curs_printw 3x</H1>
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<HR>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG> <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
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</PRE>
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<H2>NAME</H2><PRE>
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<STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG>, <STRONG>mvwprintw</STRONG>, <STRONG>vwprintw</STRONG>, <STRONG>vw_printw</STRONG>
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- print formatted output in <STRONG>curses</STRONG> windows
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</PRE>
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<H2>SYNOPSIS</H2><PRE>
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<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
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<STRONG>int</STRONG> <STRONG>printw(const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
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<STRONG>int</STRONG> <STRONG>wprintw(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*fmt,</STRONG> <STRONG>...);</STRONG>
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<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>
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<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>
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<STRONG>...);</STRONG>
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<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>
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<STRONG>glist);</STRONG>
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<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>
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<STRONG>glist);</STRONG>
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG> and <STRONG>mvwprintw</STRONG> routines are
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analogous to <STRONG>printf</STRONG> [see <STRONG>printf(3)</STRONG>]. In effect, the
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string that would be output by <STRONG>printf</STRONG> is output instead as
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though <STRONG>waddstr</STRONG> were used on the given window.
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The <STRONG>vwprintw</STRONG> and <STRONG>wv_printw</STRONG> routines are analogous to
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<STRONG>vprintf</STRONG> [see <STRONG>printf(3)</STRONG>] and perform a <STRONG>wprintw</STRONG> using a
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variable argument list. The third argument is a <STRONG>va_list</STRONG>,
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a pointer to a list of arguments, as defined in
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<STRONG><stdarg.h></STRONG>.
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</PRE>
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<H2>RETURN VALUE</H2><PRE>
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Routines that return an integer return <STRONG>ERR</STRONG> upon failure
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and <STRONG>OK</STRONG> (SVr4 only specifies "an integer value other than
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<STRONG>ERR</STRONG>") upon successful completion.
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X/Open defines no error conditions. In this implementa-
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tion, an error may be returned if it cannot allocate
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enough memory for the buffer used to format the results.
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It will return an error if the window pointer is null.
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Functions with a "mv" prefix first perform a cursor move-
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ment using <STRONG>wmove</STRONG>, and return an error if the position is
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outside the window, or if the window pointer is null.
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</PRE>
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<H2>PORTABILITY</H2><PRE>
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The XSI Curses standard, Issue 4 describes these func-
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tions. The function <STRONG>vwprintw</STRONG> is marked TO BE WITHDRAWN,
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and is to be replaced by a function <STRONG>vw_printw</STRONG> using the
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<STRONG><stdarg.h></STRONG> interface. The Single Unix Specification, Ver-
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sion 2 states that <STRONG>vw_printw</STRONG> is preferred to <STRONG>vwprintw</STRONG>
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since the latter requires including <STRONG><varargs.h></STRONG>, which
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cannot be used in the same file as <STRONG><stdarg.h></STRONG>. This im-
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plementation uses <STRONG><stdarg.h></STRONG> for both, because that header
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is included in <STRONG><curses.h</STRONG>>.
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG>printf(3)</STRONG>, <STRONG>vprintf(3)</STRONG>
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<STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
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</PRE>
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<HR>
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<ADDRESS>
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Man(1) output converted with
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<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
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</ADDRESS>
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</BODY>
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</HTML>
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