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027d0c57c4
+ amend change to ".pc" files to only use the extra loader flags which may have rpath options (report by Sven Joachim, cf: 20150502). + change versioning for dpkg's in test-packages for Ada95 and ncurses-examples for consistency with Debian, to work with package updates. + regenerate html manpages. + clarify handling of carriage return in waddch manual page; it was discussed only in the portability section (prompted by comment on Stack Overflow forum):
144 lines
7.2 KiB
HTML
144 lines
7.2 KiB
HTML
<!--
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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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* @Id: curs_scr_dump.3x,v 1.9 2010/12/04 18:40:45 tom Exp @
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-->
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<HTML>
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<HEAD>
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
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<TITLE>curs_scr_dump 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 class="no-header">curs_scr_dump 3x</H1>
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<PRE>
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<STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG> <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>
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</PRE>
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<H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>scr_dump</STRONG>, <STRONG>scr_restore</STRONG>, <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG> - read (write) a
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<STRONG>curses</STRONG> screen from (to) a file
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</PRE>
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<H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
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<STRONG>int</STRONG> <STRONG>scr_dump(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
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<STRONG>int</STRONG> <STRONG>scr_restore(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
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<STRONG>int</STRONG> <STRONG>scr_init(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
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<STRONG>int</STRONG> <STRONG>scr_set(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
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</PRE>
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<H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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The <STRONG>scr_dump</STRONG> routine dumps the current contents of the
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virtual screen to the file <EM>filename</EM>.
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The <STRONG>scr_restore</STRONG> routine sets the virtual screen to the
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contents of <EM>filename</EM>, which must have been written using
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<STRONG>scr_dump</STRONG>. The next call to <STRONG>doupdate</STRONG> restores the screen
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to the way it looked in the dump file.
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The <STRONG>scr_init</STRONG> routine reads in the contents of <EM>filename</EM> and
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uses them to initialize the <STRONG>curses</STRONG> data structures about
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what the terminal currently has on its screen. If the da-
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ta is determined to be valid, <STRONG>curses</STRONG> bases its next update
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of the screen on this information rather than clearing the
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screen and starting from scratch. <STRONG>scr_init</STRONG> is used after
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<STRONG>initscr</STRONG> or a <STRONG>system</STRONG> call to share the screen with another
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process which has done a <STRONG>scr_dump</STRONG> after its <STRONG>endwin</STRONG> call.
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The data is declared invalid if the terminfo capabilities
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<STRONG>rmcup</STRONG> and <STRONG>nrrmc</STRONG> exist; also if the terminal has been writ-
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ten to since the preceding <STRONG>scr_dump</STRONG> call.
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The <STRONG>scr_set</STRONG> routine is a combination of <STRONG>scr_restore</STRONG> and
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<STRONG>scr_init</STRONG>. It tells the program that the information in
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<EM>filename</EM> is what is currently on the screen, and also what
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the program wants on the screen. This can be thought of
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as a screen inheritance function.
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To read (write) a window from (to) a file, use the <STRONG>getwin</STRONG>
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and <STRONG>putwin</STRONG> routines [see <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>].
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</PRE>
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<H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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All routines return the integer <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG>
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upon success.
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X/Open defines no error conditions. In this implementa-
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tion, each will return an error if the file cannot be
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opened.
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</PRE>
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<H2><a name="h2-NOTES">NOTES</a></H2><PRE>
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Note that <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG>, and <STRONG>scr_restore</STRONG> may be
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macros.
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</PRE>
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<H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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The XSI Curses standard, Issue 4, describes these func-
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tions (adding the const qualifiers).
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The SVr4 docs merely say under <STRONG>scr_init</STRONG> that the dump data
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is also considered invalid "if the time-stamp of the tty
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is old" but do not define "old".
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</PRE>
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<H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>,
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<STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>, <STRONG>system(3)</STRONG>
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<STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG>
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</PRE>
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<div class="nav">
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<ul>
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<li><a href="#h2-NAME">NAME</a></li>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
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<li><a href="#h2-NOTES">NOTES</a></li>
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<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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</ul>
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</div>
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</BODY>
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</HTML>
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