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-<HTML>
-<HEAD>
-<TITLE>curs_scr_dump 3x</TITLE>
-<link rev=made href="mailto:bug-ncurses@gnu.org">
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-</HEAD>
-<BODY>
-<H1>curs_scr_dump 3x</H1>
-<HR>
-<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
-
-</PRE>
-<H2>NAME</H2><PRE>
- <STRONG>scr_dump</STRONG>, <STRONG>scr_restore</STRONG>, <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG> - read (write) a
- <STRONG>curses</STRONG> screen from (to) a file
-
-
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
-
- <STRONG>int</STRONG> <STRONG>scr_dump(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
- <STRONG>int</STRONG> <STRONG>scr_restore(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
- <STRONG>int</STRONG> <STRONG>scr_init(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
- <STRONG>int</STRONG> <STRONG>scr_set(const</STRONG> <STRONG>char</STRONG> <STRONG>*filename);</STRONG>
-
-
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- The <STRONG>scr_dump</STRONG> routine dumps the current contents of the
- virtual screen to the file <EM>filename</EM>.
-
- The <STRONG>scr_restore</STRONG> routine sets the virtual screen to the
- contents of <EM>filename</EM>, which must have been written using
- <STRONG>scr_dump</STRONG>. The next call to <STRONG>doupdate</STRONG> restores the screen
- to the way it looked in the dump file.
-
- The <STRONG>scr_init</STRONG> routine reads in the contents of <EM>filename</EM> and
- uses them to initialize the <STRONG>curses</STRONG> data structures about
- what the terminal currently has on its screen. If the
- data is determined to be valid, <STRONG>curses</STRONG> bases its next
- update of the screen on this information rather than
- clearing the screen and starting from scratch. <STRONG>scr_init</STRONG>
- is used after <STRONG>initscr</STRONG> or a <STRONG>system</STRONG> [see <STRONG>system</STRONG>(BA_LIB)]
- call to share the screen with another process which has
- done a <STRONG>scr_dump</STRONG> after its <STRONG>endwin</STRONG> call. The data is
- declared invalid if the terminfo capabilities <STRONG>rmcup</STRONG> and
- <STRONG>nrrmc</STRONG> exist; also if the terminal has been written to
- since the preceding <STRONG>scr_dump</STRONG> call.
-
- The <STRONG>scr_set</STRONG> routine is a combination of <STRONG>scr_restore</STRONG> and
- <STRONG>scr_init</STRONG>. It tells the program that the information in
- <EM>filename</EM> is what is currently on the screen, and also what
- the program wants on the screen. This can be thought of
- as a screen inheritance function.
-
- To read (write) a window from (to) a file, use the <STRONG>getwin</STRONG>
- and <STRONG>putwin</STRONG> routines [see <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>].
-
-
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- All routines return the integer <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG>
- upon success.
-
-
-</PRE>
-<H2>NOTES</H2><PRE>
- Note that <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG>, and <STRONG>scr_restore</STRONG> may be
- macros.
-
-
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- The XSI Curses standard, Issue 4, describes these func-
- tions (adding the const qualifiers).
- The SVr4 docs merely say under <STRONG>scr_init</STRONG> that the dump data
- is also considered invalid "if the time-stamp of the tty
- is old" but don't define "old".
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <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>,
- <STRONG><A HREF="curs_util.3x.html">curs_util(3x)</A></STRONG>, <STRONG><A HREF="system.3S.html">system(3S)</A></STRONG>
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-<ADDRESS>
-Man(1) output converted with
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