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diff --git a/doc/html/man/curs_scr_dump.3x.html b/doc/html/man/curs_scr_dump.3x.html index 2c3efab46df7..f1759cb3b700 100644 --- a/doc/html/man/curs_scr_dump.3x.html +++ b/doc/html/man/curs_scr_dump.3x.html @@ -1,6 +1,6 @@ -<!-- +<!-- **************************************************************************** - * Copyright 2018-2019,2020 Thomas E. Dickey * + * Copyright 2018-2023,2024 Thomas E. Dickey * * Copyright 1998-2010,2017 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * @@ -27,28 +27,28 @@ * sale, use or other dealings in this Software without prior written * * authorization. * **************************************************************************** - * @Id: curs_scr_dump.3x,v 1.16 2020/10/24 09:44:43 tom Exp @ + * @Id: curs_scr_dump.3x,v 1.43 2024/04/20 18:54:36 tom Exp @ --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML> <HEAD> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="generator" content="Manpage converted by man2html - see https://invisible-island.net/scripts/readme.html#others_scripts"> -<TITLE>curs_scr_dump 3x</TITLE> +<TITLE>curs_scr_dump 3x 2024-04-20 ncurses 6.5 Library calls</TITLE> <link rel="author" href="mailto:bug-ncurses@gnu.org"> -<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> + </HEAD> <BODY> -<H1 class="no-header">curs_scr_dump 3x</H1> +<H1 class="no-header">curs_scr_dump 3x 2024-04-20 ncurses 6.5 Library calls</H1> <PRE> -<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> +<STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG> </PRE><H2><a name="h2-NAME">NAME</a></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 + <STRONG>scr_dump</STRONG>, <STRONG>scr_restore</STRONG>, <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG> - read/write a <EM>curses</EM> screen + from/to a file </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> @@ -61,70 +61,90 @@ </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE> - The <STRONG>scr_dump</STRONG> routine dumps the current contents of the <EM>virtual</EM> <EM>screen</EM> - to the file <EM>filename</EM>. + <EM>curses</EM> provides applications the ability to write the contents of the + screen to a file and read them back. To read/write a window (rather + than the whole screen) from/to a file, use <STRONG><A HREF="curs_util.3x.html">getwin(3x)</A></STRONG> and <STRONG><A HREF="curs_util.3x.html">putwin(3x)</A></STRONG>, + respectively. + + +</PRE><H3><a name="h3-scr_dump">scr_dump</a></H3><PRE> + <STRONG>scr_dump</STRONG> writes to <EM>filename</EM> the contents of the virtual screen; see + <STRONG><A HREF="curs_variables.3x.html">curscr(3x)</A></STRONG>. + + +</PRE><H3><a name="h3-scr_restore">scr_restore</a></H3><PRE> + <STRONG>scr_restore</STRONG> updates the virtual screen to contain the contents of + <EM>filename</EM> (if it was validly written with <STRONG>scr_dump</STRONG>). No refresh is + performed; after performing any further desired updates, call + <STRONG><A HREF="curs_refresh.3x.html">doupdate(3x)</A></STRONG> or similar. + - The <STRONG>scr_restore</STRONG> routine sets the <EM>virtual</EM> <EM>screen</EM> 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 <EM>physical</EM> <EM>screen</EM> to the way it looked in the - dump file. +</PRE><H3><a name="h3-scr_init">scr_init</a></H3><PRE> + <STRONG>scr_init</STRONG> reads <EM>filename</EM>, using it to initialize <EM>curses</EM> data structures + describing the state of the terminal screen. If these data are valid, + <EM>curses</EM> bases its next update of the screen on this information rather + than clearing it and starting from scratch. - 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> call to share the screen with another process which has - done a <STRONG>scr_dump</STRONG> after its <STRONG><A HREF="curs_initscr.3x.html">endwin(3x)</A></STRONG> call. The data is declared in- - valid + The data fail the validity check - <STRONG>o</STRONG> if the terminfo capabilities <STRONG>rmcup</STRONG> and <STRONG>nrrmc</STRONG> exist, also + <STRONG>o</STRONG> if the terminal employs <EM>terminfo</EM> capabilities <STRONG>exit_ca_mode</STRONG> (<STRONG>rmcup</STRONG>) + or <STRONG>non_rev_rmcup</STRONG> (<STRONG>nrrmc</STRONG>) are defined, or - <STRONG>o</STRONG> if the terminal has been written to since the preceding <STRONG>scr_dump</STRONG> - call. + <STRONG>o</STRONG> if <EM>curses</EM> knows that 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 + <STRONG>scr_init</STRONG> could be used after <STRONG><A HREF="curs_initscr.3x.html">initscr(3x)</A></STRONG> or <STRONG>system(3)</STRONG> to share the + screen with another process that has done a <STRONG>scr_dump</STRONG> after <STRONG><A HREF="curs_initscr.3x.html">endwin(3x)</A></STRONG>. + + +</PRE><H3><a name="h3-scr_set">scr_set</a></H3><PRE> + 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><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE> - All routines return the integer <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG> upon success. + These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure. - X/Open defines no error conditions. In this implementation, each will - return an error if the file cannot be opened. + X/Open defines no failure conditions. In this implementation, each + function fails if it cannot open <EM>filename</EM>. </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE> - Note that <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG>, and <STRONG>scr_restore</STRONG> may be macros. + <STRONG>scr_init</STRONG>, <STRONG>scr_set</STRONG>, and <STRONG>scr_restore</STRONG> may be macros. </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE> - The XSI Curses standard, Issue 4, describes these functions (adding the - const qualifiers). + X/Open Curses, Issue 4 describes these functions. - The SVr4 docs merely say under <STRONG>scr_init</STRONG> that the dump data is also con- - sidered invalid "if the time-stamp of the tty is old" but do not define - "old". + SVr4 omitted the <EM>const</EM> qualifiers. + + SVr4 documentation describes <STRONG>scr_init</STRONG> such that the dump data is also + considered invalid "if the time-stamp of the tty is old" but does not + define "old". </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_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="scr_dump.5.html">scr_dump(5)</A></STRONG>, <STRONG>system(3)</STRONG> + <STRONG>system(3)</STRONG>, <STRONG><A HREF="scr_dump.5.html">scr_dump(5)</A></STRONG> - <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG> +ncurses 6.5 2024-04-20 <STRONG><A HREF="curs_scr_dump.3x.html">curs_scr_dump(3x)</A></STRONG> </PRE> <div class="nav"> <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-DESCRIPTION">DESCRIPTION</a> +<ul> +<li><a href="#h3-scr_dump">scr_dump</a></li> +<li><a href="#h3-scr_restore">scr_restore</a></li> +<li><a href="#h3-scr_init">scr_init</a></li> +<li><a href="#h3-scr_set">scr_set</a></li> +</ul> +</li> <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li> <li><a href="#h2-NOTES">NOTES</a></li> <li><a href="#h2-PORTABILITY">PORTABILITY</a></li> |