-<!--
+<!--
****************************************************************************
* Copyright 2018-2019,2020 Thomas E. Dickey *
* Copyright 1998-2015,2017 Free Software Foundation, Inc. *
<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>resizeterm 3x</TITLE>
+<TITLE>resizeterm 3X</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">resizeterm 3x</H1>
+<H1 class="no-header">resizeterm 3X</H1>
<PRE>
-<STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG> <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG>
+<B><A HREF="resizeterm.3X.html">resizeterm(3X)</A></B> <B><A HREF="resizeterm.3X.html">resizeterm(3X)</A></B>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
- <STRONG>is_term_resized</STRONG>, <STRONG>resize_term</STRONG>, <STRONG>resizeterm</STRONG> - change the curses terminal
+ <B>is_term_resized</B>, <B>resize_term</B>, <B>resizeterm</B> - change the curses terminal
size
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
- <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
+ <B>#include</B> <B><curses.h></B>
- <STRONG>bool</STRONG> <STRONG>is_term_resized(int</STRONG> <EM>lines</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>columns</EM><STRONG>);</STRONG>
- <STRONG>int</STRONG> <STRONG>resize_term(int</STRONG> <EM>lines</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>columns</EM><STRONG>);</STRONG>
- <STRONG>int</STRONG> <STRONG>resizeterm(int</STRONG> <EM>lines</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>columns</EM><STRONG>);</STRONG>
+ <B>bool</B> <B>is_term_resized(int</B> <I>lines</I><B>,</B> <B>int</B> <I>columns</I><B>);</B>
+ <B>int</B> <B>resize_term(int</B> <I>lines</I><B>,</B> <B>int</B> <I>columns</I><B>);</B>
+ <B>int</B> <B>resizeterm(int</B> <I>lines</I><B>,</B> <B>int</B> <I>columns</I><B>);</B>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
This is an extension to the curses library. It provides callers with a
- hook into the <STRONG>ncurses</STRONG> data to resize windows, primarily for use by pro-
- grams running in an X Window terminal (e.g., xterm).
+ hook into the <B>ncurses</B> data to resize windows, primarily for use by
+ programs running in an X Window terminal (e.g., xterm).
</PRE><H3><a name="h3-resizeterm">resizeterm</a></H3><PRE>
- The function <STRONG>resizeterm</STRONG> resizes the standard and current windows to the
+ The function <B>resizeterm</B> resizes the standard and current windows to the
specified dimensions, and adjusts other bookkeeping data used by the
- <STRONG>ncurses</STRONG> library that record the window dimensions such as the <STRONG>LINES</STRONG> and
- <STRONG>COLS</STRONG> variables.
+ <B>ncurses</B> library that record the window dimensions such as the <B>LINES</B> and
+ <B>COLS</B> variables.
</PRE><H3><a name="h3-resize_term">resize_term</a></H3><PRE>
- Most of the work is done by the inner function <STRONG>resize_term</STRONG>. The outer
- function <STRONG>resizeterm</STRONG> adds bookkeeping for the <STRONG>SIGWINCH</STRONG> handler, as well
- as repainting the soft-key area (see <STRONG><A HREF="curs_slk.3x.html">slk_touch(3x)</A></STRONG>).
+ Most of the work is done by the inner function <B>resize_term</B>. The outer
+ function <B>resizeterm</B> adds bookkeeping for the <B>SIGWINCH</B> handler, as well
+ as repainting the soft-key area (see <B><A HREF="curs_slk.3X.html">slk_touch(3X)</A></B>).
- When resizing the windows, <STRONG>resize_term</STRONG> blank-fills the areas that are
+ When resizing the windows, <B>resize_term</B> blank-fills the areas that are
extended. The calling application should fill in these areas with
appropriate data.
- The <STRONG>resize_term</STRONG> function attempts to resize all windows. However, due
+ The <B>resize_term</B> function attempts to resize all windows. However, due
to the calling convention of pads, it is not possible to resize these
without additional interaction with the application.
- When resizing windows, <STRONG>resize_term</STRONG> recursively adjusts subwindows,
+ When resizing windows, <B>resize_term</B> recursively adjusts subwindows,
keeping them within the updated parent window's limits. If a top-level
window happens to extend to the screen's limits, then on resizing the
- window, <STRONG>resize_term</STRONG> will keep the window extending to the corresponding
+ window, <B>resize_term</B> will keep the window extending to the corresponding
limit, regardless of whether the screen has shrunk or grown.
</PRE><H3><a name="h3-is_term_resized">is_term_resized</a></H3><PRE>
- A support function <STRONG>is_term_resized</STRONG> is provided so that applications can
- check if the <STRONG>resize_term</STRONG> function would modify the window structures.
- It returns <STRONG>TRUE</STRONG> if the windows would be modified, and <STRONG>FALSE</STRONG> otherwise.
+ A support function <B>is_term_resized</B> is provided so that applications can
+ check if the <B>resize_term</B> function would modify the window structures.
+ It returns <B>TRUE</B> if the windows would be modified, and <B>FALSE</B> otherwise.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
- Except as noted, these functions return the integer <STRONG>ERR</STRONG> upon failure
- and <STRONG>OK</STRONG> on success. They will fail if either of the dimensions are less
- than or equal to zero, or if an error occurs while (re)allocating mem-
- ory for the windows.
+ Except as noted, these functions return the integer <B>ERR</B> upon failure
+ and <B>OK</B> on success. They will fail if either of the dimensions are less
+ than or equal to zero, or if an error occurs while (re)allocating
+ memory for the windows.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
- While these functions are intended to be used to support a signal han-
- dler (i.e., for <STRONG>SIGWINCH</STRONG>), care should be taken to avoid invoking them
- in a context where <STRONG>malloc</STRONG> or <STRONG>realloc</STRONG> may have been interrupted, since
- it uses those functions.
+ While these functions are intended to be used to support a signal
+ handler (i.e., for <B>SIGWINCH</B>), care should be taken to avoid invoking
+ them in a context where <B>malloc</B> or <B>realloc</B> may have been interrupted,
+ since it uses those functions.
- If ncurses is configured to supply its own <STRONG>SIGWINCH</STRONG> handler,
+ If ncurses is configured to supply its own <B>SIGWINCH</B> handler,
- <STRONG>o</STRONG> on receipt of a <STRONG>SIGWINCH</STRONG>, the handler sets a flag
+ <B>o</B> on receipt of a <B>SIGWINCH</B>, the handler sets a flag
- <STRONG>o</STRONG> which is tested in <STRONG><A HREF="curs_getch.3x.html">wgetch(3x)</A></STRONG> and <STRONG>doupdate</STRONG>,
+ <B>o</B> which is tested in <B><A HREF="curs_getch.3X.html">wgetch(3X)</A></B> and <B>doupdate</B>,
- <STRONG>o</STRONG> in turn, calling the <STRONG>resizeterm</STRONG> function,
+ <B>o</B> in turn, calling the <B>resizeterm</B> function,
- <STRONG>o</STRONG> which <STRONG>ungetch</STRONG>'s a <STRONG>KEY_RESIZE</STRONG> which will be read on the next call to
- <STRONG>wgetch</STRONG>.
+ <B>o</B> which <B>ungetch</B>'s a <B>KEY_RESIZE</B> which will be read on the next call to
+ <B>wgetch</B>.
- The <STRONG>KEY_RESIZE</STRONG> alerts an application that the screen size has
+ The <B>KEY_RESIZE</B> alerts an application that the screen size has
changed, and that it should repaint special features such as pads
that cannot be done automatically.
- Calling <STRONG>resizeterm</STRONG> or <STRONG>resize_term</STRONG> directly from a signal handler is
+ Calling <B>resizeterm</B> or <B>resize_term</B> directly from a signal handler is
unsafe. This indirect method is used to provide a safe way to
resize the ncurses data structures.
- If the environment variables <STRONG>LINES</STRONG> or <STRONG>COLUMNS</STRONG> are set, this overrides
- the library's use of the window size obtained from the operating sys-
- tem. Thus, even if a <STRONG>SIGWINCH</STRONG> is received, no screen size change may
- be recorded.
+ If the environment variables <B>LINES</B> or <B>COLUMNS</B> are set, this overrides
+ the library's use of the window size obtained from the operating
+ system. Thus, even if a <B>SIGWINCH</B> is received, no screen size change
+ may be recorded.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
It is possible to resize the screen with SVr4 curses, by
- <STRONG>o</STRONG> exiting curses with <STRONG><A HREF="curs_initscr.3x.html">endwin(3x)</A></STRONG> and
+ <B>o</B> exiting curses with <B><A HREF="curs_initscr.3X.html">endwin(3X)</A></B> and
- <STRONG>o</STRONG> resuming using <STRONG><A HREF="curs_refresh.3x.html">refresh(3x)</A></STRONG>.
+ <B>o</B> resuming using <B><A HREF="curs_refresh.3X.html">refresh(3X)</A></B>.
Doing that clears the screen and is visually distracting.
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
- <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>, <STRONG><A HREF="wresize.3x.html">wresize(3x)</A></STRONG>.
+ <B><A HREF="curs_getch.3X.html">curs_getch(3X)</A></B>, <B><A HREF="curs_variables.3X.html">curs_variables(3X)</A></B>, <B><A HREF="wresize.3X.html">wresize(3X)</A></B>.
</PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
- <STRONG><A HREF="resizeterm.3x.html">resizeterm(3x)</A></STRONG>
+ <B><A HREF="resizeterm.3X.html">resizeterm(3X)</A></B>
</PRE>
<div class="nav">
<ul>
projects / ncurses.git / blobdiff