]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - doc/html/man/curs_in_wch.3x.html
projects / ncurses.git / blobdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | inline | side by side
ncurses 6.5 - patch 20240518
[ncurses.git] / doc / html / man / curs_in_wch.3x.html
diff --git a/doc/html/man/curs_in_wch.3x.html b/doc/html/man/curs_in_wch.3x.html
index 5121de3e69aee3336c34678f750cf44cc034bd14..a04f410fcbb5683f7e11ccdfa61ac01a1ff81f67 100644 (file)
--- a/doc/html/man/curs_in_wch.3x.html
+++ b/doc/html/man/curs_in_wch.3x.html
@@ -1,6 +1,6 @@
 <!--
   ****************************************************************************
 <!--
   ****************************************************************************
-  * Copyright 2018-2021,2022 Thomas E. Dickey                                *
+  * Copyright 2018-2023,2024 Thomas E. Dickey                                *
   * Copyright 2002-2010,2017 Free Software Foundation, Inc.                  *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
   * Copyright 2002-2010,2017 Free Software Foundation, Inc.                  *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -27,19 +27,19 @@
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************
-  * @Id: curs_in_wch.3x,v 1.14 2022/02/12 20:07:29 tom Exp @
+  * @Id: curs_in_wch.3x,v 1.33 2024/05/18 20:19:38 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">
 -->
 <!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_in_wch 3x 2022-02-12 ncurses 6.4 Library calls</TITLE>
+<TITLE>curs_in_wch 3x 2024-05-18 ncurses 6.5 Library calls</TITLE>
 <link rel="author" href="mailto:bug-ncurses@gnu.org">
 
 </HEAD>
 <BODY>
 <link rel="author" href="mailto:bug-ncurses@gnu.org">
 
 </HEAD>
 <BODY>
-<H1 class="no-header">curs_in_wch 3x 2022-02-12 ncurses 6.4 Library calls</H1>
+<H1 class="no-header">curs_in_wch 3x 2024-05-18 ncurses 6.5 Library calls</H1>
 <PRE>
 <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>                  Library calls                 <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
 
 <PRE>
 <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>                  Library calls                 <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
 
@@ -47,51 +47,57 @@
 
 
 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
 
 
 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
-       <STRONG>in_wch</STRONG>,  <STRONG>mvin_wch</STRONG>, <STRONG>mvwin_wch</STRONG>, <STRONG>win_wch</STRONG> - extract a complex character and
-       rendition from a window
+       <STRONG>in_wch</STRONG>,  <STRONG>mvin_wch</STRONG>,  <STRONG>mvwin_wch</STRONG>, <STRONG>win_wch</STRONG> - get a <EM>curses</EM> complex character
+       from a window
 
 
 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
 
 
 
 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
 
-       <STRONG>int</STRONG> <STRONG>in_wch(cchar_t</STRONG> <STRONG>*</STRONG><EM>wcval</EM><STRONG>);</STRONG>
-       <STRONG>int</STRONG> <STRONG>win_wch(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wcval</EM><STRONG>);</STRONG>
-
-       <STRONG>int</STRONG> <STRONG>mvin_wch(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wcval</EM><STRONG>);</STRONG>
-       <STRONG>int</STRONG> <STRONG>mvwin_wch(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wcval</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>in_wch(cchar_t</STRONG> <STRONG>*</STRONG> <EM>wch</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>win_wch(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG> <EM>wch</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>mvin_wch(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG> <EM>wch</EM><STRONG>);</STRONG>
+       <STRONG>int</STRONG> <STRONG>mvwin_wch(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG> <EM>wch</EM><STRONG>);</STRONG>
 
 
 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
 
 
 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
-       These functions extract the complex character and  rendition  from  the
-       current position in the named window into the <STRONG>cchar_t</STRONG> object referenced
-       by wcval.
+       <STRONG>win_wch</STRONG> copies the <EM>curses</EM> complex character at the cursor  position  in
+       <EM>win</EM>  into  <EM>wch</EM>.   Use  <STRONG><A HREF="curs_getcchar.3x.html">getcchar(3x)</A></STRONG>  to  extract  its  character  code,
+       attributes, and  color  pair  identifier.   <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>  describes  the
+       variants of this function.
 
 
 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
 
 
 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
-       No errors are defined in the XSI Curses standard.  This  implementation
-       checks  for  null  pointers,  returns  <STRONG>ERR</STRONG>  in that case.  Also, the <EM>mv</EM>
-       routines check for error moving the cursor, returning <STRONG>ERR</STRONG> in that case.
-       Otherwise they return <STRONG>OK</STRONG>.
+       These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure.
+
+       In <EM>ncurses</EM>, <STRONG>win_wch</STRONG> returns <STRONG>ERR</STRONG> if <EM>win</EM> is <STRONG>NULL</STRONG>.
 
 
-       Functions  with  a  "mv"  prefix  first perform a cursor movement using
-       <STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
-       the window pointer is null.
+       Functions  prefixed with "mv" first perform cursor movement and fail if
+       the position (<EM>y</EM>, <EM>x</EM>) is outside the window boundaries.
 
 
 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 
 
 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
-       Note that all of these routines may be macros.
+       <STRONG>in_wch</STRONG>, <STRONG>mvin_wch</STRONG>, and <STRONG>mvwin_wch</STRONG> may be implemented as macros.
+
+       Unlike <STRONG><A HREF="curs_inch.3x.html">winch(3x)</A></STRONG>, <STRONG>win_wch</STRONG> and its  variants  store  the  value  of  the
+       retrieved  character  in  an  additional  <EM>wch</EM>  parameter instead of the
+       return value.
 
 
 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
 
 
 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
-       These functions are described in the XSI Curses standard, Issue 4.
+       X/Open Curses, Issue 4 describes  these  functions.   It  specifies  no
+       error conditions for them.
 
 
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 
 
 </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_inch.3x.html">curs_inch(3x)</A></STRONG>.
+       <STRONG><A HREF="curs_inch.3x.html">curs_inch(3x)</A></STRONG>  describes comparable functions of the <EM>ncurses</EM> library in
+       its non-wide-character configuration.
+
+       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_inwstr.3x.html">curs_inwstr(3x)</A></STRONG>
 
 
 
 
 
 
-ncurses 6.4                       2022-02-12                   <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
+ncurses 6.5                       2024-05-18                   <STRONG><A HREF="curs_in_wch.3x.html">curs_in_wch(3x)</A></STRONG>
 </PRE>
 <div class="nav">
 <ul>
 </PRE>
 <div class="nav">
 <ul>
ncurses, with patches starting at ncurses-5.6; new users should use https://github.com/ThomasDickey/ncurses-snapshots/