X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=man%2Fcurs_getcchar.3x;h=01fc5f673c98ef033208591d1aa779ab872652af;hp=cb02f5d2aef3cf49b0c45b629e041433005ed6e7;hb=0de8912c1c0746eb37b733e9e6fdf852aab9506a;hpb=a21e1b511e3c79ea7c4786f6b0e48850e7fa94f0

diff --git a/man/curs_getcchar.3x b/man/curs_getcchar.3x
index cb02f5d2..01fc5f67 100644
--- a/man/curs_getcchar.3x
+++ b/man/curs_getcchar.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright (c) 2001-2006,2008 Free Software Foundation, Inc.              *
+.\" Copyright (c) 2001-2017,2019 Free Software Foundation, Inc.              *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
@@ -26,8 +26,12 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_getcchar.3x,v 1.11 2008/05/17 19:37:05 tom Exp $
+.\" $Id: curs_getcchar.3x,v 1.21 2019/03/24 00:59:45 tom Exp $
 .TH curs_getcchar 3X ""
+.de bP
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
+..
 .SH NAME
 \fBgetcchar\fP,
 \fBsetcchar\fP \- Get a wide character string and rendition from a \fBcchar_t\fP or set a \fBcchar_t\fP from a wide-character string
@@ -56,24 +60,21 @@
 .br
 .B "        short \fIcolor_pair\fP,"
 .br
-.B "        void *\fIopts\fP );"
+.B "        const void *\fIopts\fP );"
 .SH DESCRIPTION
+.SS getcchar
 .PP
 The \fBgetcchar\fP function gets a wide-character string
 and rendition from a \fBcchar_t\fP argument.
 When \fIwch\fP is not a null pointer,
 the \fBgetcchar\fP function does the following:
-.TP 5
--
+.bP
 Extracts information from a \fBcchar_t\fP value \fIwcval\fP
-.TP 5
--
+.bP
 Stores the character attributes in the location pointed to by \fIattrs\fP
-.TP 5
--
+.bP
 Stores the color-pair in the location pointed to by \fIcolor_pair\fP
-.TP 5
--
+.bP
 Stores the wide-character string,
 characters referenced by \fIwcval\fP, into the array pointed to by \fIwch\fP.
 .PP
@@ -82,51 +83,61 @@ When
 is a null pointer, the
 \fBgetcchar\fP
 function does the following:
-.TP 5
--
+.bP
 Obtains the number of wide characters pointed to by \fIwcval\fP
-.TP 5
--
+.bP
 Does not change the data referenced by
 \fIattrs\fP
 or
 \fIcolor_pair\fP
+.SS setcchar
 .PP
 The \fBsetcchar\fP function initializes the location pointed to by \fIwcval\fP
 by using:
-.TP 5
--
+.bP
 The character attributes in
 \fIattrs\fP
-.TP 5
--
+.bP
 The color pair in
 \fIcolor_pair\fP
-.TP 5
--
+.bP
 The wide-character string pointed to by \fIwch\fP.
 The string must be L'\\0' terminated,
 contain at most one spacing character,
 which must be the first.
 .IP
-Up to \fBCCHARW_MAX\fP-1 nonspacing characters may follow.
+Up to \fBCCHARW_MAX\fP\-1 nonspacing characters may follow.
 Additional nonspacing characters are ignored.
 .IP
 The string may contain a single control character instead.
 In that case, no nonspacing characters are allowed.
-.SH NOTES
+.SH EXTENSIONS
 .PP
-The \fIopts\fP argument is reserved for future use.
-Currently, an application must provide a null pointer as \fIopts\fP.
+X/Open Curses documents the \fIopts\fP argument as reserved for future use,
+saying that it must be null.
+This implementation 
+uses that parameter in ABI 6 for the functions which have a color-pair
+parameter to support extended color pairs:
+.bP
+For  functions  which modify the color, e.g., \fBsetcchar\fP,
+if \fIopts\fP is set it is treated as a pointer to \fBint\fP,
+and used to  set  the  color pair instead of the \fBshort\fP pair parameter.
+.bP
+For functions which retrieve the color, e.g., \fBgetcchar\fP,
+if \fIopts\fP is set it is treated as a pointer to \fBint\fP,
+and  used  to  retrieve  the color pair as an \fBint\fP value,
+in addition retrieving it via the standard pointer to \fBshort\fP parameter.
+.SH NOTES
 .PP
 The \fIwcval\fP argument may be a value generated by a call to
 \fBsetcchar\fP or by a function that has a \fBcchar_t\fP output argument.
 If \fIwcval\fP is constructed by any other means, the effect is unspecified.
-.SH RETURN VALUES
+.SH RETURN VALUE
 .PP
 When \fIwch\fP is a null pointer,
 \fBgetcchar\fP returns the number of wide characters referenced by
-\fIwcval\fP.
+\fIwcval\fP,
+including one for a trailing null.
 .PP
 When \fIwch\fP is not a null pointer,
 \fBgetcchar\fP returns \fBOK\fP upon successful completion,
@@ -141,9 +152,3 @@ Functions:
 \fBcurs_color\fR(3X),
 \fBcurses\fR(3X),
 \fBwcwidth\fR(3).
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End: