ncurses 6.4 - patch 20230701

[ncurses.git] / man / curs_attr.3x

diff --git a/man/curs_attr.3x b/man/curs_attr.3x
index 73ea47a84ad2e96d5fdc629b4168afeda29e5ff0..21f4365f6cee8d63ee2a29d3e541b810de23ed28 100644 (file)
--- a/man/curs_attr.3x
+++ b/man/curs_attr.3x
@@ -1,6 +1,7 @@
 '\" t
 .\"***************************************************************************
 '\" t
 .\"***************************************************************************

-.\" Copyright (c) 1998-2017,2018 Free Software Foundation, Inc.              *
+.\" Copyright 2018-2022,2023 Thomas E. Dickey                                *
+.\" Copyright 1998-2016,2017 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            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -27,8 +28,8 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: curs_attr.3x,v 1.64 2018/07/28 22:15:59 tom Exp $
-.TH curs_attr 3X ""
+.\" $Id: curs_attr.3x,v 1.77 2023/07/01 15:43:20 tom Exp $
+.TH curs_attr 3X 2023-07-01 "ncurses 6.4" "Library calls"

 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
 .ie \n(.g .ds '' \(rq
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
 .ie \n(.g .ds '' \(rq


@@ -39,7 +40,7 @@
 .ie n  .in +4
 .el    .in +2
 .nf
 .ie n  .in +4
 .el    .in +2
 .nf

-.ft C                  \" Courier
+.ft CR                 \" Courier

 ..
 .de NE
 .fi
 ..
 .de NE
 .fi


@@ -56,97 +57,96 @@
 .\" ---------------------------------------------------------------------------
 .SH NAME
 .\" attr_get
 .\" ---------------------------------------------------------------------------
 .SH NAME
 .\" attr_get

-\fBattr_get\fR,
-\fBwattr_get\fR,
-\fBattr_set\fR,
-\fBwattr_set\fR,
+\fBattr_get\fP,
+\fBwattr_get\fP,
+\fBattr_set\fP,
+\fBwattr_set\fP,

 .\" .br
 .\" .br

-\fBattr_off\fR,
-\fBwattr_off\fR,
-\fBattr_on\fR,
-\fBwattr_on\fR,
+\fBattr_off\fP,
+\fBwattr_off\fP,
+\fBattr_on\fP,
+\fBwattr_on\fP,

 .\" .br
 .\" .br

-\fBattroff\fR,
-\fBwattroff\fR,
-\fBattron\fR,
-\fBwattron\fR,
-\fBattrset\fR,
-\fBwattrset\fR,
+\fBattroff\fP,
+\fBwattroff\fP,
+\fBattron\fP,
+\fBwattron\fP,
+\fBattrset\fP,
+\fBwattrset\fP,

 .\" .br
 .\" .br

-\fBchgat\fR,
-\fBwchgat\fR,
-\fBmvchgat\fR,
-\fBmvwchgat\fR,
+\fBchgat\fP,
+\fBwchgat\fP,
+\fBmvchgat\fP,
+\fBmvwchgat\fP,

 .\" .br
 .\" .br

-\fBcolor_set\fR,
-\fBwcolor_set\fR,
+\fBcolor_set\fP,
+\fBwcolor_set\fP,

 .\" .br
 .\" .br

-\fBstandend\fR,
-\fBwstandend\fR,
-\fBstandout\fR,
-\fBwstandout\fR \- \fBcurses\fR character and window attribute control routines
+\fBstandend\fP,
+\fBwstandend\fP,
+\fBstandout\fP,
+\fBwstandout\fP \- \fBcurses\fP character and window attribute control routines

 .ad
 .hy
 .\" ---------------------------------------------------------------------------
 .SH SYNOPSIS
 .ad
 .hy
 .\" ---------------------------------------------------------------------------
 .SH SYNOPSIS

-\fB#include <curses.h>\fR
+\fB#include <curses.h>\fP

 .sp
 .sp

-\fBint attr_get(attr_t *\fP\fIattrs\fP\fB, short *\fP\fIpair\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint attr_get(attr_t *\fIattrs\fB, short *\fIpair\fB, void *\fIopts\fB);\fR

 .br
 .br

-\fBint wattr_get(WINDOW *\fP\fIwin\fP\fB, attr_t *\fP\fIattrs\fP\fB, short *\fP\fIpair\fP\fB,\fR \fBvoid *\fP\fIopts\fP\fB);\fR
+\fBint wattr_get(WINDOW *\fIwin\fB, attr_t *\fIattrs\fB, short *\fIpair\fB,\fR \fBvoid *\fIopts\fB);\fR

 .br
 .br

-\fBint attr_set(attr_t \fP\fIattrs\fP\fB, short \fP\fIpair\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint attr_set(attr_t \fIattrs\fB, short \fIpair\fB, void *\fIopts\fB);\fR

 .br
 .br

-\fBint wattr_set(WINDOW *\fP\fIwin\fP\fB, attr_t \fP\fIattrs\fP\fB, short \fP\fIpair\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint wattr_set(WINDOW *\fIwin\fB, attr_t \fIattrs\fB, short \fIpair\fB, void *\fIopts\fB);\fR

 .sp
 .sp

-\fBint attr_off(attr_t \fP\fIattrs\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint attr_off(attr_t \fIattrs\fB, void *\fIopts\fB);\fR

 .br
 .br

-\fBint wattr_off(WINDOW *\fP\fIwin\fP\fB, attr_t \fP\fIattrs\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint wattr_off(WINDOW *\fIwin\fB, attr_t \fIattrs\fB, void *\fIopts\fB);\fR

 .br
 .br

-\fBint attr_on(attr_t \fP\fIattrs\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint attr_on(attr_t \fIattrs\fB, void *\fIopts\fB);\fR

 .br
 .br

-\fBint wattr_on(WINDOW *\fP\fIwin\fP\fB, attr_t \fP\fIattrs\fP\fB, void *\fP\fIopts\fP\fB);\fR
+\fBint wattr_on(WINDOW *\fIwin\fB, attr_t \fIattrs\fB, void *\fIopts\fB);\fR

 .sp
 .sp

-\fBint attroff(int \fP\fIattrs);\fR
+\fBint attroff(int \fIattrs);\fR

 .br
 .br

-\fBint wattroff(WINDOW *\fP\fIwin\fP\fB, int \fP\fIattrs\fP\fB);\fR
+\fBint wattroff(WINDOW *\fIwin\fB, int \fIattrs\fB);\fR

 .br
 .br

-\fBint attron(int \fP\fIattrs\fP\fB);\fR
+\fBint attron(int \fIattrs\fB);\fR

 .br
 .br

-\fBint wattron(WINDOW *\fP\fIwin\fP\fB, int \fP\fIattrs\fP\fB);\fR
+\fBint wattron(WINDOW *\fIwin\fB, int \fIattrs\fB);\fR

 .br
 .br

-\fBint attrset(int \fP\fIattrs\fP\fB);\fR
+\fBint attrset(int \fIattrs\fB);\fR

 .br
 .br

-\fBint wattrset(WINDOW *\fP\fIwin\fP\fB, int \fP\fIattrs\fP\fB);\fR
+\fBint wattrset(WINDOW *\fIwin\fB, int \fIattrs\fB);\fR

 .sp
 .sp

-\fBint chgat(int \fP\fIn\fP\fB, attr_t \fP\fIattr\fP\fB, short \fP\fIpair\fP\fB,\fR \fBconst void *\fP\fIopts\fP\fB);\fR
+\fBint chgat(int \fIn\fB, attr_t \fIattr\fB, short \fIpair\fB,\fR \fBconst void *\fIopts\fB);\fR

 .br
 .br

-\fBint wchgat(WINDOW *\fP\fIwin\fP\fB,\fP
-      \fBint \fP\fIn\fP\fB, attr_t \fP\fIattr\fP\fB,\fR \fBshort \fP\fIpair\fP\fB, const void *\fP\fIopts\fP\fB);\fR
+\fBint wchgat(WINDOW *\fIwin\fB,\fR
+      \fBint \fIn\fB, attr_t \fIattr\fB,\fR \fBshort \fIpair\fB, const void *\fIopts\fB);\fR

 .br
 .br

-\fBint mvchgat(int \fP\fIy\fP\fB, int \fP\fIx\fP\fB,\fP
-      \fBint \fP\fIn\fP\fB, attr_t \fP\fIattr\fP\fB,\fR \fBshort \fP\fIpair\fP\fB, const void *\fP\fIopts\fP\fB);\fR
+\fBint mvchgat(int \fIy\fB, int \fIx\fB,\fR
+      \fBint \fIn\fB, attr_t \fIattr\fB,\fR \fBshort \fIpair\fB, const void *\fIopts\fB);\fR

 .br
 .br

-\fBint mvwchgat(WINDOW *\fP\fIwin, int \fP\fIy, int \fP\fIx\fP\fB,\fP
-      \fBint \fP\fIn,\fR \fBattr_t \fP\fIattr\fP\fB, short \fP\fIpair\fP\fB, const void *\fP\fIopts\fP\fB);\fR
+\fBint mvwchgat(WINDOW *\fIwin, int \fIy, int \fIx\fB,\fR
+      \fBint \fIn,\fR \fBattr_t \fIattr\fB, short \fIpair\fB, const void *\fIopts\fB);\fR

 .sp
 .sp

-\fBint color_set(short \fP\fIpair\fP\fB, void* \fP\fIopts\fP\fB);\fR
+\fBint color_set(short \fIpair\fB, void* \fIopts\fB);\fR

 .br
 .br

-\fBint wcolor_set(WINDOW *\fP\fIwin\fP\fB, short \fP\fIpair\fP\fB,\fR \fBvoid* \fP\fIopts);\fR
+\fBint wcolor_set(WINDOW *\fIwin\fB, short \fIpair\fB,\fR \fBvoid* \fIopts);\fR

 .sp
 .sp

-\fBint standend(void);\fR
+\fBint standend(void);\fP

 .br
 .br

-\fBint wstandend(WINDOW *\fP\fIwin\fP\fB);\fR
+\fBint wstandend(WINDOW *\fIwin\fB);\fR

 .br
 .br

-\fBint standout(void);\fR
+\fBint standout(void);\fP

 .br
 .br

-\fBint wstandout(WINDOW *\fP\fIwin\fP\fB);\fR
+\fBint wstandout(WINDOW *\fIwin\fB);\fR

 .\" ---------------------------------------------------------------------------
 .SH DESCRIPTION
 .\" ---------------------------------------------------------------------------
 .SH DESCRIPTION

-.PP

 These routines manipulate the current attributes of the named window,
 which then apply to all characters that are written into
 These routines manipulate the current attributes of the named window,
 which then apply to all characters that are written into

-the window with \fBwaddch\fR, \fBwaddstr\fR and \fBwprintw\fR.
+the window with \fBwaddch\fP, \fBwaddstr\fP and \fBwprintw\fP.

 Attributes are
 a property of the character, and move with the character through any scrolling
 and insert/delete line/character operations.
 Attributes are
 a property of the character, and move with the character through any scrolling
 and insert/delete line/character operations.


@@ -156,7 +156,7 @@ put on the screen.
 .PP
 These routines do not affect the attributes used
 when erasing portions of the window.
 .PP
 These routines do not affect the attributes used
 when erasing portions of the window.

-See \fBcurs_bkgd\fR(3X) for functions which modify the attributes used for
+See \fBcurs_bkgd\fP(3X) for functions which modify the attributes used for

 erasing and clearing.
 .PP
 Routines which do not have a \fBWINDOW*\fP parameter apply to \fBstdscr\fP.
 erasing and clearing.
 .PP
 Routines which do not have a \fBWINDOW*\fP parameter apply to \fBstdscr\fP.


@@ -164,7 +164,6 @@ For example,
 \fBattr_set\fP is the \fBstdscr\fP variant of \fBwattr_set\fP.
 .\" ---------------------------------------------------------------------------
 .SS Window attributes
 \fBattr_set\fP is the \fBstdscr\fP variant of \fBwattr_set\fP.
 .\" ---------------------------------------------------------------------------
 .SS Window attributes

-.PP

 There are two sets of functions:
 .bP
 functions for manipulating the window attributes and color:
 There are two sets of functions:
 .bP
 functions for manipulating the window attributes and color:


@@ -211,7 +210,7 @@ attr_set(A_BOLD, \fIpair\fP, NULL);
 However, if the value does not fit, then the \fBCOLOR_PAIR\fP macro
 uses only the bits that fit.
 For example, because in ncurses \fBA_COLOR\fP has eight (8) bits,
 However, if the value does not fit, then the \fBCOLOR_PAIR\fP macro
 uses only the bits that fit.
 For example, because in ncurses \fBA_COLOR\fP has eight (8) bits,

-then \fBCOLOR_PAIR(\fP\fI259\fP\fB)\fP is 4
+then \fBCOLOR_PAIR(\fI259\fB)\fR is 4

 (i.e., 259 is 4 more than the limit 255).
 .PP
 The \fBPAIR_NUMBER\fP macro extracts a pair number from an \fBint\fP
 (i.e., 259 is 4 more than the limit 255).
 .PP
 The \fBPAIR_NUMBER\fP macro extracts a pair number from an \fBint\fP


@@ -227,42 +226,40 @@ The \fBattrset\fP routine is a legacy feature predating SVr4 curses
 but kept in X/Open Curses for the same reason that SVr4 curses kept it:
 compatibility.
 .PP
 but kept in X/Open Curses for the same reason that SVr4 curses kept it:
 compatibility.
 .PP

-The remaining \fBattr\fR* functions operate exactly like the corresponding
-\fBattr_\fR* functions, except that they take arguments of type \fBint\fR
-rather than \fBattr_t\fR.
+The remaining \fBattr\fP* functions operate exactly like the corresponding
+\fBattr_\fP* functions, except that they take arguments of type \fBint\fP
+rather than \fBattr_t\fP.

 .PP
 There is no corresponding \fBattrget\fP function as such in X/Open Curses,
 although ncurses provides \fBgetattrs\fP (see curs_legacy(3X)).
 .\" ---------------------------------------------------------------------------
 .SS Change character rendition
 .PP
 There is no corresponding \fBattrget\fP function as such in X/Open Curses,
 although ncurses provides \fBgetattrs\fP (see curs_legacy(3X)).
 .\" ---------------------------------------------------------------------------
 .SS Change character rendition

-.PP
-The routine \fBchgat\fR changes the attributes of a given number of characters
-starting at the current cursor location of \fBstdscr\fR.
+The routine \fBchgat\fP changes the attributes of a given number of characters
+starting at the current cursor location of \fBstdscr\fP.

 It does not update
 the cursor and does not perform wrapping.
 A character count of \-1 or greater
 than the remaining window width means to change attributes all the way to the
 end of the current line.
 It does not update
 the cursor and does not perform wrapping.
 A character count of \-1 or greater
 than the remaining window width means to change attributes all the way to the
 end of the current line.

-The \fBwchgat\fR function generalizes this to any window;
-the \fBmvwchgat\fR function does a cursor move before acting.
+The \fBwchgat\fP function generalizes this to any window;
+the \fBmvwchgat\fP function does a cursor move before acting.

 .PP
 In these functions,
 the color \fIpair\fP argument is a color-pair index
 .PP
 In these functions,
 the color \fIpair\fP argument is a color-pair index

-(as in the first argument of \fBinit_pair\fR, see \fBcurs_color\fR(3X)).
+(as in the first argument of \fBinit_pair\fP, see \fBcurs_color\fP(3X)).

 .\" ---------------------------------------------------------------------------
 .SS Change window color
 .\" ---------------------------------------------------------------------------
 .SS Change window color

-The routine \fBcolor_set\fR sets the current color of the given window to the
+The routine \fBcolor_set\fP sets the current color of the given window to the

 foreground/background combination described by the color \fIpair\fP parameter.
 .\" ---------------------------------------------------------------------------
 .SS Standout
 foreground/background combination described by the color \fIpair\fP parameter.
 .\" ---------------------------------------------------------------------------
 .SS Standout

-.PP
-The routine \fBstandout\fR is
-the same as \fBattron(A_STANDOUT)\fR.
-The routine \fBstandend\fR is the same
-as \fBattrset(A_NORMAL)\fR or \fBattrset(0)\fR, that is, it turns off all
+The routine \fBstandout\fP is
+the same as \fBattron(A_STANDOUT)\fP.
+The routine \fBstandend\fP is the same
+as \fBattrset(A_NORMAL)\fP or \fBattrset(0)\fP, that is, it turns off all

 attributes.
 .PP
 attributes.
 .PP

-X/Open does not mark these "restricted", because
+X/Open does not mark these \*(``restricted\*('', because

 .bP
 they have well established legacy use, and
 .bP
 .bP
 they have well established legacy use, and
 .bP


@@ -270,29 +267,29 @@ there is no ambiguity about the way the attributes
 might be combined with a color pair.
 .\" ---------------------------------------------------------------------------
 .SH VIDEO ATTRIBUTES
 might be combined with a color pair.
 .\" ---------------------------------------------------------------------------
 .SH VIDEO ATTRIBUTES

-The following video attributes, defined in \fB<curses.h>\fR, can be passed to
-the routines \fBattron\fR, \fBattroff\fR, and \fBattrset\fR, or OR'd with the
-characters passed to \fBaddch\fR (see \fBcurs_addch\fR(3X)).
+The following video attributes, defined in \fB<curses.h>\fP, can be passed to
+the routines \fBattron\fP, \fBattroff\fP, and \fBattrset\fP, or OR'd with the
+characters passed to \fBaddch\fP (see \fBcurs_addch\fP(3X)).

 .PP
 .RS
 .TS
 l l
 _ _ _
 l l .
 .PP
 .RS
 .TS
 l l
 _ _ _
 l l .

-\fIName\fR     \fIDescription\fR
-\fBA_NORMAL\fR Normal display (no highlight)
-\fBA_STANDOUT\fR       Best highlighting mode of the terminal.
-\fBA_UNDERLINE\fR      Underlining
-\fBA_REVERSE\fR        Reverse video
-\fBA_BLINK\fR  Blinking
-\fBA_DIM\fR    Half bright
-\fBA_BOLD\fR   Extra bright or bold
-\fBA_PROTECT\fR        Protected mode
-\fBA_INVIS\fR  Invisible or blank mode
-\fBA_ALTCHARSET\fR     Alternate character set
-\fBA_ITALIC\fR Italics (non-X/Open extension)
-\fBA_CHARTEXT\fR       Bit-mask to extract a character
-\fBA_COLOR\fR  Bit-mask to extract a color (legacy routines)
+\fBName\fP     \fBDescription\fP
+\fBA_NORMAL\fP Normal display (no highlight)
+\fBA_STANDOUT\fP       Best highlighting mode of the terminal.
+\fBA_UNDERLINE\fP      Underlining
+\fBA_REVERSE\fP        Reverse video
+\fBA_BLINK\fP  Blinking
+\fBA_DIM\fP    Half bright
+\fBA_BOLD\fP   Extra bright or bold
+\fBA_PROTECT\fP        Protected mode
+\fBA_INVIS\fP  Invisible or blank mode
+\fBA_ALTCHARSET\fP     Alternate character set
+\fBA_ITALIC\fP Italics (non-X/Open extension)
+\fBA_CHARTEXT\fP       Bit-mask to extract a character
+\fBA_COLOR\fP  Bit-mask to extract a color (legacy routines)

 .TE
 .RE
 .PP
 .TE
 .RE
 .PP


@@ -303,26 +300,26 @@ These video attributes are supported by \fBattr_on\fP and related functions
 l l
 _ _ _
 l l .
 l l
 _ _ _
 l l .

-\fIName\fR     \fIDescription\fR
-\fBWA_HORIZONTAL\fR    Horizontal highlight
-\fBWA_LEFT\fR  Left highlight
-\fBWA_LOW\fR   Low highlight
-\fBWA_RIGHT\fR Right highlight
-\fBWA_TOP\fR   Top highlight
-\fBWA_VERTICAL\fR      Vertical highlight
+\fBName\fP     \fBDescription\fP
+\fBWA_HORIZONTAL\fP    Horizontal highlight
+\fBWA_LEFT\fP  Left highlight
+\fBWA_LOW\fP   Low highlight
+\fBWA_RIGHT\fP Right highlight
+\fBWA_TOP\fP   Top highlight
+\fBWA_VERTICAL\fP      Vertical highlight

 .TE
 .RE
 .PP
 The return values of many of these routines are not meaningful (they are
 implemented as macro-expanded assignments and simply return their argument).
 .TE
 .RE
 .PP
 The return values of many of these routines are not meaningful (they are
 implemented as macro-expanded assignments and simply return their argument).

-The SVr4 manual page claims (falsely) that these routines always return \fB1\fR.
+The SVr4 manual page claims (falsely) that these routines always return \fB1\fP.

 .\" ---------------------------------------------------------------------------
 .SH NOTES
 These functions may be macros:
 .sp
 .RS
 .\" ---------------------------------------------------------------------------
 .SH NOTES
 These functions may be macros:
 .sp
 .RS

-\fBattroff\fR, \fBwattroff\fR, \fBattron\fR, \fBwattron\fR,
-\fBattrset\fR, \fBwattrset\fR, \fBstandend\fR and \fBstandout\fR.
+\fBattroff\fP, \fBwattroff\fP, \fBattron\fP, \fBwattron\fP,
+\fBattrset\fP, \fBwattrset\fP, \fBstandend\fP and \fBstandout\fP.

 .RE
 .PP
 Color pair values can only be OR'd with attributes if the pair
 .RE
 .PP
 Color pair values can only be OR'd with attributes if the pair


@@ -395,7 +392,7 @@ but not necessarily the reverse.
 l l l l l l
 _ _ _ _ _ _
 l l l l l l .
 l l l l l l
 _ _ _ _ _ _
 l l l l l l .

-\fIYear\fR     \fISystem\fR    \fIArch\fP      \fIColor\fR     \fIChar\fR      \fINotes\fR
+\fBYear\fP     \fBSystem\fP    \fBArch\fP      \fBColor\fP     \fBChar\fP      \fBNotes\fP

 1992   Solaris 5.2     32      6       17      SVr4 curses
 1992   HPUX 9  32      no      8       SVr2 curses
 1992   AIX 3.2 32      no      23      SVr2 curses
 1992   Solaris 5.2     32      6       17      SVr4 curses
 1992   HPUX 9  32      no      8       SVr2 curses
 1992   AIX 3.2 32      no      23      SVr2 curses


@@ -458,7 +455,7 @@ members are not specified in X/Open Curses) could be extended as needed.
 Other interfaces are rarely used now:
 .bP
 BSD curses was improved slightly in 1993/1994 using Keith Bostic's
 Other interfaces are rarely used now:
 .bP
 BSD curses was improved slightly in 1993/1994 using Keith Bostic's

-modification to make the library 8-bit clean for \fBnvi\fP.
+modification to make the library 8-bit clean for \fBnvi\fP(1).

 He moved \fIstandout\fP attribute to a structure member.
 .IP
 The resulting 4.4BSD curses was replaced by ncurses over the next ten years.
 He moved \fIstandout\fP attribute to a structure member.
 .IP
 The resulting 4.4BSD curses was replaced by ncurses over the next ten years.


@@ -466,7 +463,6 @@ The resulting 4.4BSD curses was replaced by ncurses over the next ten years.
 U/Win is rarely used now.
 .\" ---------------------------------------------------------------------------
 .SH EXTENSIONS
 U/Win is rarely used now.
 .\" ---------------------------------------------------------------------------
 .SH EXTENSIONS

-.PP

 This implementation provides the \fBA_ITALIC\fP attribute for terminals
 which have the \fBenter_italics_mode\fP (\fBsitm\fP)
 and \fBexit_italics_mode\fP (\fBritm\fP) capabilities.
 This implementation provides the \fBA_ITALIC\fP attribute for terminals
 which have the \fBenter_italics_mode\fP (\fBsitm\fP)
 and \fBexit_italics_mode\fP (\fBritm\fP) capabilities.


@@ -483,7 +479,7 @@ This implementation uses that parameter in ABI 6 for the functions which
 have a color-pair parameter to support \fIextended color pairs\fP:
 .bP
 For functions which modify the color, e.g.,
 have a color-pair parameter to support \fIextended color pairs\fP:
 .bP
 For functions which modify the color, e.g.,

-\fBwattr_set\fP,
+\fBwattr_set\fP and \fBwattr_on\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 \fIpair\fP parameter.
 .bP
 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 \fIpair\fP parameter.
 .bP


@@ -491,42 +487,42 @@ For functions which retrieve the color, e.g.,
 \fBwattr_get\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,
 \fBwattr_get\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
+in addition to

 retrieving it via the standard pointer to \fBshort\fP parameter.
 retrieving it via the standard pointer to \fBshort\fP parameter.

-.PP
-The remaining functions which have \fIopts\fP,
-but do not manipulate color,
-e.g., \fBwattr_on\fP and \fBwattr_off\fP
-are not used by this implementation except to check that they are \fBNULL\fP.
+.bP
+For functions which turn attributes off, e.g.,
+\fBwattr_off\fP,
+the \fIopts\fP parameter is ignored except
+except to check that it is \fBNULL\fP.

 .\" ---------------------------------------------------------------------------
 .SH PORTABILITY
 These functions are supported in the XSI Curses standard, Issue 4.
 The standard defined the dedicated type for highlights,
 .\" ---------------------------------------------------------------------------
 .SH PORTABILITY
 These functions are supported in the XSI Curses standard, Issue 4.
 The standard defined the dedicated type for highlights,

-\fBattr_t\fR, which was not defined in SVr4 curses.
-The functions taking \fBattr_t\fR arguments were not supported under SVr4.
+\fBattr_t\fP, which was not defined in SVr4 curses.
+The functions taking \fBattr_t\fP arguments were not supported under SVr4.

 .PP
 Very old versions of this library did not force an update of the screen
 when changing the attributes.
 .PP
 Very old versions of this library did not force an update of the screen
 when changing the attributes.

-Use \fBtouchwin\fR to force the screen to match the updated attributes.
+Use \fBtouchwin\fP to force the screen to match the updated attributes.

 .PP
 The XSI Curses standard states that whether the traditional functions
 .PP
 The XSI Curses standard states that whether the traditional functions

-\fBattron\fR/\fBattroff\fR/\fBattrset\fR can manipulate attributes other than
-\fBA_BLINK\fR, \fBA_BOLD\fR, \fBA_DIM\fR, \fBA_REVERSE\fR, \fBA_STANDOUT\fR, or
-\fBA_UNDERLINE\fR is "unspecified".
+\fBattron\fP/\fBattroff\fP/\fBattrset\fP can manipulate attributes other than
+\fBA_BLINK\fP, \fBA_BOLD\fP, \fBA_DIM\fP, \fBA_REVERSE\fP, \fBA_STANDOUT\fP, or
+\fBA_UNDERLINE\fP is \*(``unspecified\*(''.

 Under this implementation as well as
 SVr4 curses, these functions correctly manipulate all other highlights
 Under this implementation as well as
 SVr4 curses, these functions correctly manipulate all other highlights

-(specifically, \fBA_ALTCHARSET\fR, \fBA_PROTECT\fR, and \fBA_INVIS\fR).
+(specifically, \fBA_ALTCHARSET\fP, \fBA_PROTECT\fP, and \fBA_INVIS\fP).

 .PP
 XSI Curses added these entry points:
 .sp
 .RS
 .PP
 XSI Curses added these entry points:
 .sp
 .RS

-\fBattr_get\fR, \fBattr_on\fR,
-\fBattr_off\fR, \fBattr_set\fR, \fBwattr_on\fR, \fBwattr_off\fR,
-\fBwattr_get\fR, \fBwattr_set\fR
+\fBattr_get\fP, \fBattr_on\fP,
+\fBattr_off\fP, \fBattr_set\fP, \fBwattr_on\fP, \fBwattr_off\fP,
+\fBwattr_get\fP, \fBwattr_set\fP

 .RE
 .PP
 The new functions are intended to work with
 .RE
 .PP
 The new functions are intended to work with

-a new series of highlight macros prefixed with \fBWA_\fR.
+a new series of highlight macros prefixed with \fBWA_\fP.

 The older macros have direct counterparts in the newer set of names:
 .PP
 .RS
 The older macros have direct counterparts in the newer set of names:
 .PP
 .RS


@@ -535,15 +531,15 @@ The older macros have direct counterparts in the newer set of names:
 l l
 _ _ _
 l l .
 l l
 _ _ _
 l l .

-\fIName\fR     \fIDescription\fR
-\fBWA_NORMAL\fR        Normal display (no highlight)
-\fBWA_STANDOUT\fR      Best highlighting mode of the terminal.
-\fBWA_UNDERLINE\fR     Underlining
-\fBWA_REVERSE\fR       Reverse video
-\fBWA_BLINK\fR Blinking
-\fBWA_DIM\fR   Half bright
-\fBWA_BOLD\fR  Extra bright or bold
-\fBWA_ALTCHARSET\fR    Alternate character set
+\fBName\fP     \fBDescription\fP
+\fBWA_NORMAL\fP        Normal display (no highlight)
+\fBWA_STANDOUT\fP      Best highlighting mode of the terminal.
+\fBWA_UNDERLINE\fP     Underlining
+\fBWA_REVERSE\fP       Reverse video
+\fBWA_BLINK\fP Blinking
+\fBWA_DIM\fP   Half bright
+\fBWA_BOLD\fP  Extra bright or bold
+\fBWA_ALTCHARSET\fP    Alternate character set

 .TE
 .RE
 .PP
 .TE
 .RE
 .PP


@@ -551,8 +547,8 @@ XSI curses does not assign values to these symbols,
 nor does it state whether or not they are related to the
 similarly-named A_NORMAL, etc.:
 .bP
 nor does it state whether or not they are related to the
 similarly-named A_NORMAL, etc.:
 .bP

-The XSI curses standard specifies that each pair of corresponding \fBA_\fR
-and \fBWA_\fR-using functions operates on the same current-highlight
+The XSI curses standard specifies that each pair of corresponding \fBA_\fP
+and \fBWA_\fP-using functions operates on the same current-highlight

 information.
 .bP
 However, in some implementations, those symbols have unrelated values.
 information.
 .bP
 However, in some implementations, those symbols have unrelated values.


@@ -567,16 +563,29 @@ represent \fBA_CHARTEXT\fP or \fBA_COLOR\fP.
 In this implementation (as in many others), the values happen to be
 the same because it simplifies copying information between
 \fBchtype\fP and \fBcchar_t\fP variables.
 In this implementation (as in many others), the values happen to be
 the same because it simplifies copying information between
 \fBchtype\fP and \fBcchar_t\fP variables.

+.bP
+Because ncurses's \fBattr_t\fP can hold a color pair
+(in the \fBA_COLOR\fP field),
+a call to
+\fBwattr_on\fP,
+\fBwattr_off\fP, or
+\fBwattr_set\fP
+may alter the window's color.
+If the color pair information in the attribute parameter is zero,
+no change is made to the window's color.
+.IP
+This is consistent with SVr4 curses;
+X/Open Curses does not specify this.

 .PP
 The XSI standard extended conformance level adds new highlights
 .PP
 The XSI standard extended conformance level adds new highlights

-\fBA_HORIZONTAL\fR, \fBA_LEFT\fR, \fBA_LOW\fR, \fBA_RIGHT\fR, \fBA_TOP\fR,
-\fBA_VERTICAL\fR (and corresponding \fBWA_\fR macros for each).
+\fBA_HORIZONTAL\fP, \fBA_LEFT\fP, \fBA_LOW\fP, \fBA_RIGHT\fP, \fBA_TOP\fP,
+\fBA_VERTICAL\fP (and corresponding \fBWA_\fP macros for each).

 As of August 2013,
 no known terminal provides these highlights
 (i.e., via the \fBsgr1\fP capability).
 .\" ---------------------------------------------------------------------------
 .SH RETURN VALUE
 As of August 2013,
 no known terminal provides these highlights
 (i.e., via the \fBsgr1\fP capability).
 .\" ---------------------------------------------------------------------------
 .SH RETURN VALUE

-All routines return the integer \fBOK\fR on success, or \fBERR\fP on failure.
+All routines return the integer \fBOK\fP on success, or \fBERR\fP on failure.

 .PP
 X/Open does not define any error conditions.
 .PP
 .PP
 X/Open does not define any error conditions.
 .PP


@@ -590,15 +599,15 @@ for \fBwcolor_set\fP is outside the range 0..COLOR_PAIRS\-1.
 does not return an error if either of the parameters of \fBwattr_get\fP
 used for retrieving attribute or color-pair values is \fBNULL\fP.
 .PP
 does not return an error if either of the parameters of \fBwattr_get\fP
 used for retrieving attribute or color-pair values is \fBNULL\fP.
 .PP

-Functions with a "mv" prefix first perform a cursor movement using
+Functions with a \*(``mv\*('' prefix first perform a cursor movement using

 \fBwmove\fP, and return an error if the position is outside the window,
 or if the window pointer is null.
 .\" ---------------------------------------------------------------------------
 .SH SEE ALSO
 .na
 \fBwmove\fP, and return an error if the position is outside the window,
 or if the window pointer is null.
 .\" ---------------------------------------------------------------------------
 .SH SEE ALSO
 .na

-\fBcurses\fR(3X),
-\fBcurs_addch\fR(3X),
-\fBcurs_addstr\fR(3X),
-\fBcurs_bkgd\fR(3X),
-\fBcurs_printw\fR(3X),
-\fBcurs_variables\fR(3X)
+\fBcurses\fP(3X),
+\fBcurs_addch\fP(3X),
+\fBcurs_addstr\fP(3X),
+\fBcurs_bkgd\fP(3X),
+\fBcurs_printw\fP(3X),
+\fBcurs_variables\fP(3X)