ncurses 6.2 - patch 20210109

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

diff --git a/man/default_colors.3x b/man/default_colors.3x
index b8de7b817282e2255186be37f2588615a17fa8e1..c1d1bf706724b34d8780bc8c35a91844204408e0 100644 (file)
--- a/man/default_colors.3x
+++ b/man/default_colors.3x
@@ -1,5 +1,6 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998-2006,2010 Free Software Foundation, Inc.              *
+.\" Copyright 2018-2019,2020 Thomas E. Dickey                                *
+.\" Copyright 2000-2011,2016 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            *


@@ -28,8 +29,12 @@
 .\"
 .\" Author: Thomas E. Dickey 1997,1999,2000,2005
 .\"
 .\"
 .\" Author: Thomas E. Dickey 1997,1999,2000,2005
 .\"

-.\" $Id: default_colors.3x,v 1.22 2010/12/04 18:40:45 tom Exp $
+.\" $Id: default_colors.3x,v 1.31 2020/12/19 21:38:37 tom Exp $

 .TH default_colors 3X ""
 .TH default_colors 3X ""

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

 .SH NAME
 \fBuse_default_colors\fR,
 \fBassume_default_colors\fR \- use terminal's default colors
 .SH NAME
 \fBuse_default_colors\fR,
 \fBassume_default_colors\fR \- use terminal's default colors


@@ -38,12 +43,9 @@
 .sp
 \fBint use_default_colors(void);\fP
 .br
 .sp
 \fBint use_default_colors(void);\fP
 .br

-\fBint assume_default_colors(int fg, int bg);\fP
+\fBint assume_default_colors(int \fP\fIfg\fP\fB, int \fP\fIbg\fP\fB);\fP

 .SH DESCRIPTION
 .SH DESCRIPTION

-The
-.I use_default_colors()
-and
-.I assume_default_colors()
+The \fBuse_default_colors\fP and \fBassume_default_colors\fP

 functions are extensions to the curses library.
 They are used with terminals that support ISO 6429 color, or equivalent.
 These terminals allow the application to reset color to an unspecified
 functions are extensions to the curses library.
 They are used with terminals that support ISO 6429 color, or equivalent.
 These terminals allow the application to reset color to an unspecified


@@ -55,21 +57,21 @@ Some applications are designed to work with the default background,
 using colors only for text.
 For example, there are several implementations of the \fBls\fP program
 which use colors to denote different file types or permissions.
 using colors only for text.
 For example, there are several implementations of the \fBls\fP program
 which use colors to denote different file types or permissions.

-These "color ls" programs do not necessarily modify the background color,
-typically using only the \fIsetaf\fP terminfo capability to set the
+These \*(``color ls\*('' programs do not necessarily modify the background color,
+typically using only the \fBsetaf\fP terminfo capability to set the

 foreground color.
 Full-screen applications that use default colors can achieve similar
 visual effects.
 .PP
 foreground color.
 Full-screen applications that use default colors can achieve similar
 visual effects.
 .PP

-The first function,
-.I use_default_colors()
+The first function, \fBuse_default_colors\fP

 tells the curses library to assign terminal default
 tells the curses library to assign terminal default

-foreground/background colors to color number \-1. So init_pair(x,COLOR_RED,\-1)
-will initialize pair x as red on default background and init_pair(x,\-1,COLOR_BLUE) will
+foreground/background colors to color number \-1.
+So init_pair(x,COLOR_RED,\-1)
+will initialize pair x as red on default background
+and init_pair(x,\-1,COLOR_BLUE) will

 initialize pair x as default foreground on blue.
 .PP
 initialize pair x as default foreground on blue.
 .PP

-The other,
-.I assume_default_colors()
+The other, \fBassume_default_colors\fP

 is a refinement which tells which colors to paint for color pair 0.
 This function recognizes a special color number \-1,
 which denotes the default terminal color.
 is a refinement which tells which colors to paint for color pair 0.
 This function recognizes a special color number \-1,
 which denotes the default terminal color.


@@ -85,34 +87,36 @@ The following are equivalent:
 These are ncurses extensions.
 For other curses implementations, color
 number \-1 does not mean anything, just as for ncurses before a
 These are ncurses extensions.
 For other curses implementations, color
 number \-1 does not mean anything, just as for ncurses before a

-successful call of \fIuse_default_colors()\fP or \fIassume_default_colors()\fP.
+successful call of \fBuse_default_colors\fP or \fBassume_default_colors\fP.

 .PP
 Other curses implementations do not allow an application to modify color pair 0.
 They assume that the background is COLOR_BLACK,
 but do not ensure that the color pair 0 is painted to match the
 assumption.
 If your application does not use either
 .PP
 Other curses implementations do not allow an application to modify color pair 0.
 They assume that the background is COLOR_BLACK,
 but do not ensure that the color pair 0 is painted to match the
 assumption.
 If your application does not use either

-.I use_default_colors()
+.B use_default_colors

 or
 or

-.I assume_default_colors()
+.B assume_default_colors

 ncurses will paint a white foreground (text) with black background
 for color pair 0.
 .SH RETURN VALUE
 ncurses will paint a white foreground (text) with black background
 for color pair 0.
 .SH RETURN VALUE

-These functions return the integer \fBERR\fP upon failure and \fBOK\fP on success.
+These functions return the integer \fBERR\fP upon failure
+and \fBOK\fP on success.

 They will fail if either the terminal does not support
 They will fail if either the terminal does not support

-the \fIorig_pair\fP or \fIorig_colors\fP capability.
-If the \fIinitialize_pair\fP capability is found, this causes an
+the \fBorig_pair\fP or \fBorig_colors\fP capability.
+If the \fBinitialize_pair\fP capability is not found, this causes an

 error as well.
 .SH NOTES
 Associated with this extension, the \fBinit_pair\fR function accepts
 negative arguments to specify default foreground or background colors.
 .PP
 error as well.
 .SH NOTES
 Associated with this extension, the \fBinit_pair\fR function accepts
 negative arguments to specify default foreground or background colors.
 .PP

-The \fIuse_default_colors()\fP function was added to support \fIded\fP.
+The \fBuse_default_colors\fP function was added to support \fIded\fP.

 This is a full-screen application which uses curses to manage only part
 This is a full-screen application which uses curses to manage only part

-of the screen.  The bottom portion of the screen, which is of adjustable
+of the screen.
+The bottom portion of the screen, which is of adjustable

 size, is left uncolored to display the results from shell commands.
 The top portion of the screen colors filenames using a scheme like the
 size, is left uncolored to display the results from shell commands.
 The top portion of the screen colors filenames using a scheme like the

-"color ls" programs.
+\*(``color ls\*('' programs.

 Attempting to manage the background color of the screen for this application
 would give unsatisfactory results for a variety of reasons.
 This extension was devised after
 Attempting to manage the background color of the screen for this application
 would give unsatisfactory results for a variety of reasons.
 This extension was devised after


@@ -120,19 +124,21 @@ noting that color xterm (and similar programs) provides a background color
 which does not necessarily correspond to any of the ANSI colors.
 While a special terminfo entry could be constructed using nine colors,
 there was no mechanism provided within curses to account for the related
 which does not necessarily correspond to any of the ANSI colors.
 While a special terminfo entry could be constructed using nine colors,
 there was no mechanism provided within curses to account for the related

-\fIorig_pair\fP and \fIback_color_erase\fP capabilities.
+\fBorig_pair\fP and \fBback_color_erase\fP capabilities.

 .PP
 .PP

-The \fIassume_default_colors()\fP function was added to solve
+The \fBassume_default_colors\fP function was added to solve

 a different problem: support for applications which would use
 environment variables and other configuration to bypass curses'
 notion of the terminal's default colors, setting specific values.
 .SH PORTABILITY
 a different problem: support for applications which would use
 environment variables and other configuration to bypass curses'
 notion of the terminal's default colors, setting specific values.
 .SH PORTABILITY

-These routines are specific to ncurses.  They were not supported on
-Version 7, BSD or System V implementations.  It is recommended that
+These routines are specific to ncurses.
+They were not supported on
+Version 7, BSD or System V implementations.
+It is recommended that

 any code depending on them be conditioned using NCURSES_VERSION.
 .SH SEE ALSO
 any code depending on them be conditioned using NCURSES_VERSION.
 .SH SEE ALSO

-\fBcurs_color\fR(3X),
-\fBded\fP(1).
+\fBded\fP(1),
+\fBcurs_color\fR(3X).

 .SH AUTHOR
 Thomas Dickey (from an analysis of the requirements for color xterm
 for XFree86 3.1.2C, February 1996).
 .SH AUTHOR
 Thomas Dickey (from an analysis of the requirements for color xterm
 for XFree86 3.1.2C, February 1996).