X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=man%2Fdefault_colors.3x;h=194abb1ccda5634c1be26cd8f4c8d98fa32854b1;hp=7262864751935fce09951767bd891ee78f832259;hb=7884aa084f9440fd964f14fe31853a5f85db5104;hpb=c3b21f65a2687f3894a0d3217006c23f162c893a diff --git a/man/default_colors.3x b/man/default_colors.3x index 72628647..194abb1c 100644 --- a/man/default_colors.3x +++ b/man/default_colors.3x @@ -1,5 +1,6 @@ .\"*************************************************************************** -.\" Copyright (c) 1998-2011,2016 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 * @@ -28,8 +29,12 @@ .\" .\" Author: Thomas E. Dickey 1997,1999,2000,2005 .\" -.\" $Id: default_colors.3x,v 1.25 2016/10/15 17:16:48 tom Exp $ +.\" $Id: default_colors.3x,v 1.30 2020/10/24 09:52:16 tom Exp $ .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 @@ -38,7 +43,7 @@ .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 The \fBuse_default_colors\fP and \fBassume_default_colors\fP functions are extensions to the curses library. @@ -52,7 +57,7 @@ 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. -These "color ls" programs do not necessarily modify the background color, +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 @@ -60,8 +65,10 @@ visual effects. .PP The first function, \fBuse_default_colors\fP 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 The other, \fBassume_default_colors\fP @@ -93,7 +100,8 @@ or 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 the \fBorig_pair\fP or \fBorig_colors\fP capability. If the \fBinitialize_pair\fP capability is not found, this causes an @@ -104,10 +112,11 @@ negative arguments to specify default foreground or background colors. .PP 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 -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 -"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 @@ -122,8 +131,10 @@ 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 \fBcurs_color\fR(3X),