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gerrit.omnirom.org / android_external_libncurses / b2cef93693cf7cfd01098c9b69603c90f0f4b803 / . / doc / html / man / curs_bkgd.3x.html
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Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]1<!--
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Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]29 * @Id: curs_bkgd.3x,v 1.23 2015/07/21 00:11:05 tom Exp @
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]30-->
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]31<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]32<HTML>
33<HEAD>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]34<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
35<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]36<TITLE>curs_bkgd 3x</TITLE>
37<link rev=made href="mailto:bug-ncurses@gnu.org">
38<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
39</HEAD>
40<BODY>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]41<H1 class="no-header">curs_bkgd 3x</H1>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]42<PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]43<STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG> <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
44
45
46
47
48</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]49<H2><a name="h2-NAME">NAME</a></H2><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]50 <STRONG>bkgdset</STRONG>, <STRONG>wbkgdset</STRONG>, <STRONG>bkgd</STRONG>, <STRONG>wbkgd</STRONG>, <STRONG>getbkgd</STRONG> - <STRONG>curses</STRONG> window
51 background manipulation routines
52
53
54</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]55<H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]56 <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
57
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]58 <STRONG>void</STRONG> <STRONG>bkgdset(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
59 <STRONG>void</STRONG> <STRONG>wbkgdset(WINDOW</STRONG> <STRONG>*</STRONG><EM>win,</EM> <EM>chtype</EM> <EM>ch</EM><STRONG>);</STRONG>
60 <STRONG>int</STRONG> <STRONG>bkgd(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
61 <STRONG>int</STRONG> <STRONG>wbkgd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
62 <STRONG>chtype</STRONG> <STRONG>getbkgd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</STRONG>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]63
64
65</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]66<H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
67
68</PRE>
69<H3><a name="h3-bkgdset">bkgdset</a></H3><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]70 The <STRONG>bkgdset</STRONG> and <STRONG>wbkgdset</STRONG> routines manipulate the back-
71 ground of the named window. The window background is a
72 <STRONG>chtype</STRONG> consisting of any combination of attributes (i.e.,
73 rendition) and a character. The attribute part of the
74 background is combined (OR'ed) with all non-blank charac-
75 ters that are written into the window with <STRONG>waddch</STRONG>. Both
76 the character and attribute parts of the background are
77 combined with the blank characters. The background
78 becomes a property of the character and moves with the
79 character through any scrolling and insert/delete
80 line/character operations.
81
82 To the extent possible on a particular terminal, the
83 attribute part of the background is displayed as the
84 graphic rendition of the character put on the screen.
85
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]86
87</PRE>
88<H3><a name="h3-bkgd">bkgd</a></H3><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]89 The <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> functions set the background property
90 of the current or specified window and then apply this
91 setting to every character position in that window:
92
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]93 <STRONG>o</STRONG> The rendition of every character on the screen is
94 changed to the new background rendition.
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]95
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]96 <STRONG>o</STRONG> Wherever the former background character appears, it
97 is changed to the new background character.
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]98
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]99
100</PRE>
101<H3><a name="h3-getbkgd">getbkgd</a></H3><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]102 The <STRONG>getbkgd</STRONG> function returns the given window's current
103 background character/attribute pair.
104
105
106</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]107<H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]108 The routines <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> return the integer <STRONG>OK</STRONG>. The
109 SVr4.0 manual says "or a non-negative integer if <STRONG>immedok</STRONG>
110 is set", but this appears to be an error.
111
112
113</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]114<H2><a name="h2-NOTES">NOTES</a></H2><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]115 Note that <STRONG>bkgdset</STRONG> and <STRONG>bkgd</STRONG> may be macros.
116
117
118</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]119<H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]120 These functions are described in the XSI Curses standard,
121 Issue 4. It specifies that <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> return <STRONG>ERR</STRONG> on
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]122 failure, but gives no failure conditions.
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]123
124
125</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]126<H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
127 <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>, <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>, <STRONG>curs_out-</STRONG>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]128 <STRONG><A HREF="curs_outopts.3x.html">opts(3x)</A></STRONG>
129
130
131
132 <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
133</PRE>
Steve Kondikae271bc2015-11-15 02:50:53 +0100[diff] [blame]134<div class="nav">
135<ul>
136<li><a href="#h2-NAME">NAME</a></li>
137<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
138<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
139<ul>
140<li><a href="#h3-bkgdset">bkgdset</a></li>
141<li><a href="#h3-bkgd">bkgd</a></li>
142<li><a href="#h3-getbkgd">getbkgd</a></li>
143</ul>
144</li>
145<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
146<li><a href="#h2-NOTES">NOTES</a></li>
147<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
148<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
149</ul>
150</div>
Amit Daniel Kachhape6a01f52011-07-20 11:45:59 +0530[diff] [blame]151</BODY>
152</HTML>