doc/html/man/curs_bkgd.3x.html

   1 <!--
   2   ****************************************************************************
   3   * Copyright (c) 1998-2010,2015 Free Software Foundation, Inc.              *
   4   *                                                                          *
   5   * Permission is hereby granted, free of charge, to any person obtaining a  *
   6   * copy of this software and associated documentation files (the            *
   7   * "Software"), to deal in the Software without restriction, including      *
   8   * without limitation the rights to use, copy, modify, merge, publish,      *
   9   * distribute, distribute with modifications, sublicense, and/or sell       *
  10   * copies of the Software, and to permit persons to whom the Software is    *
  11   * furnished to do so, subject to the following conditions:                 *
  12   *                                                                          *
  13   * The above copyright notice and this permission notice shall be included  *
  14   * in all copies or substantial portions of the Software.                   *
  15   *                                                                          *
  16   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  17   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  18   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  19   * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  20   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  21   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  22   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  23   *                                                                          *
  24   * Except as contained in this notice, the name(s) of the above copyright   *
  25   * holders shall not be used in advertising or otherwise to promote the     *
  26   * sale, use or other dealings in this Software without prior written       *
  27   * authorization.                                                           *
  28   ****************************************************************************
  29   * @Id: curs_bkgd.3x,v 1.24 2015/11/21 01:53:42 tom Exp @
  30 -->
  31 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
  32 <HTML>
  33 <HEAD>
  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">
  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>
  41 <H1 class="no-header">curs_bkgd 3x</H1>
  42 <PRE>
  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><H2><a name="h2-NAME">NAME</a></H2><PRE>
  49        <STRONG>bkgdset</STRONG>,  <STRONG>wbkgdset</STRONG>,  <STRONG>bkgd</STRONG>,  <STRONG>wbkgd</STRONG>, <STRONG>getbkgd</STRONG> - <STRONG>curses</STRONG> window
  50        background manipulation routines
  51
  52
  53 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
  54        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  55
  56        <STRONG>void</STRONG> <STRONG>bkgdset(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
  57        <STRONG>void</STRONG> <STRONG>wbkgdset(WINDOW</STRONG> <STRONG>*</STRONG><EM>win,</EM> <EM>chtype</EM> <EM>ch</EM><STRONG>);</STRONG>
  58        <STRONG>int</STRONG> <STRONG>bkgd(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
  59        <STRONG>int</STRONG> <STRONG>wbkgd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
  60        <STRONG>chtype</STRONG> <STRONG>getbkgd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</STRONG>
  61
  62
  63 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
  64
  65 </PRE><H3><a name="h3-bkgdset">bkgdset</a></H3><PRE>
  66        The <STRONG>bkgdset</STRONG> and <STRONG>wbkgdset</STRONG>  routines  manipulate  the  back-
  67        ground  of  the  named window.  The window background is a
  68        <STRONG>chtype</STRONG> consisting of any combination of attributes  (i.e.,
  69        rendition)  and  a  character.   The attribute part of the
  70        background is combined (OR'ed) with all non-blank  charac-
  71        ters  that  are written into the window with <STRONG>waddch</STRONG>.  Both
  72        the character and attribute parts of  the  background  are
  73        combined   with  the  blank  characters.   The  background
  74        becomes a property of the character  and  moves  with  the
  75        character   through   any   scrolling   and  insert/delete
  76        line/character operations.
  77
  78        To the extent  possible  on  a  particular  terminal,  the
  79        attribute  part  of  the  background  is  displayed as the
  80        graphic rendition of the character put on the screen.
  81
  82
  83 </PRE><H3><a name="h3-bkgd">bkgd</a></H3><PRE>
  84        The <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> functions set the  background  property
  85        of  the  current  or  specified window and then apply this
  86        setting to every character position in that window:
  87
  88        <STRONG>o</STRONG>   The rendition of every  character  on  the  screen  is
  89            changed to the new background rendition.
  90
  91        <STRONG>o</STRONG>   Wherever  the  former background character appears, it
  92            is changed to the new background character.
  93
  94
  95 </PRE><H3><a name="h3-getbkgd">getbkgd</a></H3><PRE>
  96        The <STRONG>getbkgd</STRONG> function returns the  given  window's  current
  97        background character/attribute pair.
  98
  99
 100 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
 101        The  routines  <STRONG>bkgd</STRONG>  and <STRONG>wbkgd</STRONG> return the integer <STRONG>OK</STRONG>.  The
 102        SVr4.0 manual says "or a non-negative integer  if  <STRONG>immedok</STRONG>
 103        is set", but this appears to be an error.
 104
 105
 106 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 107        Note that <STRONG>bkgdset</STRONG> and <STRONG>bkgd</STRONG> may be macros.
 108
 109
 110 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
 111        These  functions are described in the XSI Curses standard,
 112        Issue 4.  It specifies that <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> return  <STRONG>ERR</STRONG>  on
 113        failure, but gives no failure conditions.
 114
 115
 116 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 117        <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>
 118        <STRONG><A HREF="curs_outopts.3x.html">opts(3x)</A></STRONG>
 119
 120
 121
 122                                                           <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
 123 </PRE>
 124 <div class="nav">
 125 <ul>
 126 <li><a href="#h2-NAME">NAME</a></li>
 127 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 128 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
 129 <ul>
 130 <li><a href="#h3-bkgdset">bkgdset</a></li>
 131 <li><a href="#h3-bkgd">bkgd</a></li>
 132 <li><a href="#h3-getbkgd">getbkgd</a></li>
 133 </ul>
 134 </li>
 135 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
 136 <li><a href="#h2-NOTES">NOTES</a></li>
 137 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
 138 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
 139 </ul>
 140 </div>
 141 </BODY>
 142 </HTML>