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  41 <H1 class="no-header">curs_bkgrnd 3x</H1>
  42 <PRE>
  43 <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>                                         <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
  44
  45
  46
  47
  48 </PRE>
  49 <H2><a name="h2-NAME">NAME</a></H2><PRE>
  50        <STRONG>bkgrnd</STRONG>,  <STRONG>wbkgrnd</STRONG>,  <STRONG>bkgrndset</STRONG>, <STRONG>wbkgrndset</STRONG>, <STRONG>getbkgrnd</STRONG>, <STRONG>wget-</STRONG>
  51        <STRONG>bkgrnd</STRONG> - <STRONG>curses</STRONG>  window  complex  background  manipulation
  52        routines
  53
  54
  55 </PRE>
  56 <H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
  57        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  58
  59        <STRONG>int</STRONG> <STRONG>bkgrnd(</STRONG> <STRONG>const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>);</STRONG>
  60        <STRONG>int</STRONG> <STRONG>wbkgrnd(</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>);</STRONG>
  61        <STRONG>void</STRONG> <STRONG>bkgrndset(const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM> <STRONG>);</STRONG>
  62        <STRONG>void</STRONG> <STRONG>wbkgrndset(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>);</STRONG>
  63        <STRONG>int</STRONG> <STRONG>getbkgrnd(cchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>);</STRONG>
  64        <STRONG>int</STRONG> <STRONG>wgetbkgrnd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>wch</EM><STRONG>);</STRONG>
  65
  66
  67 </PRE>
  68 <H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
  69
  70 </PRE>
  71 <H3><a name="h3-bkgrndset">bkgrndset</a></H3><PRE>
  72        The <STRONG>bkgrndset</STRONG> and <STRONG>wbkgrndset</STRONG> routines manipulate the back-
  73        ground of the named window.  The window  background  is  a
  74        <STRONG>cchar_t</STRONG> consisting of any combination of attributes (i.e.,
  75        rendition) and a complex character.  The attribute part of
  76        the  background  is  combined  (OR'ed)  with all non-blank
  77        characters that are written into the window  with  <STRONG>waddch</STRONG>.
  78        Both  the  character and attribute parts of the background
  79        are combined with the blank  characters.   The  background
  80        becomes  a  property  of  the character and moves with the
  81        character  through   any   scrolling   and   insert/delete
  82        line/character operations.
  83
  84        To  the  extent  possible  on  a  particular terminal, the
  85        attribute part of  the  background  is  displayed  as  the
  86        graphic rendition of the character put on the screen.
  87
  88
  89 </PRE>
  90 <H3><a name="h3-bkgrnd">bkgrnd</a></H3><PRE>
  91        The  <STRONG>bkgrnd</STRONG> and <STRONG>wbkgrnd</STRONG> functions set the background prop-
  92        erty of the current or specified  window  and  then  apply
  93        this setting to every character position in that window:
  94
  95        <STRONG>o</STRONG>   The  rendition  of  every  character  on the screen is
  96            changed to the new background rendition.
  97
  98        <STRONG>o</STRONG>   Wherever the former background character  appears,  it
  99            is changed to the new background character.
 100
 101
 102 </PRE>
 103 <H3><a name="h3-getbkgrnd">getbkgrnd</a></H3><PRE>
 104        The  <STRONG>getbkgrnd</STRONG> function returns the given window's current
 105        background character/attribute pair via the <STRONG>wch</STRONG> pointer.
 106
 107
 108 </PRE>
 109 <H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 110        Note that <STRONG>bkgrnd</STRONG>, <STRONG>bkgrndset</STRONG>, and <STRONG>getbkgrnd</STRONG> may be macros.
 111
 112
 113 </PRE>
 114 <H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
 115        The <STRONG>bkgrndset</STRONG> and <STRONG>wbkgrndset</STRONG>  routines  do  not  return  a
 116        value.
 117
 118        Upon successful completion, the other functions return <STRONG>OK</STRONG>.
 119        Otherwise, they return <STRONG>ERR</STRONG>.   A  null  window  pointer  is
 120        treated as an error.
 121
 122
 123 </PRE>
 124 <H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 125        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
 126
 127
 128
 129                                                         <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
 130 </PRE>
 131 <div class="nav">
 132 <ul>
 133 <li><a href="#h2-NAME">NAME</a></li>
 134 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 135 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
 136 <ul>
 137 <li><a href="#h3-bkgrndset">bkgrndset</a></li>
 138 <li><a href="#h3-bkgrnd">bkgrnd</a></li>
 139 <li><a href="#h3-getbkgrnd">getbkgrnd</a></li>
 140 </ul>
 141 </li>
 142 <li><a href="#h2-NOTES">NOTES</a></li>
 143 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
 144 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
 145 </ul>
 146 </div>
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