doc/html/man/curs_bkgrnd.3x.html

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  34 <TITLE>curs_bkgrnd 3x</TITLE>
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  39 <H1>curs_bkgrnd 3x</H1>
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  41 <PRE>
  42 <!-- Manpage converted by man2html 3.0.1 -->
  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>NAME</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>SYNOPSIS</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>DESCRIPTION</H2><PRE>
  69        The <STRONG>bkgrndset</STRONG> and <STRONG>wbkgrndset</STRONG> routines manipulate the back-
  70        ground of the named window.  The window  background  is  a
  71        <STRONG>cchar_t</STRONG> consisting of any combination of attributes (i.e.,
  72        rendition) and a complex character.  The attribute part of
  73        the  background  is  combined  (OR'ed)  with all non-blank
  74        characters that are written into the window  with  <STRONG>waddch</STRONG>.
  75        Both  the  character and attribute parts of the background
  76        are combined with the blank  characters.   The  background
  77        becomes  a  property  of  the character and moves with the
  78        character  through   any   scrolling   and   insert/delete
  79        line/character operations.
  80
  81        To  the  extent  possible  on  a  particular terminal, the
  82        attribute part of  the  background  is  displayed  as  the
  83        graphic rendition of the character put on the screen.
  84
  85        The  <STRONG>bkgrnd</STRONG> and <STRONG>wbkgrnd</STRONG> functions set the background prop-
  86        erty of the current or specified  window  and  then  apply
  87        this setting to every character position in that window:
  88
  89               The  rendition  of every character on the screen is
  90               changed to the new background rendition.
  91
  92               Wherever the former background  character  appears,
  93               it is changed to the new background character.
  94
  95        The  <STRONG>getbkgrnd</STRONG> function returns the given window's current
  96        background character/attribute pair via the <STRONG>wch</STRONG> pointer.
  97
  98
  99 </PRE>
 100 <H2>NOTES</H2><PRE>
 101        Note that <STRONG>bkgrnd</STRONG>, <STRONG>bkgrndset</STRONG>, and <STRONG>getbkgrnd</STRONG> may be  macros.
 102
 103
 104 </PRE>
 105 <H2>RETURN VALUES</H2><PRE>
 106        The  <STRONG>bkgrndset</STRONG>  and  <STRONG>wbkgrndset</STRONG>  routines  do not return a
 107        value.
 108
 109        Upon successful completion, the other functions return <STRONG>OK</STRONG>.
 110        Otherwise,  they  return  <STRONG>ERR</STRONG>.   A  null window pointer is
 111        treated as an error.
 112
 113
 114 </PRE>
 115 <H2>SEE ALSO</H2><PRE>
 116        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_bkgd.3x.html">curs_bkgd(3x)</A></STRONG>
 117
 118
 119
 120                                                         <STRONG><A HREF="curs_bkgrnd.3x.html">curs_bkgrnd(3x)</A></STRONG>
 121 </PRE>
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