ncurses 6.1 - patch 20190713
[ncurses.git] / doc / html / man / curs_legacy.3x.html
index 4411a1ff2c763866714cac12192114a97e3ec1e8..1fea49098c6006e09fbc896ec12d20cd8fbe77bb 100644 (file)
@@ -1,6 +1,6 @@
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-  * @Id: curs_legacy.3x,v 1.5 2010/12/04 18:38:55 tom Exp @
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 <TITLE>curs_legacy 3x</TITLE>
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-<H1>curs_legacy 3x</H1>
-<HR>
+<H1 class="no-header">curs_legacy 3x</H1>
 <PRE>
 <PRE>
-<STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>                                         <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>
+<STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>                                                <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>
 
 
 
 
 
 
 
 
-</PRE>
-<H2><a name="h2-NAME">NAME</a></H2><PRE>
-       getattrs  -  get  <STRONG>curses</STRONG>  cursor  and  window coordinates,
-       attributes
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+       curs_legacy - get <STRONG>curses</STRONG> cursor and window coordinates, attributes
 
 
 
 
-</PRE>
-<H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
 
        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
 
-       <STRONG>int</STRONG> <STRONG>getattrs(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getbegx(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getbegy(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getcurx(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getcury(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getmaxx(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getmaxy(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getparx(WINDOW</STRONG> <STRONG>*win);</STRONG>
-       <STRONG>int</STRONG> <STRONG>getpary(WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getattrs(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getbegx(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getbegy(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getcurx(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getcury(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getmaxx(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getmaxy(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getparx(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>getpary(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
 
 
 
 
-</PRE>
-<H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
-       The <STRONG>getbegy</STRONG> and <STRONG>getbegx</STRONG> functions return the same data  as
-       <STRONG>getbegyx</STRONG>.
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+       These  legacy functions are simpler to use than the X/Open Curses func-
+       tions:
 
 
-       The  <STRONG>getcury</STRONG> and <STRONG>getcurx</STRONG> functions return the same data as
-       <STRONG>getyx</STRONG>.
+       <STRONG>o</STRONG>   The <STRONG>getattrs</STRONG> function returns the same attribute data as <STRONG>wattr_get</STRONG>.
 
 
-       The <STRONG>getmaxy</STRONG> and <STRONG>getmaxx</STRONG> functions return the same data  as
-       <STRONG>getmaxyx</STRONG>.
+           However, <STRONG>getattrs</STRONG> returns an integer  (actually  a  <STRONG>chtype</STRONG>),  while
+           <STRONG>wattr_get</STRONG>  returns  the current color pair in a separate parameter.
+           In the wide-character library configuration, color  pairs  may  not
+           fit into a <STRONG>chtype</STRONG>, so <STRONG>wattr_get</STRONG> is the only way to obtain the color
+           information.
 
 
-       The  <STRONG>getpary</STRONG> and <STRONG>getparx</STRONG> functions return the same data as
-       <STRONG>getparyx</STRONG>.
+           Because <STRONG>getattrs</STRONG> returns the attributes in a single  parameter,  it
+           would  not  be possible for an application to distinguish that from
+           <STRONG>ERR</STRONG> (a <EM>-1</EM>).  If the window  parameter  is  null,  <STRONG>getattrs</STRONG>  returns
+           <STRONG>A_NORMAL</STRONG> (zero).
 
 
+       <STRONG>o</STRONG>   The <STRONG>getbegy</STRONG> and <STRONG>getbegx</STRONG> functions return the same data as <STRONG>getbegyx</STRONG>.
 
 
-</PRE>
-<H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
-       These functions return an integer, or ERR  if  the  window
-       parameter is null.
+       <STRONG>o</STRONG>   The <STRONG>getcury</STRONG> and <STRONG>getcurx</STRONG> functions return the same data as <STRONG>getyx</STRONG>.
 
 
+       <STRONG>o</STRONG>   The <STRONG>getmaxy</STRONG> and <STRONG>getmaxx</STRONG> functions return the same data as <STRONG>getmaxyx</STRONG>.
 
 
-</PRE>
-<H2><a name="h2-NOTES">NOTES</a></H2><PRE>
-       All  of  these interfaces are provided as macros and func-
-       tions.  The macros are suppressed (and only the  functions
-       provided)  when  <STRONG>NCURSES_OPAQUE</STRONG>  is defined.  The standard
-       forms such as <STRONG>getyx</STRONG> must be implemented as macros, and (in
-       this implementation) are defined in terms of the functions
-       described here, to avoid reliance on internal  details  of
-       the WINDOW structure.
+       <STRONG>o</STRONG>   The <STRONG>getpary</STRONG> and <STRONG>getparx</STRONG> functions return the same data as <STRONG>getparyx</STRONG>.
 
 
 
 
-</PRE>
-<H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
-       These functions were supported on Version 7, BSD or System
-       V implementations.
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+       Except  as noted, these functions return an integer, or <STRONG>ERR</STRONG> if the win-
+       dow parameter is null.
 
 
 
 
-</PRE>
-<H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
+       All of these interfaces are provided  as  macros  and  functions.   The
+       macros   are   suppressed   (and  only  the  functions  provided)  when
+       <STRONG>NCURSES_OPAQUE</STRONG> is defined.  The standard forms such as  <STRONG>getyx</STRONG>  must  be
+       implemented  as  macros,  and  (in  this implementation) are defined in
+       terms of the functions described here, to avoid  reliance  on  internal
+       details of the WINDOW structure.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+       These  functions were supported on Version 7, BSD or System V implemen-
+       tations.  None of those implementations checked the window parameter.
+
+       The <STRONG>getattrs</STRONG> function and macro are defined to return a (signed)  inte-
+       ger  for  compatibility with those implementations although an unsigned
+       type would have been more appropriate.
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_getyx.3x.html">curs_getyx(3x)</A></STRONG>, <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>
 
 
 
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_getyx.3x.html">curs_getyx(3x)</A></STRONG>, <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>
 
 
 
-                                                        <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>
+                                                               <STRONG><A HREF="curs_legacy.3x.html">curs_legacy(3x)</A></STRONG>
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