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[ncurses.git] / doc / html / man / curs_touch.3x.html
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+  * @Id: curs_touch.3x,v 1.16 2015/12/05 23:43:00 tom Exp @
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+<TITLE>curs_touch 3x</TITLE>
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+<H1 class="no-header">curs_touch 3x</H1>
 <PRE>
 <PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>                                           <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
 
 
-</PRE>
-<H2>NAME</H2><PRE>
-       <B>touchwin</B>, <B>touchline</B>, <B>untouchwin</B>, <B>wtouchln</B>, <B>is_linetouched</B>,
-       <B>is_wintouched</B> - <B>curses</B> refresh control routines
 
 
 
 
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
-       <B>#include</B> <B>&lt;curses.h&gt;</B>
-       <B>int</B> <B>touchwin(WINDOW</B> <B>*win);</B>
-       <B>int</B> <B>touchline(WINDOW</B> <B>*win,</B> <B>int</B> <B>start,</B> <B>int</B> <B>count);</B>
-       <B>int</B> <B>untouchwin(WINDOW</B> <B>*win);</B>
-       <B>int</B> <B>wtouchln(WINDOW</B> <B>*win,</B> <B>int</B> <B>y,</B> <B>int</B> <B>n,</B> <B>int</B> <B>changed);</B>
-       <B>bool</B> <B>is_linetouched(WINDOW</B> <B>*win,</B> <B>int</B> <B>line);</B>
-       <B>bool</B> <B>is_wintouched(WINDOW</B> <B>*win);</B>
 
 
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+       <STRONG>touchwin</STRONG>, <STRONG>touchline</STRONG>, <STRONG>untouchwin</STRONG>, <STRONG>wtouchln</STRONG>, <STRONG>is_linetouched</STRONG>,
+       <STRONG>is_wintouched</STRONG> - <STRONG>curses</STRONG> refresh control routines
 
 
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
-       The <B>touchwin</B> and <B>touchline</B> routines throw away  all  opti-
+
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+       <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
+       <STRONG>int</STRONG> <STRONG>touchwin(WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>touchline(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>start,</STRONG> <STRONG>int</STRONG> <STRONG>count);</STRONG>
+       <STRONG>int</STRONG> <STRONG>untouchwin(WINDOW</STRONG> <STRONG>*win);</STRONG>
+       <STRONG>int</STRONG> <STRONG>wtouchln(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>n,</STRONG> <STRONG>int</STRONG> <STRONG>changed);</STRONG>
+       <STRONG>bool</STRONG> <STRONG>is_linetouched(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>line);</STRONG>
+       <STRONG>bool</STRONG> <STRONG>is_wintouched(WINDOW</STRONG> <STRONG>*win);</STRONG>
+
+
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+       The <STRONG>touchwin</STRONG> and <STRONG>touchline</STRONG> routines throw away  all  opti-
        mization  information about which parts of the window have
        been touched, by pretending that  the  entire  window  has
        been  drawn  on.   This  is sometimes necessary when using
        overlapping windows, since a change to one window  affects
        the other window, but the records of which lines have been
        changed in the other window do  not  reflect  the  change.
        mization  information about which parts of the window have
        been touched, by pretending that  the  entire  window  has
        been  drawn  on.   This  is sometimes necessary when using
        overlapping windows, since a change to one window  affects
        the other window, but the records of which lines have been
        changed in the other window do  not  reflect  the  change.
-       The  routine <B>touchline</B> only pretends that <I>count</I> lines have
-       been changed, beginning with line <I>start</I>.
+       The  routine <STRONG>touchline</STRONG> only pretends that <EM>count</EM> lines have
+       been changed, beginning with line <EM>start</EM>.
 
 
-       The <B>untouchwin</B> routine marks all lines in  the  window  as
-       unchanged since the last call to <B>wrefresh</B>.
+       The <STRONG>untouchwin</STRONG> routine marks all lines in  the  window  as
+       unchanged since the last call to <STRONG>wrefresh</STRONG>.
 
 
-       The <B>wtouchln</B> routine makes <I>n</I> lines in the window, starting
-       at line <I>y</I>, look as if they have (<I>changed</I><B>=1</B>)  or  have  not
-       (<I>changed</I><B>=0</B>)  been changed since the last call to <B>wrefresh</B>.
+       The <STRONG>wtouchln</STRONG> routine makes <EM>n</EM> lines in the window, starting
+       at line <EM>y</EM>, look as if they have (<EM>changed</EM><STRONG>=1</STRONG>)  or  have  not
+       (<EM>changed</EM><STRONG>=0</STRONG>) been changed since the last call to <STRONG>wrefresh</STRONG>.
 
 
-       The <B>is_linetouched</B> and <B>is_wintouched</B> routines return  <B>TRUE</B>
-       if  the  specified line/window was modified since the last
-       call to <B>wrefresh</B>; otherwise they return <B>FALSE</B>.   In  addi-
-       tion,  <B>is_linetouched</B> returns <B>ERR</B> if <I>line</I> is not valid for
+       The  <STRONG>is_linetouched</STRONG> and <STRONG>is_wintouched</STRONG> routines return <STRONG>TRUE</STRONG>
+       if the specified line/window was modified since  the  last
+       call  to  <STRONG>wrefresh</STRONG>; otherwise they return <STRONG>FALSE</STRONG>.  In addi-
+       tion, <STRONG>is_linetouched</STRONG> returns <STRONG>ERR</STRONG> if <EM>line</EM> is not valid  for
        the given window.
 
 
        the given window.
 
 
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
-       All routines return the integer <B>ERR</B> upon  failure  and  an
-       integer  value  other than <B>ERR</B> upon successful completion,
-       unless otherwise noted in the preceding  routine  descrip-
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+       All  routines  return  the integer <STRONG>ERR</STRONG> upon failure and an
+       integer value other than <STRONG>ERR</STRONG> upon  successful  completion,
+       unless  otherwise  noted in the preceding routine descrip-
        tions.
 
        tions.
 
+       X/Open does not define any error conditions.  In this  im-
+       plementation
 
 
-</PRE>
-<H2>PORTABILITY</H2><PRE>
+              <STRONG>is_linetouched</STRONG>
+                   returns  an  error  if  the  window pointer is
+                   null, or if the line  number  is  outside  the
+                   window.   Note  that ERR is distinct from <STRONG>TRUE</STRONG>
+                   and <STRONG>FALSE</STRONG>, which are the normal return  values
+                   of this function.
+
+              <STRONG>wtouchln</STRONG>
+                   returns  an  error  if  the  window pointer is
+                   null, or if the line  number  is  outside  the
+                   window.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
        The  XSI  Curses  standard,  Issue 4 describes these func-
        tions.
 
        Some historic curses implementations had,  as  an  undocu-
        mented  feature,  the  ability  to  do  the  equivalent of
        The  XSI  Curses  standard,  Issue 4 describes these func-
        tions.
 
        Some historic curses implementations had,  as  an  undocu-
        mented  feature,  the  ability  to  do  the  equivalent of
-       <B>clearok(...,</B> <B>1)</B> by saying <B>touchwin(stdscr)</B>  or  <B>clear(std-</B>
-       <B>scr)</B>.  This will not work under ncurses.
-
-
-</PRE>
-<H2>NOTES</H2><PRE>
-       Note that all routines except <B>wtouchln</B> may be macros.
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
-       <B><A HREF="ncurses.3x.html">curses(3x)</A></B>, <B><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></B>.
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+       <STRONG>clearok(...,</STRONG> <STRONG>1)</STRONG> by saying <STRONG>touchwin(stdscr)</STRONG>  or  <STRONG>clear(std-</STRONG>
+       <STRONG>scr)</STRONG>.  This will not work under ncurses.
 
 
 
 
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
+       Note that all routines except <STRONG>wtouchln</STRONG> may be macros.
 
 
 
 
+</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_refresh.3x.html">curs_refresh(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>.
 
 
 
 
 
 
+                                                         <STRONG><A HREF="curs_touch.3x.html">curs_touch(3x)</A></STRONG>
 </PRE>
 </PRE>
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-<ADDRESS>
-Man(1) output converted with
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+<div class="nav">
+<ul>
+<li><a href="#h2-NAME">NAME</a></li>
+<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
+<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-NOTES">NOTES</a></li>
+<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
+</ul>
+</div>
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