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+<H1 class="no-header">curs_touch 3X</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
-
-</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><curses.h></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>DESCRIPTION</H2><PRE>
- The <B>touchwin</B> and <B>touchline</B> 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.
- The routine <B>touchline</B> only pretends that <I>count</I> lines have
- been changed, beginning with line <I>start</I>.
-
- The <B>untouchwin</B> routine marks all lines in the window as
- unchanged since the last call to <B>wrefresh</B>.
-
- 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 <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 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-
- tions.
-
-
-</PRE>
-<H2>PORTABILITY</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
- <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>.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+<B><A HREF="curs_touch.3X.html">curs_touch(3X)</A></B> <B><A HREF="curs_touch.3X.html">curs_touch(3X)</A></B>
+</PRE><H2><a name="h2-NAME">NAME</a></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><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+ <B>#include</B> <B><curses.h></B>
+ <B>int</B> <B>touchline(WINDOW</B> <B>*</B><I>win</I><B>,</B> <B>int</B> <I>start</I><B>,</B> <B>int</B> <I>count</I><B>);</B>
+ <B>int</B> <B>touchwin(WINDOW</B> <B>*</B><I>win</I><B>);</B>
+ <B>int</B> <B>wtouchln(WINDOW</B> <B>*</B><I>win</I><B>,</B> <B>int</B> <I>y</I><B>,</B> <B>int</B> <I>n</I><B>,</B> <B>int</B> <I>changed</I><B>);</B>
+ <B>int</B> <B>untouchwin(WINDOW</B> <B>*</B><I>win</I><B>);</B>
+ <B>bool</B> <B>is_linetouched(WINDOW</B> <B>*</B><I>win</I><B>,</B> <B>int</B> <I>line</I><B>);</B>
+ <B>bool</B> <B>is_wintouched(WINDOW</B> <B>*</B><I>win</I><B>);</B>
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+ The <B>touchwin</B> and <B>touchline</B> routines throw away all optimization infor-
+ mation 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 <B>untouchwin</B> routine marks all lines in the window as unchanged since
+ the last call to <B>wrefresh</B>.
+ 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 <B>is_linetouched</B> and <B>is_wintouched</B> routines return <B>TRUE</B> if the speci-
+ fied line/window was modified since the last call to <B>wrefresh</B>; other-
+ wise they return <B>FALSE</B>. In addition, <B>is_linetouched</B> returns <B>ERR</B> if
+ <I>line</I> is not valid for the given window.
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></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 descriptions.
+ X/Open does not define any error conditions. In this implementation
+ <B>is_linetouched</B>
+ returns an error if the window pointer is null, or if the line
+ number is outside the window.
+ The constant <B>ERR</B> is distinct from <B>TRUE</B> and <B>FALSE</B>, which are the
+ normal return values of this function. Because the function
+ returns a <B>bool</B>, returning <B>ERR</B> (which is neither <B>TRUE</B> nor <B>FALSE</B>)
+ may not be supported by the compiler.
+ To provide error-checking and also match the X/Open function
+ prototype, the <B>ERR</B> is provided by a macro named <B>is_linetouched</B>.
+ The actual function returns <B>FALSE</B> when it detects an error.
+ <B>wtouchln</B>
+ 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>
+ These functions were introduced by SVr4. The Solaris curses header
+ file, for instance, defines both an actual function and macro for each.
+ The macros give the same result as the actual functions. SVr4 curses
+ does not check the window parameter <I>win</I> to ensure that it is not <B>NULL</B>;
+ otherwise this implementation behaves the same as SVr4.
+ The XSI Curses standard, Issue 4 describes these functions, but defines
+ no error conditions.
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
+ All of these routines except <B>wtouchln</B> may be macros.
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <B><A HREF="curses.3X.html">curses(3X)</A></B>, <B><A HREF="curs_refresh.3X.html">curs_refresh(3X)</A></B>, <B><A HREF="curs_variables.3X.html">curs_variables(3X)</A></B>.
+ <B><A HREF="curs_touch.3X.html">curs_touch(3X)</A></B>
</PRE>
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+<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>
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