+++ /dev/null
-<HTML>
-<BODY>
-<PRE>
- <STRONG>erase</STRONG>, <STRONG>werase</STRONG>, <STRONG>clear</STRONG>, <STRONG>wclear</STRONG>, <STRONG>clrtobot</STRONG>, <STRONG>wclrtobot</STRONG>, <STRONG>clr-</STRONG>
- <STRONG>toeol</STRONG>, <STRONG>wclrtoeol</STRONG> - clear all or part of a <STRONG>curses</STRONG> window
-
-
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <STRONG>#</STRONG> <STRONG>include</STRONG> <STRONG><curses.h></STRONG>
-
- <STRONG>int</STRONG> <STRONG>erase(void);</STRONG>
- <STRONG>int</STRONG> <STRONG>werase(WINDOW</STRONG> <STRONG>*win);</STRONG>
- <STRONG>int</STRONG> <STRONG>clear(void);</STRONG>
- <STRONG>int</STRONG> <STRONG>wclear(WINDOW</STRONG> <STRONG>*win);</STRONG>
- <STRONG>int</STRONG> <STRONG>clrtobot(void);</STRONG>
- <STRONG>int</STRONG> <STRONG>wclrtobot(WINDOW</STRONG> <STRONG>*win);</STRONG>
- <STRONG>int</STRONG> <STRONG>clrtoeol(void);</STRONG>
- <STRONG>int</STRONG> <STRONG>wclrtoeol(WINDOW</STRONG> <STRONG>*win);</STRONG>
-
-
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- The <STRONG>erase</STRONG> and <STRONG>werase</STRONG> routines copy blanks to every posi-
- tion in the window, clearing the screen.
-
- The <STRONG>clear</STRONG> and <STRONG>wclear</STRONG> routines are like <STRONG>erase</STRONG> and <STRONG>werase</STRONG>,
- but they also call <STRONG>clearok</STRONG>, so that the screen is cleared
- completely on the next call to <STRONG>wrefresh</STRONG> for that window
- and repainted from scratch.
-
- The <STRONG>clrtobot</STRONG> and <STRONG>wclrtobot</STRONG> routines erase from the cursor
- to the end of screen. That is, they erase all lines below
- the cursor in the window. Also, the current line to the
- right of the cursor, inclusive, is erased.
-
- The <STRONG>clrtoeol</STRONG> and <STRONG>wclrtoeol</STRONG> routines erase the current line
- to the right of the cursor, inclusive, to the end of the
- current line.
-
- Blanks created by erasure have the current background ren-
- dition (as set by <STRONG>wbkgdset</STRONG>) merged into them.
-
-
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- All routines return the integer <STRONG>OK</STRONG>. The SVr4.0 manual
- says "or a non-negative integer if <STRONG>immedok</STRONG> is set", but
- this appears to be an error.
-
-
-</PRE>
-<H2>NOTES</H2><PRE>
- Note that <STRONG>erase</STRONG>, <STRONG>werase</STRONG>, <STRONG>clear</STRONG>, <STRONG>wclear</STRONG>, <STRONG>clrtobot</STRONG>, and <STRONG>clr-</STRONG>
- <STRONG>toeol</STRONG> may be macros.
-
-
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- These functions are described in the XSI Curses standard,
- Issue 4. The standard specifies that they return <STRONG>ERR</STRONG> on
- failure, but specifies no error conditions.
-
- Some historic curses implementations had, as an undocu-
- mented feature, the ability to do the equivalent of
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3X)</A></STRONG>, <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3X)</A></STRONG>, <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3X)</A></STRONG>
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projects / ncurses.git / blobdiff