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<H1><A NAME="SECTION00990000000000000000">8.9 Clear Window and Lines</A></H1>
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<UL><LI> <TT>int erase()</TT> <A NAME="fun_erase"> </A><BR>
<TT>int werase(win)</TT> <A NAME="fun_werase"> </A><BR>
<B>werase(...)</B> and <B>erase()</B> will copy blanks to every position
on the window <TT>win</TT> or . For instance, when you set
color attributes to a window and call <B>werase()</B> the window would be
colored. I had some problems with COLOR_PAIRS when I defined other
attributes then black on white so I wrote my own erase function (this is
a low level access to the WINDOW structure):
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The problem is, that ncurses sometimes makes no use of the window
attributes when
blanking the screen. For instance, in _clrtoeol.c, is
BLANK defined as
<P><P>
so that the other window attributes get lost while the line is
erased.<LI> <TT>int clear()</TT> <A NAME="fun_clear"> </A><BR>
<TT>int wclear(win)</TT> <A NAME="fun_wclear"> </A><BR>
The same as <B>erase()</B>, but will also set <B>clearok()</B> (the screen
will be cleared with the next refresh).<LI> <TT>int clrtobot()</TT> <A NAME="fun_clrtobot"> </A><BR>
<TT>int wclrtobot(win)</TT> <A NAME="fun_wclrtobot"> </A><BR>
Clearing the current cursor line (start is one character right from the
cursor) and the line below the cursor.<LI> <TT>int clrtoeol()</TT> <A NAME="fun_clrtoeol"> </A><BR>
<TT>int wclrtoeol(win)</TT> <A NAME="fun_wclrtoeol"> </A><BR>
Clear the current line right from the cursor up to its end.
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<I>Converted on: <BR>
Fri Mar 29 14:43:04 EST 1996</I>
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