xref: /titanic_52/usr/src/man/man3xcurses/clear.3xcurses (revision 6a1af1a67532df169a657cce07140be64bdea084)
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clear 3XCURSES "5 Jun 2002" "SunOS 5.11" "X/Open Curses Library Functions"
NAME
clear, erase, wclear, werase - clear a window
SYNOPSIS

cc [ flag... ] file... -I /usr/xpg4/include  -L  /usr/xpg4/lib \e
 -R  /usr/xpg4/lib  -lcurses  [ library... ]

c89 [ flag... ] file... -lcurses [ library... ]
 
#include <curses.h>

int clear(void);

int erase(void);

int wclear(WINDOW *win);

int werase(WINDOW *win);
DESCRIPTION

The clear() and erase() functions clear stdscr, destroying its previous contents. The wclear() and werase() functions perform the same action, but clear the window specified by win instead of stdscr.

The clear() and wclear() functions also call the clearok() function. This function clears and redraws the entire screen on the next call to refresh(3XCURSES) or wrefresh(3XCURSES) for the window.

The current background character (and attributes) is used to clear the screen.

PARAMETERS

win

Is a pointer to the window that is to be cleared.

ERRORS

OK

Successful completion.

ERR

An error occurred.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityStandard
MT-LevelUnsafe
SEE ALSO

bkgdset(3XCURSES), clearok(3XCURSES), clrtobot(3XCURSES), clrtoeol(3XCURSES), doupdate(3XCURSES), libcurses(3XCURSES), refresh(3XCURSES), wrefresh(3XCURSES), attributes(5), standards(5)