xref: /titanic_41/usr/src/man/man3xcurses/clear.3xcurses (revision f3312ec0e8acbd249df97358fb8c3ca92f4e089c)
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CLEAR 3XCURSES "Jun 5, 2002"
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 TYPE ATTRIBUTE VALUE
Interface Stability Standard
MT-Level Unsafe
SEE ALSO

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