ECHO(3XCURSES) X/Open Curses Library Functions ECHO(3XCURSES)

NAME

echo, noecho - enable/disable terminal echo

SYNOPSIS

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

c89 [ flag... ] file... -lcurses [ library... ]

#include <curses.h>

int echo(void);


int noecho(void);

DESCRIPTION

The echo() function enables Echo mode for the current screen. The
noecho() function disables Echo mode for the current screen. Initially,
curses software echo mode is enabled and hardware echo mode of the tty
driver is disabled. The echo() and noecho() functions control software
echo only. Hardware echo must remain disabled for the duration of the
application, else the behavior is undefined.

RETURN VALUES

Upon successful completion, these functions return OK. Otherwise, they
return ERR.

ERRORS

No errors are defined.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | Unsafe |
+--------------------+-----------------+

SEE ALSO

getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES),
libcurses(3XCURSES), scanw(3XCURSES), attributes(7), standards(7)

June 5, 2002 ECHO(3XCURSES)