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)
