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

NAME

cbreak, nocbreak, noraw, raw - set input mode controls

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 cbreak(void);


int nocbreak(void);


int noraw(void);


int raw(void);

DESCRIPTION

The cbreak() function enables the character input mode. This overrides
any previous call to the raw() function and turns the stty flag ICANON
off.


The nocbreak() function sets the line canonical mode and turns the stty
flag ICANON on without touching the ISIG or IXON flags.


The noraw() function sets the line canonical mode and turns the stty
flags ICANON, ISIG, and IXON all on.


The raw() function sets the character input mode and turns the stty flags
ICANON, ISIG, and IXON all off. This mode provides maximum control over
input.


It is important to remember that the terminal may or may not be in
character mode operation initially. Most interactive programs require
cbreak() to be enabled.

RETURN VALUES

On success, these functions return OK. Otherwise, they return ERR.

ERRORS

None.

ATTRIBUTES

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


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

SEE ALSO

getch(3XCURSES), halfdelay(3XCURSES), libcurses(3XCURSES),
nodelay(3XCURSES), timeout(3XCURSES), termio(4I), attributes(7),
standards(7)

June 5, 2002 CBREAK(3XCURSES)