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

NAME

nodelay - set blocking or non-blocking read

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 nodelay(WINDOW *win, bool bf);

PARAMETERS

win
Is a pointer to the window in which to enable non-blocking.


bf
Is a Boolean expression.

DESCRIPTION

If enabled, (bf is TRUE), the nodelay() function causes getch(3XCURSES)
to return ERR if no input is ready. When disabled, getch() blocks until
a key is pressed.

RETURN VALUES

On success, the nodelay() function returns OK. Otherwise, it returns 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),
notimeout(3XCURSES), attributes(7), standards(7)

June 5, 2002 NODELAY(3XCURSES)