Controls blocking on input.
Curses Library (libcurses.a)
#include <curses.h>
int notimeout
(WINDOW *win,
bool bf);
void timeout
(int delay);
void wtimeout
(WINDOW *win,
int delay);The notimeout subroutine specifies whether Timeout Mode or No Timeout Mode is in effect for the screen associated with the specified window. If bf is TRUE, this screen is set to No Timeout Mode. If bf is FALSE, this screen is set to Timeout Mode. The initial state is FALSE.
The timeout and wtimeout subroutines set blocking or non-blocking read for the current or specified window based on the value of delay:
| Item | Description |
|---|---|
| delay < 0 | One or more blocking reads (indefinite waits for input) are used. |
| delay = 0 | One or more non-blocking reads are used. Any Curses input subroutine will fail if every character of the requested string is not immediately available. |
| delay > 0 | Any Curses input subroutine blocks for delay milliseconds and fails if there is still no input. |
| Item | Description |
|---|---|
| *win | |
| bf |
Upon successful completion, the notimeout subroutine returns OK. Otherwise, it returns ERR.
The timeout and wtimeout subroutines do not return a value.
To set the flag so that the wgetch subroutine does not set the timer when getting characters from the my_win window, use:
WINDOW *my_win;
notimeout(my_win, TRUE);