intrflush.3cur

<B>Digital的Unix操作系统VAX 4.2源码</B>

.TH intrflush 3cur 
.SH Name
intrflush \- enable flush on interrupt
.SH Syntax
.br
.B
#include <cursesX.h>
.PP
.br
.B
int intrflush(win, bf)
.br
.B
WINDOW \(**win;
.br
.B
bool bf;
.SH Description
.NXR "intrflush subroutine"
If 
.PN intrflush
is enabled, 
pressing an interrupt key
(interrupt, break, quit) 
flushes all output in the tty driver queue.
This gives the effect of a faster response to the interrupt
but causes
the
.PN curses
program to have an inaccurate picture of what is on the screen.
Disabling the option prevents the flush.
.PP
The default for the option is dependent on the tty driver settings.
You have to force the terminal into the state you require. 
The window argument is ignored.
.SH Return Values
The
.PN intrflush
function returns OK on success and ERR on error.