cbreak.3cur

<B>Digital的Unix操作系统VAX 4.2源码</B>

.TH cbreak 3cur 
.SH Name
cbreak, nocbreak \- set/clear cbreak mode
.SH Syntax
.B
int cbreak(\|)
.PP
.B
int nocbreak(\|)
.SH Description
.NXR "cbreak subroutine"
.NXR "nocbreak subroutine"
The routine 
.PN cbreak 
puts the terminal into CBREAK mode.
In this mode, characters typed by the user are immediately available to the
program and erase/kill character processing is not performed.
Interrupt and flow control characters are unaffected by this mode.
.PP
The routine 
.PN nocbreak
disables CBREAK.
In this case 
the terminal
driver will buffer input
until a newline or carriage return is typed. 
.PP
The initial settings that determine whether or not a terminal is
in CBREAK mode are dependent on the terminal driver implementation.
As a result of this, 
it is not possible to determine if a terminal
is in 
CBREAK 
mode, as it is an inherited characteristic.
It is necessary to call
.PN cbreak 
to ensure that the terminal is set to the correct mode for the 
application.
.SH Return Values
The
.PN cbreak
and 
.PN nobreak
functions return OK on success and ERR on error.