'\" te
.\"  Copyright (c) 1990, 1995 by Mortice Kern Systems Inc.  All Rights Reserved  Portions Copyright (c) 1999, Sun Microsystems, Inc.  All Rights Reserved
.TH echo 3XCURSES "5 Jun 2002" "SunOS 5.11" "X/Open Curses Library Functions"
.SH NAME
echo, noecho \- enable/disable terminal echo
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-I\fR /usr/xpg4/include \fB -L \fR /usr/xpg4/lib \e
\fB -R \fR /usr/xpg4/lib \fB -lcurses \fR [ \fIlibrary\fR... ]

\fBc89\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lcurses\fR [ \fIlibrary\fR... ]
 
#include <curses.h>

\fBint\fR \fBecho\fR(\fBvoid\fR);
.fi

.LP
.nf
\fBint\fR \fBnoecho\fR(\fBvoid\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBecho()\fR function enables Echo mode for the current screen. The \fBnoecho()\fR function disables Echo mode for the current screen. Initially, curses software echo mode is enabled and hardware echo mode of the \fBtty\fR driver is disabled. The \fBecho()\fR and \fBnoecho()\fR functions control software echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.
.SH RETURN VALUES
.sp
.LP
Upon successful completion, these functions return \fBOK\fR. Otherwise, they return \fBERR\fR.
.SH ERRORS
.sp
.LP
No errors are defined.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelUnsafe
_
StandardSee \fBstandards\fR(5).
.TE

.SH SEE ALSO
.sp
.LP
\fBgetch\fR(3XCURSES), \fBgetstr\fR(3XCURSES), \fBinitscr\fR(3XCURSES), \fBlibcurses\fR(3XCURSES), \fBscanw\fR(3XCURSES), \fBattributes\fR(5), \fBstandards\fR(5)