NetBSD/lib/libcurses/curses_echochar.3

.\"	$NetBSD: curses_echochar.3,v 1.2 2004/03/28 12:23:21 wiz Exp $
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.\" by Julian Coleman.
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.Dd March 27, 2004
.Dt CURSES_ECHOCHAR 3
.Os
.Sh NAME
.Nm curses_echochar ,
.Nm echochar ,
.Nm wechochar ,
.Nm pechochar
.Nd curses add characters and then refresh routines
.Sh LIBRARY
.Lb libcurses
.Sh SYNOPSIS
.In curses.h
.Ft int
.Fn echochar "const chtype ch"
.Ft int
.Fn wechochar "WINDOW *win" "const chtype ch"
.Ft int
.Fn pechochar "WINDOW *pad" "const chtype ch"
.Sh DESCRIPTION
These functions add characters to
.Dv stdscr
or to the specified window or pad and then cause an immediate
.Fn refresh
of that window or pad.
.Pp
The
.Fn echochar
function adds the character given in
.Fa ch
to
.Dv stdscr
at the current cursor position and advances the current cursor position by one.
Any character attributes set in
.Fa ch
will be merged with the background attributes currently set on
.Dv stdscr .
.Dv stdscr
is then refreshed.
Calling
.Fn echochar
is equivalent to calling
.Fn addch
followed by
.Fn refresh .
.Pp
The
.Fn wechochar
function is the same as the
.Fn echochar
function, excepting that the character is added to the window specified by
.Fa win
and
.Fa win
is refreshed.
.Pp
The
.Fn pechochar
function is the similar to the
.Fn echochar
function, excepting that the character is added to the pad specified by
.Fa pad
and
.Fa pad
is refreshed at its previous location on the screen.
Calling
.Fn pechochar
is equivalent to calling
.Fn addch
followed by
.Fn prefresh .
.Sh RETURN VALUES
These functions will return one of the following values:
.Pp
.Bl -tag -width ERR -compact
.It Er OK
The function completed successfully.
.It Er ERR
An error occurred in the function.
.El
.Sh SEE ALSO
.Xr curses_addch 3 ,
.Xr curses_attributes 3 ,
.Xr curses_pad 3 ,
.Xr curses_refresh 3
.Sh STANDARDS
The
.Fn echochar ,
.Fn wechochar ,
and
.Fn pechochar
functions comply with the X/Open Curses specification, part of the
Single Unix Specification.
.Sh HISTORY
The Curses package appeared in
.Bx 4.0 .