127 lines
3.6 KiB
Groff
127 lines
3.6 KiB
Groff
.\" $NetBSD: curses_echochar.3,v 1.2 2004/03/28 12:23:21 wiz Exp $
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.\" Copyright (c) 2004 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Julian Coleman.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd March 27, 2004
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.Dt CURSES_ECHOCHAR 3
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.Os
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.Sh NAME
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.Nm curses_echochar ,
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.Nm echochar ,
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.Nm wechochar ,
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.Nm pechochar
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.Nd curses add characters and then refresh routines
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.Sh LIBRARY
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.Lb libcurses
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.Sh SYNOPSIS
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.In curses.h
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.Ft int
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.Fn echochar "const chtype ch"
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.Ft int
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.Fn wechochar "WINDOW *win" "const chtype ch"
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.Ft int
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.Fn pechochar "WINDOW *pad" "const chtype ch"
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.Sh DESCRIPTION
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These functions add characters to
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.Dv stdscr
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or to the specified window or pad and then cause an immediate
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.Fn refresh
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of that window or pad.
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.Pp
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The
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.Fn echochar
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function adds the character given in
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.Fa ch
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to
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.Dv stdscr
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at the current cursor position and advances the current cursor position by one.
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Any character attributes set in
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.Fa ch
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will be merged with the background attributes currently set on
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.Dv stdscr .
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.Dv stdscr
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is then refreshed.
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Calling
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.Fn echochar
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is equivalent to calling
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.Fn addch
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followed by
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.Fn refresh .
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.Pp
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The
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.Fn wechochar
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function is the same as the
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.Fn echochar
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function, excepting that the character is added to the window specified by
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.Fa win
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and
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.Fa win
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is refreshed.
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.Pp
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The
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.Fn pechochar
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function is the similar to the
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.Fn echochar
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function, excepting that the character is added to the pad specified by
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.Fa pad
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and
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.Fa pad
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is refreshed at its previous location on the screen.
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Calling
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.Fn pechochar
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is equivalent to calling
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.Fn addch
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followed by
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.Fn prefresh .
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.Sh RETURN VALUES
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These functions will return one of the following values:
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.Pp
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.Bl -tag -width ERR -compact
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.It Er OK
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The function completed successfully.
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.It Er ERR
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An error occurred in the function.
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.El
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.Sh SEE ALSO
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.Xr curses_addch 3 ,
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.Xr curses_attributes 3 ,
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.Xr curses_pad 3 ,
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.Xr curses_refresh 3
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.Sh STANDARDS
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The
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.Fn echochar ,
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.Fn wechochar ,
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and
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.Fn pechochar
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functions comply with the X/Open Curses specification, part of the
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Single Unix Specification.
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.Sh HISTORY
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The Curses package appeared in
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.Bx 4.0 .
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