2012-12-04 11:42:24 +01:00
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.\" $NetBSD: curses_chgat.3,v 1.5 2011/02/10 08:54:12 blymn Exp $
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2011-07-21 16:29:08 +02:00
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.\"
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.\" Copyright (c) 2009 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 Joerg Sonnenberger.
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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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.\"
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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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.\" 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 July 6, 2009
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.Dt CURSES_CHGAT 3
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.Os
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.Sh NAME
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.Nm chgat ,
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.Nm wchgat ,
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.Nm mvchgat ,
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.Nm mvwchgat
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.Nd curses on-screen attribute manipulation 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 chgat "int n" "attr_t attr" "short color" "const void *opts"
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.Ft int
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.Fn wchgat "WINDOW *win" "int n" "attr_t attr" "short color" \
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"const void *opts"
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.Ft int
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.Fn mvchgat "int y" "int x" "int n" "attr_t attr" "short color" \
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"const void *opts"
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.Ft int
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.Fn mvwchgat "WINDOW *win" "int y" "int x" "int n" "attr_t attr" \
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"short color" "const void *opts"
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.Sh DESCRIPTION
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These functions modify the attributes of the drawn content on stdscr or
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on the specified window.
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.Pp
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The
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.Fn chgat
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function sets the attributes of the next
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.Fa n
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characters to
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.Fa attr
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and the color pair to
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.Fa color .
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If
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.Fa n
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2012-12-04 11:42:24 +01:00
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is negative or larger than the remainder of the line, it gets truncated.
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.Pp
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The
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.Fn wchgat
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is the same as the
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.Fn chgat
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function, excepting that the attributes are changed in the window specified by
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.Fa win .
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.Pp
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The
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.Fn mvchgat
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and
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.Fn mvwchgat
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functions are the same as the
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.Fn chgat
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and
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.Fn wchgat
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functions, respectively, excepting that they operate from the position
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specified by
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.Fa y ,
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.Fa x .
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.Pp
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These functions do not perform wrapping.
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They do not update the cursor position.
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.Sh RETURN VALUES
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The functions that return an int will return one of the following
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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_attributes 3
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.Sh STANDARDS
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The
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.Fn chgat ,
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.Fn wchgat ,
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.Fn mvchgat ,
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and
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.Fn mvwchgat
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functions conform to
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.St -xcurses4.2 .
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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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Support for the
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.Fn chgat
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family was added in
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.Nx 6.0 .
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