NetBSD/lib/libcurses/curses_standout.3

.\"	$NetBSD: curses_standout.3,v 1.10 2021/08/03 07:58:50 nia Exp $
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.\" by Julian Coleman.
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.Dd July 27, 2021
.Dt CURSES_STANDOUT 3
.Os
.Sh NAME
.Nm curses_standout ,
.Nm standout ,
.Nm standend ,
.Nm wstandout ,
.Nm wstandend
.Nd curses standout attribute manipulation routines
.Sh LIBRARY
.Lb libcurses
.Sh SYNOPSIS
.In curses.h
.Ft int
.Fn standout void
.Ft int
.Fn standend void
.Ft int
.Fo wstandout
.Fa "WINDOW *win"
.Fc
.Ft int
.Fo wstandend
.Fa "WINDOW *win"
.Fc
.Sh DESCRIPTION
These functions manipulate the standout attribute on
.Dv stdscr
or on the specified window.
The standout attribute applies the "best" supported highlighting mode
supported by the current terminal, which may be an alias of
other attributes.
.Pp
The
.Fn standout
function turns on the standout attribute
on
.Dv stdscr .
The
.Fn standend
function turns off all attributes
on
.Dv stdscr .
.Pp
The
.Fn wstandout
and
.Fn wstandend
functions are equivalent to
.Fn standout
and
.Fn standend ,
respectively, excepting that the attribute is manipulated on the
window specified by
.Fa win .
.Pp
The
.Fn standout
and
.Fn standend
functions are equivalent to
.Fn attron A_STANDOUT
and
.Fn attroff A_STANDOUT ,
respectively.
.Sh RETURN VALUES
These functions always return 1.
.Sh SEE ALSO
.Xr curses_attributes 3 ,
.Xr curses_underscore 3
.Sh STANDARDS
The
.Nx
Curses library complies with the X/Open Curses specification, part of the
Single Unix Specification.
.Sh HISTORY
The Curses package appeared in
.Bx 4.0 .
.Sh CAVEATS
On some terminals, characters with standout set may have the same appearance
as characters with the reverse video or bold attribute set.
However, on legacy terminals, standout may be the only attribute that can be
used to emphasize characters.
The standout attribute should not be mixed with other attributes.