\" $NetBSD: panel_above.3,v 1.8 2015/11/01 14:47:54 wiz Exp $
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\" Copyright (c) 2015 Valery Ushakov
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Dd October 28, 2015
Dt PANEL_ABOVE 3
Os
Sh NAME
Nm top_panel ,
Nm bottom_panel ,
Nm panel_above ,
Nm panel_below
Nd z-order of panels
Sh LIBRARY
Lb libpanel
Sh SYNOPSIS
In panel.h
\"
Ft int
Fn top_panel "PANEL *p"
\"
Ft int
Fn bottom_panel "PANEL *p"
\"
Ft PANEL *
Fn panel_above "PANEL *p"
\"
Ft PANEL *
Fn panel_below "PANEL *p"
\"
Sh DESCRIPTION
Newly created panels are placed at the top of the deck.
The z-order of a visible panel can be changed with the functions
Fn top_panel
and
Fn bottom_panel
that move it to the top and bottom of the deck respectively.
Pp
For a visible panel its neighbors in the deck can be obtained with
Fn panel_above
and
Fn panel_below .
The bottom and top panels can be obtained by passing a
Dv NULL
argument to
Fn panel_above
and
Fn panel_below ,
respectively.
Sh IMPLEMENTATION NOTES
The
Fn top_panel
function will return an error if the panel is currently hidden.
Use
Xr show_panel 3
to make a hidden panel visible again and put it at the top of the deck.
This is the behaviour specified by the original
At V
panel library.
Pp
In the ncurses implementation of the panel library
Fn show_panel
and
Fn top_panel
are identical and handle both visible and hidden panels.
This may be a source of bugs in programs tested only against ncurses.
Sh RETURN VALUES
Functions returning pointers will return
Dv NULL
if an error is detected.
The functions that return an int will return one of the following
values:
Pp
Bl -tag -width ".Dv ERR" -compact
It Dv OK
The function completed successfully.
It Dv ERR
An error occurred in the function.
El
Sh SEE ALSO
Xr panel 3
