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.\"***************************************************************************
.\" Copyright 2018-2023,2024 Thomas E. Dickey *
.\" Copyright 1998-2016,2017 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" "Software"), to deal in the Software without restriction, including *
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.\" copies of the Software, and to permit persons to whom the Software is *
.\" furnished to do so, subject to the following conditions: *
.\" *
.\" The above copyright notice and this permission notice shall be included *
.\" in all copies or substantial portions of the Software. *
.\" *
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
.\" *
.\" Except as contained in this notice, the name(s) of the above copyright *
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.\"***************************************************************************
.\"
.\" $Id: menu_post.3x,v 1.36 2024/03/16 15:35:01 tom Exp $
.TH post 3MENU 2024-03-16 "ncurses 6.5" "Library calls"
.SH NAME
\fBpost_menu\fP,
\fBunpost_menu\fP \-
write or erase menus from associated subwindows
.SH SYNOPSIS
.nf
\fB#include <menu.h>
.PP
\fBint post_menu(MENU *\fImenu\fP);
\fBint unpost_menu(MENU *\fImenu\fP);
.fi
.SH DESCRIPTION
The function \fBpost_menu\fP displays a menu to its associated subwindow.
To
trigger physical display of the subwindow,
use \fB\%refresh\fP(3NCURSES) or some equivalent
\fBcurses\fP routine (the implicit \fBdoupdate\fP triggered by an \fBcurses\fP
input request will do).
\fBpost_menu\fP resets the selection status of all items.
.PP
The function \fBunpost_menu\fP erases menu from its associated subwindow.
.SH RETURN VALUE
These routines return one of the following:
.TP 5
.B E_OK
The routine succeeded.
.TP 5
.B E_SYSTEM_ERROR
System error occurred (see \fBerrno\fP(3)).
.TP 5
.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
.B E_POSTED
The menu has already been posted.
.TP 5
.B E_BAD_STATE
Routine was called from an initialization or termination function.
.TP 5
.B E_NO_ROOM
Menu is too large for its window.
You should consider using \fBset_menu_format\fP to solve the problem.
.TP 5
.B E_NOT_POSTED
The menu has not been posted.
.TP 5
.B E_NOT_CONNECTED
No items are connected to the menu.
.SH PORTABILITY
These routines emulate the System V menu library.
They were not supported on
Version 7 or BSD versions.
.SH AUTHORS
Juergen Pfeifer.
Manual pages and adaptation for new curses by Eric S. Raymond.
.SH SEE ALSO
\fB\%ncurses\fP(3NCURSES),
\fB\%menu\fP(3MENU)
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