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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 6.4" "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)