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.\"***************************************************************************
.\" Copyright 2018-2022,2023 Thomas E. Dickey *
.\" Copyright 1998-2010,2015 Free Software Foundation, Inc. *
.\" *
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.\"***************************************************************************
.\"
.\" $Id: menu_userptr.3x,v 1.31 2023/11/25 13:58:47 tom Exp $
.TH userptr 3MENU 2023-11-25 "ncurses 6.4" "Library calls"
.SH NAME
\fBset_menu_userptr\fP,
\fBmenu_userptr\fP \-
associate application data with a menu item
.SH SYNOPSIS
.nf
\fB#include <menu.h>
.PP
\fBint set_menu_userptr(MENU *\fImenu\fP, void *\fIuserptr\fP);
\fBvoid *menu_userptr(const MENU *\fImenu\fP);
.fi
.SH DESCRIPTION
Every menu and every menu item has a field that can be used to hold
application-specific data (that is, the menu-driver code leaves it alone).
These functions get and set the menu user pointer field.
.SH RETURN VALUE
\fBmenu_userptr\fP returns a pointer (which may be \fBNULL\fP).
It does not set \fBerrno\fP.
.PP
\fBset_menu_userptr\fP returns \fBE_OK\fP (success).
.SH PORTABILITY
These routines emulate the System V menu library.
They were not supported on
Version 7 or BSD versions.
.PP
The user pointer is a void pointer.
We chose not to leave it as a char pointer for SVr4 compatibility.
.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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