man/mitem_userptr.3x

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.\" $Id: mitem_userptr.3x,v 1.34 2024/03/16 15:35:01 tom Exp $
.TH mitem_userptr 3X 2024-03-16 "ncurses @NCURSES_MAJOR@.@NCURSES_MINOR@" "Library calls"
.SH NAME
\fBset_item_userptr\fP,
\fBitem_userptr\fP \-
associate application data with a menu item
.SH SYNOPSIS
.nf
\fB#include <menu.h>
.PP
\fBint set_item_userptr(ITEM *\fIitem\fP, void *\fIuserptr\fP);
\fBvoid *item_userptr(const ITEM *\fIitem\fP);
.fi
.SH DESCRIPTION
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
that field.
.SH RETURN VALUE
The function \fBitem_userptr\fP returns a pointer (possibly \fBNULL\fP).
It does not set \fBerrno\fP.
.PP
The \fBset_item_userptr\fP always 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\%curses\fP(3X),
\fB\%menu\fP(3X)