set_form_userptr

form_userptr(3X)					     form_userptr(3X)



NAME
       form_userptr - associate application data with a form item

SYNOPSIS
       #include <form.h>
       int set_form_userptr(FORM *form, void *userptr);
       void* form_userptr(const FORM *form);

DESCRIPTION
       Every  form  and	 every form item has a field that can be used to hold
       application-specific data (that is, the	form-driver  code  leaves  it
       alone).	These functions get and set the form user pointer field.

RETURN VALUE
       The  function  form_userptr  returns  NULL  on  error.	The  function
       set_form_userptr returns one of the following:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
	    System error occurred (see errno).

SEE ALSO
       curses(3X), form(3X).

NOTES
       The header  file	 <form.h>  automatically  includes  the	 header	 file
       <curses.h>.

PORTABILITY
       These routines emulate the System V forms library.  They were not sup-
       ported on Version 7 or BSD versions.

       The user pointer should be a void pointer.  We  leave  it  as  a	 char
       pointer for SVr4 compatibility.

AUTHORS
       Juergen	Pfeifer.   Manual pages and adaptation for new curses by Eric
       S. Raymond.



							     form_userptr(3X)