form_field_userptr
Section: Miscellaneous Library Functions (3X)
Updated:
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NAME
set_field_userptr,
field_userptr - associate application data with a form field
SYNOPSIS
#include <form.h>
int set_field_userptr(FIELD *field, void*userptr);
void *field_userptr(const FIELD *field);
DESCRIPTION
Every form field 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
that field.
RETURN VALUE
The function
field_userptr returns a pointer (which may be
NULL).
It does not set errno.
The function set_field_userptr returns E_OK (success).
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 supported on
Version 7 or BSD versions.
The user pointer is a void pointer.
We chose not to leave it as a char pointer for SVr4 compatibility.
AUTHORS
Juergen Pfeifer.
Manual pages and adaptation for new curses by Eric S. Raymond.