form_field_userptr(3X)form_field_userptr(3X)NAMEform_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-spe‐
cific data (that is, the form-driver code leaves it alone). These
functions get and set that field.
RETURN VALUE
The function field_userptr returns NULL on error. The function
set_field_userptr returns one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
SEE ALSOcurses(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_field_userptr(3X)