https://invisible-island.net/ncurses/man/
form_opts(3x) Library calls form_opts(3x)
set_form_opts, form_opts_on, form_opts_off, form_opts - set and get
form options
#include <form.h>
int set_form_opts(FORM *form, Field_Options opts);
Field_Options form_opts(const FORM *form);
int form_opts_on(FORM *form, Field_Options opts);
int form_opts_off(FORM *form, Field_Options opts);
The function set_form_opts sets all the given form's option bits (form
option bits may be logically-OR'ed together).
The function form_opts_on turns on the given option bits, and leaves
others alone.
The function form_opts_off turns off the given option bits, and leaves
others alone.
The function form_opts returns the form's current option bits.
The following options are defined (all are on by default):
O_NL_OVERLOAD
Overload the REQ_NEW_LINE forms driver request so that calling it
at the end of a field goes to the next field.
O_BS_OVERLOAD
Overload the REQ_DEL_PREV forms driver request so that calling it
at the beginning of a field goes to the previous field.
Except for form_opts, each routine returns one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno(3)).
These routines emulate the System V forms library. They were not
supported on Version 7 or BSD versions.
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S.
Raymond.
curses(3x), form(3x)
ncurses 6.5 2024-03-16 form_opts(3x)