form_field_opts(3)

NAME
set_field_opts, field_opts_on, field_opts_off, field_opts - set and get field options

SYNOPSIS
#include <form.h>
int set_field_opts(FIELD *field, Field_Options opts);
int field_opts_on(FIELD *field, Field_Options opts);
int field_opts_off(FIELD *field, Field_Options opts);
Field_Options field_opts(const FIELD *field);

DESCRIPTION
The function set_field_opts sets all the given field's option bits (field option bits may be logically OR'ed together).

The function field_opts_on turns on the given option bits, and leaves others alone.

The function field_opts_off turns off the given option bits, and leaves others alone.

The function field_opts returns the field's current option bits.

The following options are defined (all are on by default):

O_VISIBLE
    The field is displayed. If this option is off, display of the field is suppressed.

O_ACTIVE
    The field is visited during processing. If this option is off, the field will not be reachable by navigation keys. Please notice that an invisible field appears to be inactive also.

O_PUBLIC
    The field contents are displayed as data is entered.

O_EDIT
    The field can be edited.

O_WRAP
    Words that do not fit on a line are wrapped to the next line. Words are blank-separated.

O_BLANK
    The field is cleared whenever a character is entered at the first position.

O_AUTOSKIP
    Skip to the next field when this one fills.

O_NULLOK
    Allow a blank field.

O_STATIC
    Field buffers are fixed to field's original size. Turn this option off to create a dynamic field.

O_PASSOK
    Validate field only if modified by user.

RETURN VALUE
Except for field_opts, each routine returns one of the following:

E_OK
    The routine succeeded.

E_BAD_ARGUMENT
    Routine detected an incorrect or out-of-range argument.

E_CURRENT
    The field is the current field.

E_SYSTEM_ERROR
    System error occurred (see errno).

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

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.

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