# form_field_opts 3x 2025-01-18 ncurses 6.6 Library calls

    form_field_opts(3x)              Library calls             form_field_opts(3x)

## 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);
           Field_Options field_opts(const FIELD *field);

           int field_opts_on(FIELD *field, Field_Options opts);
           int field_opts_off(FIELD *field, Field_Options opts);

## 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 standard options are defined (all are on by default):

           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_AUTOSKIP
                Skip to the next field when this one fills.

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

           O_EDIT
                The field can be edited.

           O_NULLOK
                Allow a blank field.

           O_PASSOK
                Validate field only if modified by user.

           O_PUBLIC
                The field contents are displayed as data is entered.

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

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

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

           These extension options are defined (extensions are off by default):

           O_DYNAMIC_JUSTIFY
                Permit dynamic fields to be justified, like static fields.

           O_NO_LEFT_STRIP
                Preserve leading whitespace in the field buffer, which is normally
                discarded.

           O_EDGE_INSERT_STAY
                When  inserting  into  a  field  up  to  the  boundary   position,
                optionally   delay  the  scrolling,  so  that  the  last  inserted
                character remains visible, but advance the cursor to  reflect  the
                insertion.   This  allows the form library to display the inserted
                character in one-character fields as well as allowing the  library
                to maintain consistent state.

           O_INPUT_FIELD
                The set_max_field function checks for this extension, which allows
                a  dynamic  field  to  shrink if the new limit is smaller than the
                current field size.

## 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(3)).

## 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.

## SEE ALSO

           curses(3x), form(3x), form_field_just(3x)

    ncurses 6.6                       2025-01-18               form_field_opts(3x)