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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | NOTES | PORTABILITY | AUTHORS | COLOPHON |
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form_field_opts(3X) form_field_opts(3X)
set_field_opts, field_opts_on, field_opts_off, field_opts - set
and get field options
#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);
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.
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)).
curses(3X), form(3X). form_field_just(3X).
The header file <form.h> automatically includes the header file
<curses.h>.
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.
This page is part of the ncurses (new curses) project.
Information about the project can be found at
⟨https://www.gnu.org/software/ncurses/ncurses.html⟩. If you have
a bug report for this manual page, send it to
bug-ncurses-request@gnu.org. This page was obtained from the
project's upstream Git mirror of the CVS repository
⟨https://github.com/mirror/ncurses.git⟩ on 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2023-03-12.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
form_field_opts(3X)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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