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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | NOTES | PORTABILITY | AUTHORS | COLOPHON |
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form_hook(3X) form_hook(3X)
form_hook - set hooks for automatic invocation by applications
#include <form.h>
int set_field_init(FORM *form, Form_Hook func);
Form_Hook field_init(const FORM *form);
int set_field_term(FORM *form, Form_Hook func);
Form_Hook field_term(const FORM *form);
int set_form_init(FORM *form, Form_Hook func);
Form_Hook form_init(const FORM *form);
int set_form_term(FORM *form, Form_Hook func);
Form_Hook form_term(const FORM *form);
These functions make it possible to set hook functions to be
called at various points in the automatic processing of input
event codes by form_driver.
The function set_field_init sets a hook to be called at form-post
time and each time the selected field changes (after the change).
field_init returns the current field init hook, if any (NULL if
there is no such hook).
The function set_field_term sets a hook to be called at form-
unpost time and each time the selected field changes (before the
change). field_term returns the current field term hook, if any
(NULL if there is no such hook).
The function set_form_init sets a hook to be called at form-post
time and just after a page change once it is posted. form_init
returns the current form init hook, if any (NULL if there is no
such hook).
The function set_form_term sets a hook to be called at form-
unpost time and just before a page change once it is posted.
form_init returns the current form term hook, if any (NULL if
there is no such hook).
Routines that return pointers return NULL on error. Other
routines return one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno(3)).
curses(3X), form(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
[email protected]. 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
[email protected]
form_hook(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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