установить хуки для автоматического вызова приложениями (set hooks for automatic invocation by applications)
Имя (Name)
form_hook - set hooks for automatic invocation by applications
Синопсис (Synopsis)
#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);
Описание (Description)
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).
Возвращаемое значение (Return value)
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)).
Смотри также (See also)
curses(3X), form(3X).
Примечание (Note)
The header file <form.h> automatically includes the header file
<curses.h>.
Портативность (Portability)
These routines emulate the System V forms library. They were not
supported on Version 7 or BSD versions.
