NAME
field_init,
field_term, form_init,
form_term, set_field_init,
set_field_term,
set_form_init, set_form_term
— form library
LIBRARY
library “libform”
SYNOPSIS
#include
<form.h>
void (*)(FORM *)
field_init(FORM
*form);
void (*)(FORM *)
field_term(FORM
*form);
void (*)(FORM *)
form_init(FORM
*form);
void (*)(FORM *)
form_term(FORM
*form);
int
set_field_init(FORM
*form, void
(*function)(FORM *));
int
set_field_term(FORM
*form, void
(*function)(FORM *));
int
set_form_init(FORM
*form, void
(*function)(FORM *));
int
set_form_term(FORM
*form, void
(*function)(FORM *));
DESCRIPTION
Thefield_init()
function returns a pointer to the function that will be called just after the
current field changes and just before the form is posted, this function may be
set by using the
set_field_init()
function. Similarly, the function
field_term()
will return a pointer to the function that will be called just before the
current field changes and just after the form is unposted, this function
pointer may be set by using the
set_field_term()
function. The
form_init()
function will return a pointer to the function that will be called just before
the form is posted to the screen, this function can be set by calling the
set_form_init()
function. The
form_term()
function will return a pointer to the function that will be called just after
the form is unposted from the screen, this function may be set by using the
set_form_term()
function. By default, the init and term function pointers are
NULL.
RETURN VALUES
Functions returning pointers will return
NULL if an error is detected. The functions that
return an int will return one of the following error values:
E_OK- The function was successful.
SEE ALSO
NOTES
The header
<form.h> automatically
includes both <curses.h> and
<eti.h>.