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Curses Library Functionsform_hook(3CURSES)


NAME

 form_hook, set_form_init, form_init, set_form_term, form_term, set_field_init, field_init, set_field_term, field_term - assign application-specific routines for invocation by forms

SYNOPSIS

 
cc [ flag ... ] file ... -lform  -lcurses [ library .. ]
#include <form.h>
int set_form_init(FORM *form, void (*func)(FORM*));
 void (*form_init)(FORM *form);
 int set_form_term(FORM *form, void (*func)(FORM*));
 void (*form_term)(FORM *form);
 int set_field_init(FORM *form, void (*func)(FORM*));
 void (*field_init)(FORM *form);
 int set_field_term(FORM *form, void (*func)(FORM*));
 void (*field_term)(FORM *form);

DESCRIPTION

 

These routines allow the programmer to assign application specific routines to be executed automatically at initialization and termination points in the forms application. The user need not specify any application-defined initialization or termination routines at all, but they may be helpful for displaying messages or page numbers and other chores.

set_form_init() assigns an application-defined initialization function to be called when the form is posted and just after a page change. form_init() returns a pointer to the initialization function, if any.

set_form_term() assigns an application-defined function to be called when the form is unposted and just before a page change. form_term() returns a pointer to the function, if any.

set_field_init() assigns an application-defined function to be called when the form is posted and just after the current field changes. field_init() returns a pointer to the function, if any.

set_field_term() assigns an application-defined function to be called when the form is unposted and just before the current field changes. field_term() returns a pointer to the function, if any.

RETURN VALUES

 

Routines that return pointers always return NULL on error. Routines that return an integer return one of the following:

E_OK
The function returned successfully.
E_SYSTEM_ERROR
System error.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelUnsafe

SEE ALSO

 

curses(3CURSES), forms(3CURSES), attributes(5)

NOTES

 

The header <form.h> automatically includes the headers <eti.h> and <curses.h>.


SunOS 5.9Go To TopLast Changed 31 Dec 1996

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.