form_new(3)

NAME
new_form, free_form - create and destroy forms

SYNOPSIS
#include <form.h>
FORM *new_form(FIELD **fields);
int free_form(FORM *form);

DESCRIPTION
The function new_form creates a new form connected to a specified field pointer array (which must be NULL-terminated).

The function free_form disconnects form from its field array and frees the storage allocated for the form.

RETURN VALUE
The function new_form returns NULL on error. It sets errno according to the function's success:

E_OK
    The routine succeeded.

E_BAD_ARGUMENT
    Routine detected an incorrect or out-of-range argument.

E_CONNECTED
    The field is already connected to a form.

E_SYSTEM_ERROR
    System error occurred, e.g., malloc failure.

The function free_form returns one of the following:

E_OK
    The routine succeeded.

E_BAD_ARGUMENT
    Routine detected an incorrect or out-of-range argument.

E_POSTED
    The form has already been posted.

SEE ALSO
curses(3), form(3).

NOTES
The header file <form.h> automatically includes the header file <curses.h>.

PORTABILITY
These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.

AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.