xref: /freebsd/contrib/ncurses/man/form_new.3x (revision 2dd83b3f0507fc7bc64b908fb88f285a3b9663c8)
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$Id: form_new.3x,v 1.15 2020/10/24 09:02:26 tom Exp $
form_new 3X ""
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:

5 E_OK The routine succeeded.

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

5 E_CONNECTED The field is already connected to a form.

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

The function free_form returns one of the following:

5 E_OK The routine succeeded.

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

5 E_POSTED The form has already been posted.

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