NAME¶
form_new - 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¶
ncurses(3NCURSES),
form(3FORM).
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.