form_new3form
Create and destroy forms
Part of new(3form).
Usage
#include <form.h>
FORM *new_form(FIELD **fields);
int free_form(FORM *form);
Overview
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:
|
The routine succeeded. |
|---|---|
|
Routine detected an incorrect or out-of-range argument. |
|
The field is already connected to a form. |
|
System error occurred, e.g., malloc failure. |
The function free_form returns one of the following:
|
The routine succeeded. |
|---|---|
|
Routine detected an incorrect or out-of-range argument. |
|
The form has already been posted. |
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.
Releases
7 releases since Debian 3.0 (Woody); the text changed 4 times.