t
***************************************************************************
Copyright 2018-2019,2020 Thomas E. Dickey *
Copyright 1998-2010,2016 Free Software Foundation, Inc. *
*
Permission is hereby granted, free of charge, to any person obtaining a *
copy of this software and associated documentation files (the *
"Software"), to deal in the Software without restriction, including *
without limitation the rights to use, copy, modify, merge, publish, *
distribute, distribute with modifications, sublicense, and/or sell *
copies of the Software, and to permit persons to whom the Software is *
furnished to do so, subject to the following conditions: *
*
The above copyright notice and this permission notice shall be included *
in all copies or substantial portions of the Software. *
*
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
*
Except as contained in this notice, the name(s) of the above copyright *
holders shall not be used in advertising or otherwise to promote the *
sale, use or other dealings in this Software without prior written *
authorization. *
***************************************************************************

$Id: form_page.3x,v 1.19 2020/10/18 00:02:44 tom Exp $
form_page - set and get form page number #include <form.h> int set_current_field(FORM *form, FIELD *field);

FIELD *current_field(const FORM *form); int unfocus_current_field(FORM *form); int set_form_page(FORM *form, int n);

int form_page(const FORM *form); int field_index(const FIELD *field);

The function set_current_field sets the current field of the given form; current_field returns the current field of the given form.

The function unfocus_current_field removes the focus from the current field of the form. In such state, inquiries via current_field shall return a NULL pointer.

The function set_form_page sets the form's page number (goes to page n of the form).

The function form_page returns the form's current page number.

The function field_index returns the index of the field in the field array of the form it is connected to. It returns ERR if the argument is the null pointer or the field is not connected.

Except for form_page, each routine 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_BAD_STATE Routine was called from an initialization or termination function.

5 E_INVALID_FIELD Contents of a field are not valid.

5 E_REQUEST_DENIED The form driver could not process the request.

5 E_SYSTEM_ERROR System error occurred (see errno(3)). .

curses(3X), form(3X). The header file <form.h> automatically includes the header file <curses.h>. These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.

The unfocus_current_field function is an ncurses extension.

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