ncursesw-morphos/man/form_new.3x
Thomas E. Dickey 7884aa084f ncurses 6.2 - patch 20201024
+ provide workaround configure-check for bool when cross-compiling.
+ fix a potential indexing error in _nc_parse_entry(), seen with
  Herlim's test data using address-sanitizer.
+ change a null-pointer check in set_curterm to a valid-string check,
  needed in to tic's use-resolution work pad_char is cancelled
  (report/testcase by Robert Sebastian Herlim)
+ improve tic's -c option to validate the number and type of parameters
  and compare against expected number/type before deciding which set of
  parameter-lists to use in tparm calls (report/testcase by Robert
  Sebastian Herlim).
+ fix a link for tabs.1 manpage in announce.html.in (report by Nick
  Black), as well as some fixes via linklint.
2020-10-25 01:07:10 +00:00

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'\" t
.\"***************************************************************************
.\" Copyright 2018,2020 Thomas E. Dickey *
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.\" $Id: form_new.3x,v 1.15 2020/10/24 09:02:26 tom Exp $
.TH form_new 3X ""
.SH NAME
\fBnew_form\fR,
\fBfree_form\fP \- create and destroy forms
.SH SYNOPSIS
\fB#include <form.h>\fR
.sp
\fBFORM *new_form(FIELD **\fP\fIfields\fP\fB);\fP
.br
\fBint free_form(FORM *\fP\fIform\fP\fB);\fP
.br
.SH DESCRIPTION
The function \fBnew_form\fR creates a new form connected to a specified field
pointer array (which must be \fBNULL\fR-terminated).
.PP
The function \fBfree_form\fR disconnects \fIform\fR from its field array
and frees the storage allocated for the form.
.SH RETURN VALUE
The function \fBnew_form\fR returns \fBNULL\fR on error.
It sets \fBerrno\fP according to the function's success:
.TP 5
.B E_OK
The routine succeeded.
.TP 5
.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
.B E_CONNECTED
The field is already connected to a form.
.TP 5
.B E_SYSTEM_ERROR
System error occurred, e.g., malloc failure.
.PP
The function \fBfree_form\fR returns one of the following:
.TP 5
.B E_OK
The routine succeeded.
.TP 5
.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
.B E_POSTED
The form has already been posted.
.SH SEE ALSO
\fBcurses\fR(3X), \fBform\fR(3X).
.SH NOTES
The header file \fB<form.h>\fR automatically includes the header file
\fB<curses.h>\fR.
.SH PORTABILITY
These routines emulate the System V forms library.
They were not supported on
Version 7 or BSD versions.
.SH AUTHORS
Juergen Pfeifer.
Manual pages and adaptation for new curses by Eric S. Raymond.