'\" te
.\" Copyright 1989 AT&T
.\" Portions Copyright (c) 1996, Sun Microsystems, Inc. All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
.\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
.TH FORM_DRIVER 3CURSES "Dec 31, 1996"
.SH NAME
form_driver \- command processor for the forms subsystem
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lform\fR \fB -lcurses \fR [ \fIlibrary\fR... ]
#include <form.h>

\fBint\fR \fBform_driver\fR(\fBFORM *\fR\fIform\fR, \fBint\fR \fIc\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBform_driver()\fR function is the workhorse of the \fBforms\fR subsystem;
it checks to determine whether the character \fIc\fR is a \fBforms\fR request
or data. If it is a request, the form driver executes the request and reports
the result. If it is data (a printable \fBASCII\fR character), it enters the
data into the current position in the current field. If it is not recognized,
the form driver assumes it is an application-defined command and returns
\fBE_UNKNOWN_COMMAND\fR. Application defined commands should be defined
relative to \fBMAX_COMMAND\fR, the maximum value of a request listed below.
.sp
.LP
Form driver requests:
.sp
.ne 2
.na
\fBREQ_NEXT_PAGE\fR
.ad
.RS 20n
Move to the next page.
.RE

.sp
.ne 2
.na
\fBREQ_PREV_PAGE\fR
.ad
.RS 20n
Move to the previous page.
.RE

.sp
.ne 2
.na
\fBREQ_FIRST_PAGE\fR
.ad
.RS 20n
Move to the first page.
.RE

.sp
.ne 2
.na
\fBREQ_LAST_PAGE\fR
.ad
.RS 20n
Move to the last page.
.RE

.sp
.ne 2
.na
\fBREQ_NEXT_FIELD\fR
.ad
.RS 20n
Move to the next field.
.RE

.sp
.ne 2
.na
\fBREQ_PREV_FIELD\fR
.ad
.RS 20n
Move to the previous field.
.RE

.sp
.ne 2
.na
\fBREQ_FIRST_FIELD\fR
.ad
.RS 20n
Move to the first field.
.RE

.sp
.ne 2
.na
\fBREQ_LAST_FIELD\fR
.ad
.RS 20n
Move to the last field.
.RE

.sp
.ne 2
.na
\fBREQ_SNEXT_FIELD\fR
.ad
.RS 20n
Move to the sorted next field.
.RE

.sp
.ne 2
.na
\fBREQ_SPREV_FIELD\fR
.ad
.RS 20n
Move to the sorted prev field.
.RE

.sp
.ne 2
.na
\fBREQ_SFIRST_FIELD\fR
.ad
.RS 20n
Move to the sorted first field.
.RE

.sp
.ne 2
.na
\fBREQ_SLAST_FIELD\fR
.ad
.RS 20n
Move to the sorted last field.
.RE

.sp
.ne 2
.na
\fBREQ_LEFT_FIELD\fR
.ad
.RS 20n
Move left to field.
.RE

.sp
.ne 2
.na
\fBREQ_RIGHT_FIELD\fR
.ad
.RS 20n
Move right to field.
.RE

.sp
.ne 2
.na
\fBREQ_UP_FIELD\fR
.ad
.RS 20n
Move up to field.
.RE

.sp
.ne 2
.na
\fBREQ_DOWN_FIELD\fR
.ad
.RS 20n
Move down to field.
.RE

.sp
.ne 2
.na
\fBREQ_NEXT_CHAR\fR
.ad
.RS 20n
Move to the next character in the field.
.RE

.sp
.ne 2
.na
\fBREQ_PREV_CHAR\fR
.ad
.RS 20n
Move to the previous character in the field.
.RE

.sp
.ne 2
.na
\fBREQ_NEXT_LINE\fR
.ad
.RS 20n
Move to the next line in the field.
.RE

.sp
.ne 2
.na
\fBREQ_PREV_LINE\fR
.ad
.RS 20n
Move to the previous line in the field.
.RE

.sp
.ne 2
.na
\fBREQ_NEXT_WORD\fR
.ad
.RS 20n
Move to the next word in the field.
.RE

.sp
.ne 2
.na
\fBREQ_PREV_WORD\fR
.ad
.RS 20n
Move to the previous word in the field.
.RE

.sp
.ne 2
.na
\fBREQ_BEG_FIELD\fR
.ad
.RS 20n
Move to the first char in the field.
.RE

.sp
.ne 2
.na
\fBREQ_END_FIELD\fR
.ad
.RS 20n
Move after the last char in the field.
.RE

.sp
.ne 2
.na
\fBREQ_BEG_LINE\fR
.ad
.RS 20n
Move to the beginning of the line.
.RE

.sp
.ne 2
.na
\fBREQ_END_LINE\fR
.ad
.RS 20n
Move after the last char in the line.
.RE

.sp
.ne 2
.na
\fBREQ_LEFT_CHAR\fR
.ad
.RS 20n
Move left in the field.
.RE

.sp
.ne 2
.na
\fBREQ_RIGHT_CHAR\fR
.ad
.RS 20n
Move right in the field.
.RE

.sp
.ne 2
.na
\fBREQ_UP_CHAR\fR
.ad
.RS 20n
Move up in the field.
.RE

.sp
.ne 2
.na
\fBREQ_DOWN_CHAR\fR
.ad
.RS 20n
Move down in the field.
.RE

.sp
.ne 2
.na
\fBREQ_NEW_LINE\fR
.ad
.RS 20n
Insert/overlay a new line.
.RE

.sp
.ne 2
.na
\fBREQ_INS_CHAR\fR
.ad
.RS 20n
Insert the blank character at the cursor.
.RE

.sp
.ne 2
.na
\fBREQ_INS_LINE\fR
.ad
.RS 20n
Insert a blank line at the cursor.
.RE

.sp
.ne 2
.na
\fBREQ_DEL_CHAR\fR
.ad
.RS 20n
Delete the character at the cursor.
.RE

.sp
.ne 2
.na
\fBREQ_DEL_PREV\fR
.ad
.RS 20n
Delete the character before the cursor.
.RE

.sp
.ne 2
.na
\fBREQ_DEL_LINE\fR
.ad
.RS 20n
Delete the line at the cursor.
.RE

.sp
.ne 2
.na
\fBREQ_DEL_WORD\fR
.ad
.RS 20n
Delete the word at the cursor.
.RE

.sp
.ne 2
.na
\fBREQ_CLR_EOL\fR
.ad
.RS 20n
Clear to the end of the line.
.RE

.sp
.ne 2
.na
\fBREQ_CLR_EOF\fR
.ad
.RS 20n
Clear to the end of the field.
.RE

.sp
.ne 2
.na
\fBREQ_CLR_FIELD\fR
.ad
.RS 20n
Clear the entire field.
.RE

.sp
.ne 2
.na
\fBREQ_OVL_MODE\fR
.ad
.RS 20n
Enter overlay mode.
.RE

.sp
.ne 2
.na
\fBREQ_INS_MODE\fR
.ad
.RS 20n
Enter insert mode.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_FLINE\fR
.ad
.RS 20n
Scroll the field forward a line.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_BLINE\fR
.ad
.RS 20n
Scroll the field backward a line.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_FPAGE\fR
.ad
.RS 20n
Scroll the field forward a page.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_BPAGE \fR
.ad
.RS 20n
Scroll the field backward a page.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_FHPAGE\fR
.ad
.RS 20n
Scroll the field forward half a page.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_BHPAGE\fR
.ad
.RS 20n
Scroll the field backward half a page.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_FCHAR\fR
.ad
.RS 20n
Horizontal scroll forward a character.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_BCHAR\fR
.ad
.RS 20n
Horizontal scroll backward a character
.RE

.sp
.ne 2
.na
\fBREQ_SCR_HFLINE\fR
.ad
.RS 20n
Horizontal scroll forward a line.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_HBLINE\fR
.ad
.RS 20n
Horizontal scroll backward a line.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_HFHALF\fR
.ad
.RS 20n
Horizontal scroll forward half a line.
.RE

.sp
.ne 2
.na
\fBREQ_SCR_HBHALF\fR
.ad
.RS 20n
Horizontal scroll backward half a line.
.RE

.sp
.ne 2
.na
\fBREQ_VALIDATION\fR
.ad
.RS 20n
Validate field.
.RE

.sp
.ne 2
.na
\fBREQ_PREV_CHOICE\fR
.ad
.RS 20n
Display the previous field choice.
.RE

.sp
.ne 2
.na
\fBREQ_NEXT_CHOICE\fR
.ad
.RS 20n
Display the next field choice.
.RE

.SH RETURN VALUES
.sp
.LP
The \fBform_driver()\fR function returns one of the following:
.sp
.ne 2
.na
\fBE_OK\fR
.ad
.RS 21n
The function returned successfully.
.RE

.sp
.ne 2
.na
\fBE_SYSTEM_ERROR\fR
.ad
.RS 21n
System error.
.RE

.sp
.ne 2
.na
\fBE_BAD_ARGUMENT\fR
.ad
.RS 21n
An argument is incorrect.
.RE

.sp
.ne 2
.na
\fBE_NOT_POSTED\fR
.ad
.RS 21n
The form is not posted.
.RE

.sp
.ne 2
.na
\fBE_INVALID_FIELD\fR
.ad
.RS 21n
The field contents are invalid.
.RE

.sp
.ne 2
.na
\fBE_BAD_STATE\fR
.ad
.RS 21n
The routine was called from an initialization or termination function.
.RE

.sp
.ne 2
.na
\fBE_REQUEST_DENIED\fR
.ad
.RS 21n
The form driver request failed.
.RE

.sp
.ne 2
.na
\fBE_UNKNOWN_COMMAND\fR
.ad
.RS 21n
An unknown request was passed to the form driver.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
MT-Level	Unsafe
.TE

.SH SEE ALSO
.sp
.LP
.BR curses (3CURSES),
.BR forms (3CURSES),
.BR attributes (7)
.SH NOTES
.sp
.LP
The header <\fBform.h\fR> automatically includes the headers <\fBeti.h\fR> and
<\fBcurses.h\fR>.