151 lines
5.5 KiB
Plaintext
151 lines
5.5 KiB
Plaintext
'\" t
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.\"***************************************************************************
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.\" Copyright 2018-2019,2020 Thomas E. Dickey *
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.\" Copyright 1998-2014,2015 Free Software Foundation, Inc. *
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.\" *
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.\" Permission is hereby granted, free of charge, to any person obtaining a *
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.\" copy of this software and associated documentation files (the *
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.\" "Software"), to deal in the Software without restriction, including *
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.\" without limitation the rights to use, copy, modify, merge, publish, *
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.\" distribute, distribute with modifications, sublicense, and/or sell *
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.\" copies of the Software, and to permit persons to whom the Software is *
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.\" furnished to do so, subject to the following conditions: *
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.\" *
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.\" The above copyright notice and this permission notice shall be included *
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.\" in all copies or substantial portions of the Software. *
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.\" *
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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.\" *
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.\" Except as contained in this notice, the name(s) of the above copyright *
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.\" holders shall not be used in advertising or otherwise to promote the *
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.\" sale, use or other dealings in this Software without prior written *
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.\" authorization. *
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.\"***************************************************************************
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.\"
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.\" $Id: form_field_opts.3x,v 1.27 2020/10/18 00:11:45 tom Exp $
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.TH form_field_opts 3X ""
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.SH NAME
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\fBset_field_opts\fP,
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\fBfield_opts_on\fP,
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\fBfield_opts_off\fP,
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\fBfield_opts\fP \- set and get field options
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.SH SYNOPSIS
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\fB#include <form.h>\fR
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.sp
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\fBint set_field_opts(FIELD *\fP\fIfield\fP\fB, Field_Options \fP\fIopts\fP\fB);\fP
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.br
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\fBField_Options field_opts(const FIELD *\fP\fIfield\fP\fB);\fP
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.sp
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\fBint field_opts_on(FIELD *\fP\fIfield\fP\fB, Field_Options \fP\fIopts\fP\fB);\fP
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.br
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\fBint field_opts_off(FIELD *\fP\fIfield\fP\fB, Field_Options \fP\fIopts\fP\fB);\fP
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.br
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.SH DESCRIPTION
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The function \fBset_field_opts\fR sets all the given field's option bits (field
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option bits may be logically-OR'ed together).
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.PP
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The function \fBfield_opts_on\fR turns on the given option bits, and leaves
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others alone.
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.PP
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The function \fBfield_opts_off\fR turns off the given option bits, and leaves
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others alone.
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.PP
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The function \fBfield_opts\fR returns the field's current option bits.
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.PP
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The following standard options are defined (all are on by default):
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.TP 5
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O_ACTIVE
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The field is visited during processing.
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If this option is off, the field will
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not be reachable by navigation keys.
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Please notice that an invisible field
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appears to be inactive also.
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.TP 5
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O_AUTOSKIP
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Skip to the next field when this one fills.
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.TP 5
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O_BLANK
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The field is cleared whenever a character is entered at the first position.
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.TP 5
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O_EDIT
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The field can be edited.
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.TP 5
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O_NULLOK
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Allow a blank field.
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.TP 5
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O_PASSOK
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Validate field only if modified by user.
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.TP 5
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O_PUBLIC
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The field contents are displayed as data is entered.
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.TP 5
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O_STATIC
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Field buffers are fixed to field's original size.
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Turn this option off to create a dynamic field.
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.TP 5
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O_VISIBLE
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The field is displayed.
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If this option is off, display of the field is
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suppressed.
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.TP 5
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O_WRAP
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Words that do not fit on a line are wrapped to the next line.
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Words are
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blank-separated.
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.PP
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These extension options are defined (extensions are off by default):
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.TP 5
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O_DYNAMIC_JUSTIFY
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Permit dynamic fields to be justified, like static fields.
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.TP 5
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O_NO_LEFT_STRIP
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Preserve leading whitespace in the field buffer, which is normally discarded.
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.TP 5
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O_EDGE_INSERT_STAY
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When inserting into a field up to the boundary position,
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optionally delay the scrolling,
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so that the last inserted character remains visible,
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but advance the cursor to reflect the insertion.
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This allows the form library to display the
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inserted character in one-character fields
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as well as allowing the library to maintain consistent state.
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.TP 5
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O_INPUT_FIELD
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The \fBset_max_field\fP function checks for this extension,
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which allows a dynamic field to shrink if the new
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limit is smaller than the current field size.
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.SH RETURN VALUE
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Except for \fBfield_opts\fR, each routine returns one of the following:
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.TP 5
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.B E_OK
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The routine succeeded.
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.TP 5
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.B E_BAD_ARGUMENT
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Routine detected an incorrect or out-of-range argument.
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.TP 5
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.B E_CURRENT
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The field is the current field.
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.TP 5
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.B E_SYSTEM_ERROR
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System error occurred (see \fBerrno\fR(3)).
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.SH SEE ALSO
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\fBcurses\fR(3X),
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\fBform\fR(3X).
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\fBform_field_just\fR(3X).
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.SH NOTES
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The header file \fB<form.h>\fR automatically includes the header file
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\fB<curses.h>\fR.
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.SH PORTABILITY
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These routines emulate the System V forms library.
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They were not supported on
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Version 7 or BSD versions.
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.SH AUTHORS
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Juergen Pfeifer.
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Manual pages and adaptation for new curses by Eric S. Raymond.
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