88 lines
4.0 KiB
Plaintext
88 lines
4.0 KiB
Plaintext
'\" t
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.\"***************************************************************************
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.\" Copyright (c) 1998-2018,2019 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_info.3x,v 1.16 2019/11/30 21:02:29 tom Exp $
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.TH form_field_info 3X ""
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.ie \n(.g .ds `` \(lq
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.el .ds `` ``
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.ie \n(.g .ds '' \(rq
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.el .ds '' ''
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.SH NAME
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\fBdynamic_field_info\fP,
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\fBfield_info\fR \- retrieve field characteristics
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.SH SYNOPSIS
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\fB#include <form.h>\fR
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.br
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int field_info(const FIELD *field, int *rows, int *cols,
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int *frow, int *fcol, int *nrow, int *nbuf);
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.br
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int dynamic_field_info(const FIELD *field, int *rows, int *cols, int *max);
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.br
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.SH DESCRIPTION
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The function \fBfield_info\fR returns the sizes and other attributes passed in
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to the field at its creation time.
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The attributes are: height, width, row of
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upper-left corner, column of upper-left corner, number off-screen rows, and
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number of working buffers.
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.PP
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The function \fBdynamic_field_info\fR returns the actual size of the field, and
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its maximum possible size.
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If the field has no size limit, the location
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addressed by the third argument will be set to 0.
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A field can be made dynamic
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by turning off the \fBO_STATIC\fR option with \fBfield_opts_off\fR.
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.SH RETURN VALUE
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These routines return 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_SYSTEM_ERROR
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System error occurred (see \fBerrno\fR(3)).
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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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.SH SEE ALSO
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\fBcurses\fR(3X) and related pages whose names begin \*(``form_\*('' for detailed
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descriptions of the entry points.
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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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.PP
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A null (zero pointer) is accepted for any of the return values,
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to ignore that value.
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Not all implementations allow this, e.g., Solaris 2.7 does not.
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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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