xref: /illumos-gate/usr/src/man/man3xcurses/use_env.3xcurses (revision fb12490ab4d1e87e7a63e457dd4fba1ea34c402a)
te
Copyright (c) 1990, 1995 by Mortice Kern Systems Inc. All Rights Reserved Portions Copyright (c) 1999, 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]
USE_ENV 3XCURSES "Jun 5, 2002"
NAME
use_env - specify source of screen size information
SYNOPSIS

cc [ flag... ] file... -I /usr/xpg4/include  -L  /usr/xpg4/lib \e
 -R  /usr/xpg4/lib  -lcurses  [ library... ]

c89 [ flag... ] file... -lcurses [ library... ]

#include <curses.h>

void use_env(bool boolval);
PARAMETERS
boolval

Is a Boolean expression.

DESCRIPTION

The use_env() function specifies the technique by which the implementation determines the size of the screen. If boolval is FALSE, the implementation uses the values of lines and columns specified in the terminfo database. If boolval is TRUE, the implementation uses the LINES and COLUMNS environmental variables. The initial value is TRUE.

Any call to use_env() must precede calls to initscr(3XCURSES), newterm(3XCURSES), or setupterm(3XCURSES).

RETURN VALUES

The use_env() function does not return a value.

ERRORS

No errors are defined.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard
MT-Level Unsafe
SEE ALSO

del_curterm (3XCURSES), initscr (3XCURSES), libcurses (3XCURSES), attributes (7), standards (7)