USE_ENV(3XCURSES) X/Open Curses Library Functions USE_ENV(3XCURSES)

use_env - specify source of screen size information

cc [ flag... ] file... -I /usr/xpg4/include  -L  /usr/xpg4/lib \
 -R  /usr/xpg4/lib  -lcurses  [ library... ]
c89 [ flag... ] file... -lcurses [ library... ]
#include <curses.h>
void use_env(bool boolval);

boolval
Is a Boolean expression.

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).

The use_env() function does not return a value.

No errors are defined.

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard
MT-Level Unsafe

del_curterm(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5)

June 5, 2002 OmniOS