use_env(3curses)

use_env -- specify source of screen size information

Synopsis

cc [options] file -lcurses

#include <curses.h>

void use_env(bool boolval);

Description

The use_env(3curses) 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 and environment variables. The initial value is TRUE.

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

Return value

The function does not return a value.

Errors

No errors are defined.

Standards Conformance

The Single UNIX Specification, Version 2; The Open Group.

References

del_curterm(3curses), initscr(3curses), curses(4)