Disables use of certain terminal capabilities.
Curses Library (libcurses.a)
#include <curses.h>
void filter(void);
The filter subroutine changes the algorithm for initialising terminal capabilities that assume that the terminal has more than one line. A subsequent call to the initscr or newterm subroutine performs the following actions:
Any call to the filter subroutine must precede the call to the initscr or newterm subroutine.