raw()
Class Public methods
Put the terminal into raw mode.
Raw mode is similar to ::cbreak
mode, in that characters typed are immediately passed through to the user
program.
The differences are that in raw mode, the interrupt, quit, suspend, and
flow control characters are all passed through uninterpreted, instead of
generating a signal. The behavior of the BREAK key depends on other bits in
the tty driver that are not set by curses.