Disable echo and set raw terminal mode via ANSI escape sequence or X11 escape sequence

Question

Is there possibility to disable echo (except ESC[8m which only hides text) programatically in remote terminal? Any equivalent for stty -echo?

Is there also any escape command to enable raw mode (equivalent of stty raw) in remote terminal? Without raw mode getchar works only after ENTER press.

Answer 1

Unfortunately, it seems that there is not a way to do this just using escape codes of any kind. You will have to take a look at termios.h. If you need to do this low-level and can't use C, see How do i read single character input from keyboard using nasm (assembly) under ubuntu?, other than that, try searching for "non-canonical terminal input" (Canonical vs. non-canonical terminal input)