Block terminal input while running a terminal program

Question

When I press enter while my terminal program runs, a new line is added. How can I disable this? I don't want to use ncurses. I am on Ubuntu.

I think there's no way in standard c++. maybe you should use linux's API — ikh, Jan 20 '14 at 09:13
@ikh: I use ANSI codes to move the cursor, so something like that is okay, too! — gartenriese, Jan 20 '14 at 09:15
@n.m: Something like this: ttynew.c_lflag &= ~ECHO; ? Can you elaborate a bit what it exactly does? — gartenriese, Jan 20 '14 at 09:18

score 1 · Accepted Answer · edited May 23 '17 at 12:03

1

Following up n.m's hint, I found this and came up with this:

static struct termios t;
tcgetattr( STDIN_FILENO, &t);
t.c_lflag &= ~ECHO;
tcsetattr( STDIN_FILENO, TCSANOW, &t);

This seems to block all input to the terminal.

edited May 23 '17 at 12:03

Community

answered Jan 20 '14 at 09:53

gartenriese

You *probably* also want to set either non-canonical mode, or "raw" mode, and echo all normal (non-control) characters yourself. See `man termios`. – n. 1.8e9-where's-my-share m. Jan 20 '14 at 10:08

1 Answers1