Cannot intercept AltChar event

[smallB007]

Hi,
I've tried to distinguish between char and altchar events by doing:

let convert = |ev: &cursive::event::Event| match ev {
        Event::AltChar(_) => {
            eprintln!("Alt char");
            return false;
        }
        Event::Char(_) => {
            eprintln!("char");
            return true;
        }
        _ => {
            eprintln!("Not a char");
            return false;
        }
    };

Unfortunately, altchar is seen as Char(_) and I wasn't able to react on AltChar event. Could you please advice me how am I suppose to do it?
Thank you

[gyscos]

Hi,

This looks like the correct way to do it. If you don't see alt events, it's possible your terminal emulator (or an intermediary, like screen/tmux) is not properly sending these events to the application at all.

You can try running the key_codes example to see what is received when you press alt+letter.

It's also possible the backend is not properly reading these. What os are you running? What cursive backend?

[smallB007]

Hi,
I've followed your suggestion. The results are:
Shift+char generates char event
Alt+char generetes Esc and char events

I'm using ubuntu, cursive backend is default.

[massimo79m]

I don't know on ubuntu, but on macos the default backend is curses, that has some problems with CTRL/ALT.
Try to force another backend with

[dependencies.cursive]
version = "0.20.0"
default-features = false
features = ["crossterm-backend"]