Multiple keys on a keyboard EventListener

[Whatevermajorloser]

Is it possible to do something like this? So if Cmd + O are pressed, it gets triggered?

[Whatevermajorloser · Accepted solution]

Nevermind, figured it out:

dlg.addEventListener ("keydown", function (k) {keyListen(k)}); 
function keyListen(k){
    if(ScriptUI.environment.keyboardState.metaKey && k.keyName == "O"){
        // do something
        return;
    }
}

It works, but for some reason my Mac emits the alert sound as soon as it's finished. Anyone know why?