A view into the upcoming buffer holding coming character events that are sent if and only if neither the alt or super modifier keys are pressed (check this with !(modifierState & (ModifierState.window | ModifierState.alt)) to predict if char events are actually coming..

Only available on X systems since this information is not given ahead of time elsewhere. (Well, you COULD probably dig it up, but as far as I know right now, it isn't terribly pretty.)

I'm adding this because it is useful to the terminal emulator, but given its platform specificness and potential quirks I'd recommend avoiding it.