device_query 4.0.1

A basic library for querying keyboard and mouse state on-demand without a window.
Documentation 
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extern crate device_query;

use device_query::{DeviceQuery, DeviceState};

fn main() {
    let device_state = DeviceState::new();
    let mut prev_keys = vec![];
    loop {
        let keys = device_state.get_keys();
        if keys != prev_keys {
            println!("{:?}", keys);
        }
        prev_keys = keys;
    }
}