MouseMove events don't get discarded on MacOS

[dtitov]

I've tried running grab example on MacOS Sonoma - and it works, the tab KeyPress gets discarded. However, when I tried to achieve the same behavior for MouseMove events, it didn't work:

use rdev::{grab, Event};
use rdev::EventType::MouseMove;

fn main() {
    if let Err(error) = grab(callback) {
        println!("Error: {:?}", error)
    }
}

fn callback(event: Event) -> Option<Event> {
    match event.event_type {
        MouseMove { x, y } => {
            println!("Mouse moved: [{x}, {y}]");
            None
        }
        _ => Some(event),
    }
}

Is it not possible to discard MouseMove the same way as we can discard KeyPress events?