1 #[cfg(not(target_arch = "wasm32"))]
main()2 fn main() {
3 use simple_logger::SimpleLogger;
4 use winit::{
5 event::{Event, WindowEvent},
6 event_loop::{ControlFlow, EventLoop},
7 window::WindowBuilder,
8 };
9
10 #[derive(Debug, Clone, Copy)]
11 enum CustomEvent {
12 Timer,
13 }
14
15 SimpleLogger::new().init().unwrap();
16 let event_loop = EventLoop::<CustomEvent>::with_user_event();
17
18 let _window = WindowBuilder::new()
19 .with_title("A fantastic window!")
20 .build(&event_loop)
21 .unwrap();
22
23 // `EventLoopProxy` allows you to dispatch custom events to the main Winit event
24 // loop from any thread.
25 let event_loop_proxy = event_loop.create_proxy();
26
27 std::thread::spawn(move || {
28 // Wake up the `event_loop` once every second and dispatch a custom event
29 // from a different thread.
30 loop {
31 std::thread::sleep(std::time::Duration::from_secs(1));
32 event_loop_proxy.send_event(CustomEvent::Timer).ok();
33 }
34 });
35
36 event_loop.run(move |event, _, control_flow| {
37 *control_flow = ControlFlow::Wait;
38
39 match event {
40 Event::UserEvent(event) => println!("user event: {:?}", event),
41 Event::WindowEvent {
42 event: WindowEvent::CloseRequested,
43 ..
44 } => *control_flow = ControlFlow::Exit,
45 _ => (),
46 }
47 });
48 }
49
50 #[cfg(target_arch = "wasm32")]
main()51 fn main() {
52 panic!("This example is not supported on web.");
53 }
54