// Limit this example to only compatible platforms. #[cfg(any( target_os = "windows", target_os = "macos", target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd", target_os = "openbsd" ))] fn main() { use std::{thread::sleep, time::Duration}; use winit::{ event::{Event, WindowEvent}, event_loop::{ControlFlow, EventLoop}, platform::desktop::EventLoopExtDesktop, window::WindowBuilder, }; let mut event_loop = EventLoop::new(); simple_logger::init().unwrap(); let _window = WindowBuilder::new() .with_title("A fantastic window!") .build(&event_loop) .unwrap(); let mut quit = false; while !quit { event_loop.run_return(|event, _, control_flow| { *control_flow = ControlFlow::Wait; if let Event::WindowEvent { event, .. } = &event { // Print only Window events to reduce noise println!("{:?}", event); } match event { Event::WindowEvent { event: WindowEvent::CloseRequested, .. } => { quit = true; } Event::MainEventsCleared => { *control_flow = ControlFlow::Exit; } _ => (), } }); // Sleep for 1/60 second to simulate rendering println!("rendering"); sleep(Duration::from_millis(16)); } } #[cfg(any(target_os = "ios", target_os = "android", target_arch = "wasm32"))] fn main() { println!("This platform doesn't support run_return."); }