winit-sonoma-fix/examples/window_run_return.rs

// 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 winit::{
        event::{Event, WindowEvent},
        event_loop::{ControlFlow, EventLoop},
        platform::desktop::EventLoopExtDesktop,
        window::WindowBuilder,
    };
    let mut event_loop = EventLoop::new();

    let window = WindowBuilder::new()
        .with_title("A fantastic window!")
        .build(&event_loop)
        .unwrap();

    println!("Close the window to continue.");
    event_loop.run_return(|event, _, control_flow| match event {
        Event::WindowEvent {
            event: WindowEvent::CloseRequested,
            ..
        } => *control_flow = ControlFlow::Exit,
        _ => *control_flow = ControlFlow::Wait,
    });
    drop(window);

    let _window_2 = WindowBuilder::new()
        .with_title("A second, fantasticer window!")
        .build(&event_loop)
        .unwrap();

    println!("Wa ha ha! You thought that closing the window would finish this?!");
    event_loop.run_return(|event, _, control_flow| match event {
        Event::WindowEvent {
            event: WindowEvent::CloseRequested,
            ..
        } => *control_flow = ControlFlow::Exit,
        _ => *control_flow = ControlFlow::Wait,
    });

    println!("Okay we're done now for real.");
}

#[cfg(any(target_os = "ios", target_os = "android", target_arch = "wasm32"))]
fn main() {
    println!("This platform doesn't support run_return.");
}