winit 0.29.9

Cross-platform window creation library.
Documentation 
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#![allow(clippy::single_match)]

// This example is used by developers to test various window functions.

use simple_logger::SimpleLogger;
use winit::{
    dpi::LogicalSize,
    event::{ElementState, Event, KeyEvent, WindowEvent},
    event_loop::{DeviceEvents, EventLoop},
    keyboard::Key,
    window::{WindowBuilder, WindowButtons},
};

#[path = "util/fill.rs"]
mod fill;

fn main() -> Result<(), impl std::error::Error> {
    SimpleLogger::new().init().unwrap();
    let event_loop = EventLoop::new().unwrap();

    let window = WindowBuilder::new()
        .with_title("A fantastic window!")
        .with_inner_size(LogicalSize::new(300.0, 300.0))
        .build(&event_loop)
        .unwrap();

    eprintln!("Window Button keys:");
    eprintln!("  (F) Toggle close button");
    eprintln!("  (G) Toggle maximize button");
    eprintln!("  (H) Toggle minimize button");

    event_loop.listen_device_events(DeviceEvents::Always);

    event_loop.run(move |event, elwt| {
        if let Event::WindowEvent { window_id, event } = event {
            match event {
                WindowEvent::KeyboardInput {
                    event:
                        KeyEvent {
                            logical_key: key,
                            state: ElementState::Pressed,
                            ..
                        },
                    ..
                } => match key.as_ref() {
                    Key::Character("F" | "f") => {
                        let buttons = window.enabled_buttons();
                        window.set_enabled_buttons(buttons ^ WindowButtons::CLOSE);
                    }
                    Key::Character("G" | "g") => {
                        let buttons = window.enabled_buttons();
                        window.set_enabled_buttons(buttons ^ WindowButtons::MAXIMIZE);
                    }
                    Key::Character("H" | "h") => {
                        let buttons = window.enabled_buttons();
                        window.set_enabled_buttons(buttons ^ WindowButtons::MINIMIZE);
                    }
                    _ => (),
                },
                WindowEvent::CloseRequested if window_id == window.id() => elwt.exit(),
                WindowEvent::RedrawRequested => {
                    fill::fill_window(&window);
                }
                _ => (),
            }
        }
    })
}