egui/examples/serial_windows/src/main.rs
Emil Ernerfeldt cb77458f70
eframe error handling (#2433)
* eframe::run_native: return errors instead of crashing

* Detect and handle glutin errors

* egui_demo_app: silence wgpu log spam

* Add trace logs for why eframe is shutting down

* Fix: only save App state once on Mac

* Handle Winit failure

* Log where we load app state from

* Don't panic on zero-sized window

* Clamp loaded window size to not be too tiny to see

* Simplify code: more shared code in window_builder

* Improve code readability

* Fix wasm32 build

* fix android

* Update changelog
2022-12-12 15:16:32 +01:00

54 lines
1.5 KiB
Rust

#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
use eframe::egui;
fn main() -> Result<(), eframe::EframeError> {
if cfg!(target_os = "macos") {
eprintln!("WARNING: this example does not work on Mac! See https://github.com/emilk/egui/issues/1918");
}
let options = eframe::NativeOptions {
run_and_return: true,
initial_window_size: Some(egui::vec2(320.0, 240.0)),
..Default::default()
};
eprintln!("Starting first window…");
eframe::run_native(
"First Window",
options.clone(),
Box::new(|_cc| Box::new(MyApp::default())),
)?;
std::thread::sleep(std::time::Duration::from_secs(2));
eprintln!("Starting second window…");
eframe::run_native(
"Second Window",
options.clone(),
Box::new(|_cc| Box::new(MyApp::default())),
)?;
std::thread::sleep(std::time::Duration::from_secs(2));
eprintln!("Starting third window…");
eframe::run_native(
"Third Window",
options,
Box::new(|_cc| Box::new(MyApp::default())),
)
}
#[derive(Default)]
struct MyApp {}
impl eframe::App for MyApp {
fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
egui::CentralPanel::default().show(ctx, |ui| {
if ui.button("Close").clicked() {
eprintln!("Pressed Close button");
frame.close();
}
});
}
}