use gtk::prelude::*; use gtk::{glib, Application, ApplicationWindow}; const APP_ID: &str = "de.cscherr.vshot"; fn main() -> glib::ExitCode { // Create a new application let app = Application::builder().application_id(APP_ID).build(); // Connect to "activate" signal of `app` app.connect_activate(build_ui); // Run the application app.run() } fn build_ui(app: &Application) { // Create a window and set the title let window = ApplicationWindow::builder() .application(app) .title("vshot") .build(); // Present window window.present(); }