1use fltk::{app, button::Button, frame::Frame, group::Flex, prelude::*, window::Window};
2
3fn main() {
4 let app = app::App::default();
5 let mut wind = Window::default().with_size(400, 300);
6 let mut col = Flex::default_fill().column();
7 col.set_margins(120, 80, 120, 80);
8 let mut frame = Frame::default();
9 let mut but = Button::default().with_label("Click me!");
10 col.fixed(&but, 40);
11 col.end();
12 wind.end();
13 wind.show();
14
15 but.set_callback(move |_| frame.set_label("Hello world"));
16
17 app.run().unwrap();
18}