Rust, Midi, Programming.
let options = eframe::NativeOptions { viewport: egui::ViewportBuilder::default().with_inner_size([640.0, 480.0]), ..Default::default() }; eframe::run_native( "My egui App", options, Box::new(|_cc| { Box::new(SynthApp { synthesizer, midi_channel: 0, }) }), ) } Here, please don’t forget to rename the