use coremidi::{Destinations, Endpoint, Sources}; fn main() { println!("System destinations:"); for (i, destination) in Destinations.into_iter().enumerate() { let display_name = get_display_name(&destination); println!("[{}] {}", i, display_name); } println!(); println!("System sources:"); for (i, source) in Sources.into_iter().enumerate() { let display_name = get_display_name(&source); println!("[{}] {}", i, display_name); } } fn get_display_name(endpoint: &Endpoint) -> String { endpoint .display_name() .unwrap_or_else(|| "[Unknown Display Name]".to_string()) }