Function run_ui 

pub fn run_ui<F>(config: AppConfig, ui: F) -> Result<(), RunError>
where
    F: FnMut(&Ui) + 'static,

Runs an application whose persistent state is captured by one UI closure.

This is the smallest entry point for applications that only build UI. Move to run_frame when the closure needs fallibility, exit control, add-ons, or the current GPU generation. Use run with an Application implementation when initialization, events, GPU recovery, or teardown hooks are required. All three entries use the same runtime and recovery state machine.

Examples found in repository

examples/hello.rs (lines 6-16)

fn main() -> Result<(), RunError> {
    let mut clicks = 0;

    run_ui(AppConfig::default(), move |ui| {
        ui.window("Hello")
            .size([360.0, 160.0], Condition::FirstUseEver)
            .build(|| {
                if ui.button("Click me") {
                    clicks += 1;
                }
                ui.same_line();
                ui.text(format!("Clicks: {clicks}"));
            });
    })
}