Window Events & State

WindowLifecycle (native per-window): Creating / Visible / Hidden / Focused / Unfocused / Closing / Closed — independent of the app lifecycle. WindowEventKind: Platform / Lifecycle / RedrawRequested / StateChanged.

WindowOperation enumerates every data-only UI-thread op (set title, visibility, size, drag/resize, minimize/maximize/fullscreen, decorations, cursor, focus, close). WindowRequestedState tracks app-requested visible/minimized/maximized/fullscreen/resizable/decorations/ limits/level, distinct from observed state.

use incular::prelude::*;

fn main() {
    let icon = WindowIcon::from_rgba(vec![255u8; 64], 4, 4).expect("icon");
    println!("icon: {}x{}", icon.width(), icon.height());
    let limits = LogicalSizeLimits::new(None, None).expect("limits");
    println!("has max: {}", limits.maximum().is_some());
}

Related: [`WindowHandle`](/docs/api/application/window),
[`Displays`](/docs/api/platform/displays).