Struct AsyncOverlaySubjects 

pub struct AsyncOverlaySubjects { /* private fields */ }

Available on crate feature async only.

True-async entry point for ImageAnalysisOverlayView.subjects and ImageAnalysisOverlayView.subject(at:) (macOS).

On macOS the subject APIs live on ImageAnalysisOverlayView (Rust: LiveTextInteraction), not directly on ImageAnalysis. Both require macOS 13+ and the crate::ImageAnalysisTypes::VISUAL_LOOK_UP analysis type in the configuration used when the analysis was performed.

Note on subject bounds coordinate space

Bounds are in the same coordinate space that VisionKit uses when populating the overlay view. That is, they are relative to the view’s bounds as configured via setPreferredInteractionTypes and setAnalysis(_:).

Implementations

impl AsyncOverlaySubjects

pub fn new(interaction: &LiveTextInteraction) -> Self

Wrap a LiveTextInteraction for async subject queries.

The interaction must remain alive for as long as the returned futures are pending.

pub fn subjects(&self) -> SubjectsFuture

Asynchronously retrieve all subjects as their bounds rectangles.

Internally calls await overlayView.subjects on the Swift side (requires @MainActor). Each subject’s bounds is accessed synchronously within that actor context.

Returns an empty Vec when no subjects are found or when the analysis did not include crate::ImageAnalysisTypes::VISUAL_LOOK_UP.

pub fn subject_at(&self, x: f64, y: f64) -> SubjectAtFuture

Asynchronously find the subject at the given overlay-coordinate point.

Returns Ok(None) when no subject is present at (x, y).

Trait Implementations

impl Send for AsyncOverlaySubjects