import Cocoa
let px = Float(CommandLine.arguments[1])!, py = Float(CommandLine.arguments[2])!
let sw = AXUIElementCreateSystemWide()
var el: AXUIElement?
let r = AXUIElementCopyElementAtPosition(sw, px, py, &el)
print("hitResult=\(r.rawValue)")
if let el {
    func attr(_ e: AXUIElement, _ a: String) -> String {
        var v: CFTypeRef?
        guard AXUIElementCopyAttributeValue(e, a as CFString, &v) == .success else { return "?" }
        return "\(v!)"
    }
    print("role=\(attr(el, kAXRoleAttribute)) title=\(attr(el, kAXTitleAttribute)) desc=\(attr(el, kAXDescriptionAttribute))")
    var pid: pid_t = 0; AXUIElementGetPid(el, &pid)
    let owner = NSRunningApplication(processIdentifier: pid)?.localizedName ?? "?"
    print("ownerPid=\(pid) owner=\(owner)")
}