Mac / Cocoa - Getting a list of windows using Accessibility API

Question

I want to use the Accessibility API to get a list of all windows for a given application (external).

The goal is to check if a certain window is open. First I chec

Answer 1

This works for me in Swift 5.1:

let windowList: CFArray? = CGWindowListCopyWindowInfo(.optionOnScreenOnly, kCGNullWindowID)

for entry in windowList! as Array {

    let ownerName: String = entry.object(forKey: kCGWindowName) as? String ?? "N/A"
    let ownerPID: Int = entry.object(forKey: kCGWindowOwnerPID) as? Int ?? 0
    print("ownerName: \(ownerName), ownerPID:\(ownerPID)")
}