$ swiftc -o get_window_title get_window_title.swift && get_window_title 9999

get_menubar_items.swift

import Foundation
import AppKit

func main() -> Int {
    let argv = ProcessInfo.processInfo.arguments
    let pid = Int32(argv[1])!
    print(pid)
    let appRef = AXUIElementCreateApplication(pid)
    var menubar: CFTypeRef?
    AXUIElementCopyAttributeValue(appRef, kAXMenuBarAttribute as CFString, &menubar)

    var children: CFTypeRef?
    AXUIElementCopyAttributeValue(menubar as! AXUIElement, kAXChildrenAttribute as CFString, &children)
    let items = children as? NSArray
    for item in items! {
        var menuLabel: CFTypeRef?
        AXUIElementCopyAttributeValue(item as! AXUIElement, kAXTitleAttribute as CFString, &menuLabel)
        print(menuLabel)
    }

    return 0
}

_ = main()

get_window_title.swift

import Foundation
import AppKit

func main() -> Int {

    let argv = ProcessInfo.processInfo.arguments
    let pid = Int32(argv[1])!
    print(pid)
    let appRef = AXUIElementCreateApplication(pid)
    var window: CFTypeRef?
    var result: AXError = AXUIElementCopyAttributeValue(appRef, kAXFocusedWindowAttribute as CFString, &window)
    if result == .success {
        var title: CFTypeRef?
        AXUIElementCopyAttributeValue(window as! AXUIElement, kAXTitleAttribute as CFString, &title)
        print(title)
    } else {
        print(result.rawValue)
    }

    return 0
}

_ = main()

new_tab_firefox.swift

import Foundation
import AppKit

func main() -> Int {
    let argv = ProcessInfo.processInfo.arguments
    let pid = Int32(argv[1])!
    print(pid)
    let appRef = AXUIElementCreateApplication(pid)

    var menubar: CFTypeRef?
    AXUIElementCopyAttributeValue(appRef, kAXMenuBarAttribute as CFString, &menubar)

    var menuBarItemsRef: CFTypeRef?
    AXUIElementCopyAttributeValue(menubar as! AXUIElement, kAXChildrenAttribute as CFString, &menuBarItemsRef)
    let menuBarItems = menuBarItemsRef as? NSArray
    for item in menuBarItems! {
        var menuLabel: CFTypeRef?
        AXUIElementCopyAttributeValue(item as! AXUIElement, kAXTitleAttribute as CFString, &menuLabel)
        print("menu bar item: \(menuLabel)")
    }
    
    var subMenuRef: CFTypeRef?
    AXUIElementCopyAttributeValue(menuBarItems?[2] as! AXUIElement, kAXChildrenAttribute as CFString, &subMenuRef)
    let subitems = subMenuRef as? NSArray

    var subMenuItemsRef: CFTypeRef?
    AXUIElementCopyAttributeValue(subitems?[0] as! AXUIElement, kAXChildrenAttribute as CFString, &subMenuItemsRef)
    let subMenuItems = subMenuItemsRef as? NSArray
    for item in subMenuItems! {
        var menuLabel: CFTypeRef?
        AXUIElementCopyAttributeValue(item as! AXUIElement, kAXTitleAttribute as CFString, &menuLabel)
        print("submenu item: \(menuLabel)")
    }
    
    AXUIElementPerformAction(subMenuItems?[0] as! AXUIElement, kAXPressAction as CFString)

    return 0
}

_ = main()

require_permission.swift

// 
import Cocoa
class Event: NSObject {
    private var runLoopSource: CFRunLoopSource?
    private var shouldChangeState: Bool = true
    
    override init() {
        let options = NSDictionary(
            object: kCFBooleanTrue,
            forKey: kAXTrustedCheckOptionPrompt.takeUnretainedValue() as NSString
            ) as CFDictionary
        
        AXIsProcessTrustedWithOptions(options)
    }
}

let keyEvent = Event()