Detect Mission Control / Exposé Mode in Swift (macOS 26 Tahoe)

DetectMissionControl.swift

func isMissionControlActive() -> Bool {
	let windowList = (CGWindowListCopyWindowInfo([.optionOnScreenOnly], CGWindowID(0)) as? [[String: Any]]) ?? [[:]]
	for windowInfo in windowList {
		if let windowOwnerPID = windowInfo["kCGWindowOwnerPID"] as? pid_t,
		   let app = NSRunningApplication(processIdentifier: windowOwnerPID),
		   app.bundleIdentifier == "com.apple.dock"
		{
			if windowInfo["kCGWindowLayer"] as? Int == 18 && windowInfo["kCGWindowSharingState"] as? Bool == false {
				if let bounds = windowInfo["kCGWindowBounds"] as? NSDictionary,
				   bounds["X"] as? Int == 0, bounds["Y"] as? Int == 0 {
					return true
				}
			}
		}
	}
	return false
}