GCMouse.DidDisconnectMessage
A message that posts after a mouse accessory disconnects from the device.
Declaration
struct DidDisconnectMessageOverview
Use the didDisconnect identifier with NotificationCenter to listen for this message.
let observation = NotificationCenter.default.addObserver(of: GCMouse.self, for: .didDisconnect) { message in
let mouse = message.mouse
}