Return A control connection status. false means A control lost control. The possible reason is that A control is turned off or loses connection with the aircraft.
Return the connection status of App in A control. false means App in A control lost control. The possible reason is that the App in A control has exited, please reopen the App in A control.
Return B control connection status.false means B control lost control. The possible reason is that B control is not connected to the frequency, turns off or loses connection with the aircraft.
Return the connection status of App in B control.false means App in B control lost control. The possible reason is that the App in B control has exited, please reopen the App in B control.