Disable X-Plane's built-in voice ATIS when XSwiftBus is active.

src/xswiftbus/plugin.cpp

@@ -66,10 +66,15 @@ namespace XSwiftBus
         // Delay the start of XSwiftBus.
         // http://www.xsquawkbox.net/xpsdk/mediawiki/DeferredInitialization
         XPLMRegisterFlightLoopCallback(startServerDeferred, -1, this);
+
+        m_atisSaved = m_atisEnabled.get();
+        m_atisEnabled.set(0);
     }
 
     CPlugin::~CPlugin()
     {
+        m_atisEnabled.set(m_atisSaved);
+
         XPLMUnregisterFlightLoopCallback(flightLoopCallback, this);
         m_dbusConnection->close();
         m_shouldStop = true;

src/xswiftbus/plugin.h

@@ -72,6 +72,9 @@ namespace XSwiftBus
         CMenu m_planeViewSubMenu;
         CMenuItem planeViewOwnAircraftMenuItem;
 
+        DataRef<xplane::data::sim::atc::atis_enabled> m_atisEnabled;
+        decltype(m_atisEnabled.get()) m_atisSaved = 0;
+
         std::thread m_dbusThread;
         bool m_isRunning = false;
         bool m_shouldStop = false;