refs #927, added audio button in keypad area

src/blackgui/components/mainkeypadareacomponent.h

@@ -28,7 +28,6 @@ class QWidget;
 
 namespace BlackMisc { namespace Simulation { class CSimulatedAircraft; } }
 namespace Ui { class CMainKeypadAreaComponent; }
-
 namespace BlackGui
 {
     namespace Components
@@ -67,6 +66,9 @@ namespace BlackGui
             //! Ident pressed
             void identPressed();
 
+            //! Request audio
+            void audioPressed();
+
         public slots:
             //! Main info area changed
             void onMainInfoAreaChanged(int currentTabIndex, QList<int> dockedIndexes, QList<int> floatingIndexes);