diff -r 24994035a0e0 -r 33eca3f0a9aa QTfrontend/hwform.h
--- a/QTfrontend/hwform.h	Fri May 31 21:34:32 2019 +0300
+++ b/QTfrontend/hwform.h	Fri May 31 21:10:17 2019 +0200
@@ -132,6 +132,7 @@
         void EditWeapons(QString oldWeaponsName, QString newWeaponsName, QString ammo);
         void onFrontendFullscreen(bool value);
         void onFrontendEffects(bool value);
+        void onFrontendSoundsToggled(bool value);
         void Music(bool checked);
         void UpdateCampaignPage(int index);
         void UpdateCampaignPageTeam(int index);