ActionManager::toggleMainMenu() should close PostProcessor HUD.

apps/openmw/mwbase/windowmanager.hpp

@@ -129,6 +129,8 @@ namespace MWBase
 
             virtual bool isConsoleMode() const = 0;
 
+            virtual bool isPostProcessorHudVisible() const = 0;
+
             virtual void toggleVisible (MWGui::GuiWindow wnd) = 0;
 
             virtual void forceHide(MWGui::GuiWindow wnd) = 0;

apps/openmw/mwgui/windowmanagerimp.cpp

@@ -1520,6 +1520,11 @@ namespace MWGui
         return mConsole && mConsole->isVisible();
     }
 
+    bool WindowManager::isPostProcessorHudVisible() const
+    {
+        return mPostProcessorHud->isVisible();
+    }
+
     MWGui::GuiMode WindowManager::getMode() const
     {
         if (mGuiModes.empty())

apps/openmw/mwgui/windowmanagerimp.hpp

@@ -169,6 +169,8 @@ namespace MWGui
 
     bool isConsoleMode() const override;
 
+    bool isPostProcessorHudVisible() const override;
+
     void toggleVisible(GuiWindow wnd) override;
 
     void forceHide(MWGui::GuiWindow wnd) override;

apps/openmw/mwinput/actionmanager.cpp

@@ -323,6 +323,12 @@ namespace MWInput
             return;
         }
 
+        if (MWBase::Environment::get().getWindowManager()->isPostProcessorHudVisible())
+        {
+            MWBase::Environment::get().getWindowManager()->togglePostProcessorHud();
+            return;
+        }
+
         if (!MWBase::Environment::get().getWindowManager()->isGuiMode()) //No open GUIs, open up the MainMenu
         {
             MWBase::Environment::get().getWindowManager()->pushGuiMode (MWGui::GM_MainMenu);