diff --git a/src/common/menu/menu.cpp b/src/common/menu/menu.cpp
index 9f2cdf168..e244710eb 100644
--- a/src/common/menu/menu.cpp
+++ b/src/common/menu/menu.cpp
@@ -132,12 +132,40 @@ DEFINE_ACTION_FUNCTION_NATIVE(DMenuDescriptor, GetDescriptor, GetMenuDescriptor)
 	ACTION_RETURN_OBJECT(GetMenuDescriptor(name.GetIndex()));
 }
 
+void DListMenuDescriptor::Reset()
+{
+	// Reset the default settings (ignore all other values in the struct)
+	mSelectOfsX = 0;
+	mSelectOfsY = 0;
+	mSelector.SetInvalid();
+	mDisplayTop = 0;
+	mXpos = 0;
+	mYpos = 0;
+	mLinespacing = 0;
+	mNetgameMessage = "";
+	mFont = NULL;
+	mFontColor = CR_UNTRANSLATED;
+	mFontColor2 = CR_UNTRANSLATED;
+	mFromEngine = false;
+}
+
+
 size_t DListMenuDescriptor::PropagateMark()
 {
 	for (auto item : mItems) GC::Mark(item);
 	return 0;
 }
 
+void DOptionMenuDescriptor::Reset()
+{
+	// Reset the default settings (ignore all other values in the struct)
+	mPosition = 0;
+	mScrollTop = 0;
+	mIndent = 0;
+	mDontDim = 0;
+	mFont = BigUpper;
+}
+
 size_t DOptionMenuDescriptor::PropagateMark()
 {
 	for (auto item : mItems) GC::Mark(item);
diff --git a/src/common/menu/menu.h b/src/common/menu/menu.h
index 2a0f7399b..f8cbe14d1 100644
--- a/src/common/menu/menu.h
+++ b/src/common/menu/menu.h
@@ -89,23 +89,7 @@ public:
 	bool mCenter;
 	bool mFromEngine;
 
-	void Reset()
-	{
-		// Reset the default settings (ignore all other values in the struct)
-		mSelectOfsX = 0;
-		mSelectOfsY = 0;
-		mSelector.SetInvalid();
-		mDisplayTop = 0;
-		mXpos = 0;
-		mYpos = 0;
-		mLinespacing = 0;
-		mNetgameMessage = "";
-		mFont = NULL;
-		mFontColor = CR_UNTRANSLATED;
-		mFontColor2 = CR_UNTRANSLATED;
-		mFromEngine = false;
-	}
-	
+	void Reset();
 	size_t PropagateMark() override;
 };
 
@@ -138,20 +122,9 @@ public:
 
 	void CalcIndent();
 	DMenuItemBase *GetItem(FName name);
-	void Reset()
-	{
-		// Reset the default settings (ignore all other values in the struct)
-		mPosition = 0;
-		mScrollTop = 0;
-		mIndent = 0;
-		mDontDim = 0;
-		mFont = BigUpper;
-
-	}
+	void Reset();
 	size_t PropagateMark() override;
-	~DOptionMenuDescriptor()
-	{
-	}
+	~DOptionMenuDescriptor() = default;
 };
 						
 
@@ -289,6 +262,8 @@ void M_StartMessage(const char *message, int messagemode, FName action = NAME_No
 DMenu *StartPickerMenu(DMenu *parent, const char *name, FColorCVar *cvar);
 void M_MarkMenus();
 FTextureID GetMenuTexture(const char* const name);
+void DeinitMenus();
+bool M_Active();
 
 
 struct IJoystickConfig;
diff --git a/src/common/menu/resolutionmenu.cpp b/src/common/menu/resolutionmenu.cpp
index 216e6b85f..6074d018a 100644
--- a/src/common/menu/resolutionmenu.cpp
+++ b/src/common/menu/resolutionmenu.cpp
@@ -32,8 +32,6 @@
 **
 */
 
-#include "doomdef.h"
-#include "doomstat.h"
 #include "c_dispatch.h"
 #include "c_cvars.h"
 #include "v_video.h"