Fix render to main crashing in fullscreen.

When hiding the menubar (for going fullscreen with render to main),
keep a functionally-duplicate menubar around for servicing menubar
actions.

Source/Core/DolphinWX/Frame.cpp

@@ -318,7 +318,7 @@ CFrame::CFrame(wxFrame* parent,
 		long style)
 	: CRenderFrame(parent, id, title, pos, size, style)
 	, g_pCodeWindow(nullptr), g_NetPlaySetupDiag(nullptr), g_CheatsWindow(nullptr)
-	, m_SavedPerspectives(nullptr), m_ToolBar(nullptr)
+	, m_menubar_shadow(nullptr), m_SavedPerspectives(nullptr), m_ToolBar(nullptr)
 	, m_GameListCtrl(nullptr), m_Panel(nullptr)
 	, m_RenderFrame(nullptr), m_RenderParent(nullptr)
 	, m_LogWindow(nullptr), m_LogConfigWindow(nullptr)
@@ -353,7 +353,10 @@ CFrame::CFrame(wxFrame* parent,
 		GetStatusBar()->Hide();
 
 	// Give it a menu bar
-	CreateMenu();
+	wxMenuBar* menubar_active = CreateMenu();
+	SetMenuBar(menubar_active);
+	// Create a menubar to service requests while the real menubar is hidden from the screen
+	m_menubar_shadow = CreateMenu();
 
 	// ---------------
 	// Main panel
@@ -450,6 +453,10 @@ CFrame::~CFrame()
 	ClosePages();
 
 	delete m_Mgr;
+
+	// This object is owned by us, not wxw
+	m_menubar_shadow->Destroy();
+	m_menubar_shadow = nullptr;
 }
 
 bool CFrame::RendererIsFullscreen()
@@ -1271,9 +1278,9 @@ void CFrame::DoFullscreen(bool enable_fullscreen)
 			DoToggleToolbar(SConfig::GetInstance().m_InterfaceToolbar);
 
 			// Recreate the menubar if needed.
-			if (GetMenuBar() == nullptr)
+			if (wxFrame::GetMenuBar() == nullptr)
 			{
-				CreateMenu();
+				SetMenuBar(CreateMenu());
 			}
 
 			// Show statusbar if enabled

Source/Core/DolphinWX/Frame.h

@@ -129,6 +129,7 @@ public:
 	void UpdateTitle(const std::string &str);
 
 	const CGameListCtrl *GetGameListCtrl() const;
+	virtual wxMenuBar* GetMenuBar() const override;
 
 #ifdef __WXGTK__
 	Common::Event panic_event;
@@ -199,9 +200,11 @@ private:
 	wxBitmap m_Bitmaps[EToolbar_Max];
 	wxBitmap m_BitmapsMenu[EToolbar_Max];
 
+	wxMenuBar* m_menubar_shadow;
+
 	void PopulateToolbar(wxToolBar* toolBar);
 	void RecreateToolbar();
-	void CreateMenu();
+	wxMenuBar* CreateMenu();
 
 	// Utility
 	wxString GetMenuLabel(int Id);

Source/Core/DolphinWX/FrameTools.cpp

@@ -108,13 +108,24 @@ extern "C" {
 class InputConfig;
 class wxFrame;
 
+// This override allows returning a fake menubar object while removing the real one from the screen
+wxMenuBar* CFrame::GetMenuBar() const
+{
+	if (m_frameMenuBar)
+	{
+		return m_frameMenuBar;
+	}
+	else
+	{
+		return m_menubar_shadow;
+	}
+}
+
 // Create menu items
 // ---------------------
-void CFrame::CreateMenu()
+wxMenuBar* CFrame::CreateMenu()
 {
-	if (GetMenuBar()) GetMenuBar()->Destroy();
+	wxMenuBar* menubar = new wxMenuBar();
-
-	wxMenuBar *m_MenuBar = new wxMenuBar();
 
 	// file menu
 	wxMenu* fileMenu = new wxMenu;
@@ -137,7 +148,7 @@ void CFrame::CreateMenu()
 	fileMenu->Append(IDM_BROWSE, _("&Browse for ISOs..."));
 	fileMenu->AppendSeparator();
 	fileMenu->Append(wxID_EXIT, _("E&xit") + wxString("\tAlt+F4"));
-	m_MenuBar->Append(fileMenu, _("&File"));
+	menubar->Append(fileMenu, _("&File"));
 
 	// Emulation menu
 	wxMenu* emulationMenu = new wxMenu;
@@ -197,7 +208,7 @@ void CFrame::CreateMenu()
 	for (unsigned int i = 1; i <= State::NUM_STATES; i++)
 		loadMenu->Append(IDM_LOADLAST1 + i - 1, GetMenuLabel(HK_LOAD_LAST_STATE_1 + i - 1));
 
-	m_MenuBar->Append(emulationMenu, _("&Emulation"));
+	menubar->Append(emulationMenu, _("&Emulation"));
 
 	// Options menu
 	wxMenu* pOptionsMenu = new wxMenu;
@@ -213,7 +224,7 @@ void CFrame::CreateMenu()
 		pOptionsMenu->AppendSeparator();
 		g_pCodeWindow->CreateMenuOptions(pOptionsMenu);
 	}
-	m_MenuBar->Append(pOptionsMenu, _("&Options"));
+	menubar->Append(pOptionsMenu, _("&Options"));
 
 	// Tools menu
 	wxMenu* toolsMenu = new wxMenu;
@@ -236,7 +247,7 @@ void CFrame::CreateMenu()
 	toolsMenu->AppendCheckItem(IDM_CONNECT_WIIMOTE4, GetMenuLabel(HK_WIIMOTE4_CONNECT));
 	toolsMenu->AppendCheckItem(IDM_CONNECT_BALANCEBOARD, GetMenuLabel(HK_BALANCEBOARD_CONNECT));
 
-	m_MenuBar->Append(toolsMenu, _("&Tools"));
+	menubar->Append(toolsMenu, _("&Tools"));
 
 	wxMenu* viewMenu = new wxMenu;
 	viewMenu->AppendCheckItem(IDM_TOGGLE_TOOLBAR, _("Show &Toolbar"));
@@ -326,11 +337,11 @@ void CFrame::CreateMenu()
 
 
 
-	m_MenuBar->Append(viewMenu, _("&View"));
+	menubar->Append(viewMenu, _("&View"));
 
 	if (g_pCodeWindow)
 	{
-		g_pCodeWindow->CreateMenu(SConfig::GetInstance().m_LocalCoreStartupParameter, m_MenuBar);
+		g_pCodeWindow->CreateMenu(SConfig::GetInstance().m_LocalCoreStartupParameter, menubar);
 	}
 
 	// Help menu
@@ -342,10 +353,9 @@ void CFrame::CreateMenu()
 	helpMenu->Append(IDM_HELPGITHUB, _("Dolphin at &GitHub"));
 	helpMenu->AppendSeparator();
 	helpMenu->Append(wxID_ABOUT, _("&About..."));
-	m_MenuBar->Append(helpMenu, _("&Help"));
+	menubar->Append(helpMenu, _("&Help"));
 
-	// Associate the menu bar with the frame
+	return menubar;
-	SetMenuBar(m_MenuBar);
 }
 
 wxString CFrame::GetMenuLabel(int Id)