Main menu bar doesn't cover game area

SpaceCadetPinball/fullscrn.cpp

@@ -110,6 +110,8 @@ void fullscrn::window_size_changed()
 {
 	int width, height;
 	SDL_GetRendererOutputSize(winmain::Renderer, &width, &height);
+	int menuHeight = options::Options.ShowMenu ? winmain::MainMenuHeight : 0;
+	height -= menuHeight;
 	auto res = &resolution_array[resolution];
 	ScaleX = static_cast<float>(width) / res->TableWidth;
 	ScaleY = static_cast<float>(height) / res->TableHeight;
@@ -124,7 +126,7 @@ void fullscrn::window_size_changed()
 
 	render::DestinationRect = SDL_Rect
 	{
-		OffsetX, OffsetY,
+		OffsetX, OffsetY + menuHeight,
 		width - OffsetX * 2, height - OffsetY * 2
 	};
 }

SpaceCadetPinball/options.cpp

@@ -204,6 +204,7 @@ void options::toggle(Menu1 uIDCheckItem)
 		return;
 	case Menu1::Show_Menu:
 		Options.ShowMenu = Options.ShowMenu == 0;
+		fullscrn::window_size_changed();
 		return;
 	case Menu1::Full_Screen:
 		Options.FullScreen ^= true;

SpaceCadetPinball/winmain.cpp

@@ -37,6 +37,7 @@ bool winmain::LaunchBallEnabled = true;
 bool winmain::HighScoresEnabled = true;
 bool winmain::DemoActive = false;
 char* winmain::BasePath;
+int winmain::MainMenuHeight = 0; 
 std::string winmain::FpsDetails;
 double winmain::UpdateToFrameRatio;
 winmain::DurationMs winmain::TargetFrameTime;
@@ -341,6 +342,13 @@ void winmain::RenderUi()
 
 	if (ImGui::BeginMainMenuBar())
 	{
+		if (MainMenuHeight == 0)
+		{
+			// Get the height of the main menu bar and update screen coordinates
+			MainMenuHeight = static_cast<int>(ImGui::GetWindowSize().y);
+			fullscrn::window_size_changed();
+		}
+
 		if (ImGui::BeginMenu("Game"))
 		{
 			if (ImGui::MenuItem("New Game", "F2"))

SpaceCadetPinball/winmain.h

@@ -49,6 +49,7 @@ public:
 	static bool HighScoresEnabled;
 	static bool DemoActive;
 	static char* BasePath;
+	static int MainMenuHeight;
 
 	static int WinMain(LPCSTR lpCmdLine);
 	static int event_handler(const SDL_Event* event);