gzdoom-gles/wadsrc/static/zscript/menu/menu.txt

struct KeyBindings native
{
	native static String NameKeys(int k1, int k2);

	native int, int GetKeysForCommand(String cmd);
	native void SetBind(int key, String cmd);
	native void UnbindACommand (String str);
}

struct OptionValues native
{
	native static int GetCount(Name group);
	native static String GetText(Name group, int index);
	native static double GetValue(Name group, int index);
	native static String GetTextValue(Name group, int index);
}

struct JoystickConfig native
{
	enum EJoyAxis
	{
		JOYAXIS_None = -1,
		JOYAXIS_Yaw,
		JOYAXIS_Pitch,
		JOYAXIS_Forward,
		JOYAXIS_Side,
		JOYAXIS_Up,
	//	JOYAXIS_Roll,		// Ha ha. No roll for you.
		NUM_JOYAXIS,
	};

	native float GetSensitivity();
	native void SetSensitivity(float scale);

	native float GetAxisScale(int axis);
	native void SetAxisScale(int axis, float scale);

	native float GetAxisDeadZone(int axis);
	native void SetAxisDeadZone(int axis, float zone);
	
	native int GetAxisMap(int axis);
	native void SetAxisMap(int axis, int gameaxis);
	
	native String GetName();
	native int GetNumAxes();
	native String GetAxisName(int axis);
	
}

class Menu : Object native
{
	enum EMenuKey
	{
		MKEY_Up,
		MKEY_Down,
		MKEY_Left,
		MKEY_Right,
		MKEY_PageUp,
		MKEY_PageDown,
		MKEY_Enter,
		MKEY_Back,
		MKEY_Clear,
		NUM_MKEYS,

		// These are not buttons but events sent from other menus 

		MKEY_Input,
		MKEY_Abort,
		MKEY_MBYes,
		MKEY_MBNo,
	}

	enum EMenuMouse
	{
		MOUSE_Click,
		MOUSE_Move,
		MOUSE_Release
	};

	enum EMenuState
	{
		Off,			// Menu is closed
		On,				// Menu is opened
		WaitKey,		// Menu is opened and waiting for a key in the controls menu
		OnNoPause,		// Menu is opened but does not pause the game
	};

	native Menu mParentMenu;
	native bool mMouseCapture;
	native bool mBackbuttonSelected;

	void Init(Menu parent)
	{
		mParentMenu = parent;
	}
	
	native static int MenuTime();
	native static void SetVideoMode();
	native static Menu GetCurrentMenu();
	native static void SetMenu(Name mnu, int param = 0);
	native static void StartMessage(String msg, int mode = 0, Name command = 'none');
	
	virtual bool TranslateKeyboardEvents() { return true; }
	virtual void SetFocus(MenuItemBase fc) {}
	virtual bool CheckFocus(MenuItemBase fc) { return false;  }
	virtual void ReleaseFocus() {}
	virtual void ResetColor() {}

	native virtual bool Responder(InputEventData ev);
	native virtual bool MenuEvent (int mkey, bool fromcontroller);
	native virtual bool MouseEvent(int type, int mx, int my);
	native virtual void Ticker();
	native virtual void Drawer();
	native void Close();
	native void ActivateMenu();
	
	static void MenuSound(Sound snd)
	{
		S_Sound (snd, CHAN_VOICE | CHAN_UI, snd_menuvolume, ATTN_NONE);
	}
	
	static void DrawConText (int color, int x, int y, String str)
	{
		screen.DrawText (ConFont, color, x, y, str, DTA_CellX, 8 * CleanXfac_1, DTA_CellY, 8 * CleanYfac_1);
	}

}

class MenuDescriptor : Object native
{
	native Name mMenuName;
	native String mNetgameMessage;
	native Class<Menu> mClass;

	native static MenuDescriptor GetDescriptor(Name n);
}