class HelloMultitouchApp : public AppNative {
public:
    Font font;
    gl::TextureFontRef texture_font;
    int screen_width;
    int screen_height;
    bool use_pixels;

    std::pair<int, int> normScreenToWindowPx(float screen_x, float screen_y);
    void prepareSettings(Settings *settings);
    void setup();
    void mouseDown(MouseEvent event);
    void update();
    void draw();
};