Method nextOption

src/fl/ui/dropdown.h:150–154

    void addNextButton(int pin) FL_NOEXCEPT;

    void nextOption() FL_NOEXCEPT {
        int currentIndex = as_int();
        int nextIndex = (currentIndex + 1) % static_cast<int>(getOptionCount());
        setSelectedIndex(nextIndex);
    }

    void setGroup(const fl::string& groupName) FL_NOEXCEPT override {
        UIElement::setGroup(groupName);