Method clicked

src/fl/ui/button.h:54–62

        return false;
    }
    bool clicked() const FL_NOEXCEPT {
        if (mImpl.clicked()) {
            return true;
        }
        if (mButtonInput) {
            return mButtonInput->clicked();
        }
        return false;
    }
    int clickedCount() const FL_NOEXCEPT;
    operator bool() const FL_NOEXCEPT { return clicked(); }
    bool value() const FL_NOEXCEPT { return clicked(); }