Function verticalNudgeUp

src/OpenLoco/src/Ui/ScrollView.cpp:385–390

    }

    void verticalNudgeUp(Ui::Window& window, const size_t scrollAreaIndex, const WidgetIndex_t widgetIndex)
    {
        window.scrollAreas[scrollAreaIndex].contentOffsetY = std::max(window.scrollAreas[scrollAreaIndex].contentOffsetY - kButtonClickStep, 0);
        ScrollView::updateThumbs(window, widgetIndex);
        WindowManager::invalidateWidget(window.type, window.number, widgetIndex);
    }

    // 0x004C8B26
    static void vButtonTop(Ui::Window& window, const size_t scrollAreaIndex, const WidgetIndex_t widgetIndex)