Method ShowHorizontalScrollbar

src/ProjectWindow.cpp:488–492

           position, thumbSize, range, pageSize, refresh);
   }
   void ShowHorizontalScrollbar(bool shown) override
   {
      if (IsWindowValid(mwWindow))
         mwWindow->ShowHorizontalScrollbar(shown);
   }

   int GetVerticalThumbPosition() const override
   { return IsWindowValid(mwWindow) ? mwWindow->GetVerticalThumbPosition() : 0; }