docs: public boolean mouseDrag(Event e, int x, int y) {
  
          if (bDrag && x < iWidth) {
              int w = x - iXDrag;
  
              if (w < 0) {
                  w = 0;
              }
  
              iColWidth[iColDrag] = w;
  
              adjustScroll();
              repaint();
          }
  
          return true;
      }