\twocolitem{{\bf EVT\_LIST\_KEY\_DOWN(id, func)}}{A key has been pressed.}
\twocolitem{{\bf EVT\_LIST\_INSERT\_ITEM(id, func)}}{An item has been inserted.}
\twocolitem{{\bf EVT\_LIST\_COL\_CLICK(id, func)}}{A column ({\bf m\_col}) has been left-clicked.}
-\twocolitem{{\bf EVT\_LIST\_COL\_RIGHT\_CLICK(id, func)}}{A column ({\bf m\_col}) has been right-clicked.}
+\twocolitem{{\bf EVT\_LIST\_COL\_RIGHT\_CLICK(id, func)}}{A column ({\bf m\_col}) (which can be $-1$ if the click occured outside any column) has been right-clicked.}
\twocolitem{{\bf EVT\_LIST\_COL\_BEGIN\_DRAG(id, func)}}{The user started resizing a column - can be vetoed.}
\twocolitem{{\bf EVT\_LIST\_COL\_DRAGGING(id, func)}}{The divider between columns is being dragged.}
\twocolitem{{\bf EVT\_LIST\_COL\_END\_DRAG(id, func)}}{A column has been resized by the user.}