Don't see this documented. Can one depend upon MouseDownRow < 0 to determine if an empty part of a listbox has been clicked - ie when no records or a less than full list of records exists?
Its a bit hard to find but in the Help as: FORMAT() List Box Mouse Click Properties
The three “Row” properties all return zero (0) for header text and negative one (-1) if below the last displayed item.
Because I find the LIST Help hard to find my List Format Parser has a Help tab and CW Help button to open the important topics.
Okay, seems like one can depend upon the mouse row properties. The mouse field properties seem to return zero when clicked below.