>>>That behavior is already built in, so you must have some code which has stopped it from working.
>>
>>Yes, in pretty any other set of controls, but not in VFP's combo. It doesn't react to the mouse wheel when the mouse is over the dropdown. It does when it's over the textbox part. It's a behavior which annoys me since VFP5 and I've sort of given up hope that it will ever be fixed.
>
>Actually it does in the very few cases I use combos, and I don't recall having done anything special to get it working. On the other hand, I don't allow any editing in the combo. I always use Style = 2, Dropdown List.

Thanks to your suggestion:
It doesn't react to the mouse wheel when the mouse is over the dropdown. It does when it's over the textbox part

I discovered that it does in fact work when the mouse pointer is over the dropdown. It would have taken me years to accidentally discover this. I also use Style=2 Dropdown List. My problem was that it wouldn't scroll if I was over the items in the dropdown list. I wonder if there is a way to code this such that it applies this behavior when you are over the items in the dropdown list? Anyway, thanks so much for your input.

Dick