First, thank you for your response.
Your function responds to the STATE of the AutoFilter:
1. if the user selects one of the autofilter options, the function returns
True
2. if the user selects (All), the function return False
I need something a litle different. I need the function to return True once
the user has switched on Auto filtering for the cell in question thru
something like:
Data > Filter > Autofilter
You see, I don't care which option the user may choose from the filter
pull-down, only that filtering has been enabled and the pull-down can be used.
In any case, the code you posted is valuable and I will use it in the future.
Thanks for the help.