Descending index ?

I know how to add an index to my table:
Table1.AddIndex(MyIdx,aField,[],aField);
The 4th parameter tells the field in descending order.

I also know how to find indexes associated to a specific field:
for i := 0 to Table1.IndexDefs.Count - 1 do
if Tabl1e.IndexDefs.Items[i].Fields = Campo then
......

I can't find a way to know if the found index is ascending or descending.
This is my problem. Do you know how to do this ?
(I am obviously using the BDE..)


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