>Robert,
>
>One would think that a failure from a UDF would trigger an Error Routine based on a defined error number... therefore I would return a logical >after< the Error is triggered... seems to me a UDF which returns a 'value' by default would return, for instance, a '0' if the process failed for some logical reason (like trying to deduct an order item from an inventory when there is nothing in the inventory)... etc...
>
>M2cents....
>
>Ric

Many low-level functions use 0 as successful & non-zero as failure, with different non-zero values for each error.

This view inverts the way you look at the return value, rather than returning success/failure as .T./.F., what is being returned is an error code, where 0 means "no error".