[amibroker] BarsSince Question

[steve_almond]

I was trying to calculate the number of bars since the highest close of the 
last 126 trading days.

This seems to work:

A1=(HHVBars(C,126));

But this doesn't (it always returns 0):

A1=BarsSince(HHV(C,126));

Why does that not work?

Steve