Hi; I've checked all sample codes in Developer's Kit and "DjTrader's Un- Official Developer's Document" but i've found nothing about the Query class in the COM library. Looking at the members of this class, i guess that this class lets developers to query QP3 databases. But since i've no idea about the internal structure about the databases (table names, column names etc.) i couldn't make it work so far.
And a second question, how can i list the components of a certain index (let's say SP500) with QP3 COM library? Symbols class list symbols only according to exchange memberships or types (futures, stocks etc.)?
