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NAQ Professional Data Feed API (Level I and Level II)

UpdateBidAsk

The UpdateBidAsk event (requested by the Watch method) fires throughout the trading session. 

 

Ignore this message if you are using the supplied grid Level I interface, as the grid control automatically recognizes this message.

 

UpdateBidAsk (BSTR Symbol, double Bid, long BidSize, double Ask, long AskSize)

 

Remarks

This event is for Level I data only.

 

See Also 

    Watch