Quote from koms:
I use both IB and MB Trading API.
They have sample programs ( I use VB 6.0 samples and modify them based on my requirments ) .
I am looking for ways for real time charting the values I have recalculated based on API.
Any help.

Quote from j_medved:
QuoteTracker API lets you trade through a bunch of different brokers without having to write to each one's API. Docs at:
http://www.quotetracker.com/help/qtstreamingapi.shtml
http://www.quotetracker.com/help/qttradingapi.shtml