Listener for receiving real time data through DataFeed Toolbox

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swen swin 2019-9-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/482807-listener-for-receiving-real-time-data-through-datafeed-toolbox

回答： Yair Altman 2020-1-12

I'm trying to receive data from IQFeed using the Datafeed toolbox.

I would like to listen to real time data, and the API seems to provide for that, since I can specify an EventListener and an EventHandler. However, I have not been able to set this up correct, I can get the EventListener registered and activated once, but the handler is never called.

Can anyonme point to an example that works for receiving real time data and get code executed whenever new data arrives.

Thanks!

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Answer 1

Yair Altman 2020-1-12

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https://ww2.mathworks.cn/matlabcentral/answers/482807-listener-for-receiving-real-time-data-through-datafeed-toolbox#answer_409774

Consider using my IQML (IQFeed-Matlab) connector as an alternative. IQML enables both synchronous (blocking) and asynchronous (background) queries, that are fetched either serially or in parallel (using the Matlab Parallel Computing Toolbox). A simple usage example:

data = IQML('history', 'symbol','XIV,AAPL,MSFT,GOOG', 'UseParallel',true);

IQML was developed with top performance, reliability and usability in mind, and supports 100% of IQFeed's API functionality. It is fully documented, continuously maintained/improved, and I am happy to provide support.

Details: https://undocumentedmatlab.com/IQML or https://www.mathworks.com/matlabcentral/fileexchange/69814-IQML

Note: I am an independent software developer and not a MathWorks employee. Don't get angry at me for bringing an independent alternative to the table...