I want to test an EA that makes use of external signals in the Strategy Tester and the thread states that the native filehandling does not work in the strategy tester. So I have tried to use the dll supplied in this thread. The input I want to process is in a file looking like this:

2007-01-02;EURUSD;2.InstPipDown;;Yes
2007-01-02;USDJPY;1.InstPipUp;;Yes
2007-01-02;USDCHF;1.InstPipUp;;Yes
2007-01-03;EURUSD;2.InstPipDown;;Yes
2007-01-03;EURUSD;4.PipMax1Down;;Yes
2007-01-03;GBPUSD;4.PipMax1Down;;Yes
2007-01-04;USDJPY;8.PipRevBear;;Yes
2007-01-05;EURUSD;5.PipMax2Up;;Yes
2007-01-05;USDJPY;1.InstPipUp;;Yes

I do create the file myself so I can use other types of delimiters.

How do I use the dll to get one "record" at the time? I can do the parsing for the individual fields.
How do I know when I have reached EOF?

I have tried a few variations but I get inconsistent results and sometimes garbage. Writing data as in the example works fine but I want to read data.