[Bug 52131] wine-mono + RMS Express: HF Channel Selection Browser crashes

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52131

--- Comment #22 from Eric <eric.wheez at gmail.com> ---
Looking at PropagationPrediction.PredictionClass.CreateDVOACapQuery in ILspy,
it looks like the input frequency is first stored as a double, then
PropagationPrediction.PredictionClass.GridSquareToDecimalDegrees is run (but
has no frequency inputs at all), then some math and double-to-string &
string-to-double conversions are run on the input frequency.

I'm not actually sure if the Structured exception handling (SEH) error is with
the way that the math/conversions are being handled in .NET, or if the SEH
error is coming from the dvoa.dll Delphi library's erroring/exception.

I suppose another thing to check would be to see where dvoa.dll came from and
whether that's open-source or not.

---
>From Microsoft, "Structured exception handling (SEH) is a Microsoft extension
to C to handle certain exceptional code situations, such as hardware faults,
gracefully." 
https://docs.microsoft.com/en-us/cpp/cpp/structured-exception-handling-c-cpp?view=msvc-170

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