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

[WineHQ Bugzilla]

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

--- Comment #16 from Eric <eric.wheez at gmail.com> ---
Created attachment 71214
  --> https://bugs.winehq.org/attachment.cgi?id=71214
Analysis of crashing vs working gridsquares given to
PropagationPrediction.dll/dvoa.dll

It looks like the crashing gridsquares all have a returning value of `"Freqs":
[ 0.01]` but the working gridsquares have a returning value of "Freqs" with
other values. Here's an example with oversimplified text:

--Working--
ENTER:c ([STRING:030c77c0:IM59NE], 3610.100000, [:031aee58])
LEAVE:c ([STRING:03000760:{"Arguments": {"RxLocations": [{"Lat": 39.19, "Lon": 
-8.88, "Freqs": [ 3.61]
--------

--Crashing--
ENTER:c ([STRING:03249260:AE01UB], 7.093000, [:03249058])
LEAVE:c ([STRING:0324ba20:{"Arguments": {"RxLocations": [{"Lat": -48.94, "Lon":
-178.29, "Freqs": [ 0.01]
--------

RMS Channels.dat
CT1CPS|IM59NE|3610100|13|00-23|PUBLIC  <-- working
CT1CPS|IM59NE|3610100|50|00-23|PUBLIC  <-- working
DA5UDI|JO30QJ|7051400|43|00-23|PUBLIC  <-- working
9W2RUT|AE01UB|7093|41|00-23|PUBLIC     <-- crashes
9W2RUT|OJ02UX|7093|41|00-23|PUBLIC     <-- crashes
|       |      |
|       |      |__HF frequency to calculate propagation qualty for
|       |      
|       |__Gridsquare (geographical location)
|        
|__Callsign (person)


I'm attaching more examples of this kind of analysis with oversimplified
strings for easier comparison (I just found/replaced a lot of the parts that
were the same between all the strings so things would be easier to read)

So, now I'm thinking that it may not be the Lat/Long input, but the frequency
input that is the issue.  I think the
PropagationPrediction.PredictionClass:CreateDVOACapQuery method may be garbling
just some of the input frequency strings that are supposed be sent to dvoa.dll
(I believe dvoa.dll is run during the LoadDll method) and then dvoa.dll is
reporting an error with 0x0eedfade.  I'm not sure why only some smaller-value
frequencies would cause issues, but I'll keep digging.

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