Accessing enum value in DLLs header file

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Olaf
Olaf on 16 Dec 2013
Commented: dpb on 16 Dec 2013
Hello,
I am using a DLL for device communication. Loading the DLL works. There are some enumerations defined in the DLLs header file. How can i access those? Just writing the enum value as string leads to an error that "Parameter must be scalar".
Thanks alot

Answers (1)

dpb
dpb on 16 Dec 2013
You can't get at them unless the symbols are exposed by the DLL which in general they wouldn't be except as internal. AFAIK the only way you'll see these would be to use LOADLIBRARYEX with DONT_RESOLVE_DLL_REFERENCES and then read the data area containing the enumerations. It's probably both easier and safer to simply recreate them for your application.
  2 Comments
Olaf
Olaf on 16 Dec 2013
I managed to find a way to access the enums.
loadlibrary('somelib.dll', 'somelib.h', 'mfilename', 'somelibM'); [methodinfo, structs, enuminfo, ThunkLibName] = somelibM;
then i can access the enum like
enuminfo.EMYEnum.eENUMVALUE
I am not sure, if thats the best way, but i works.
dpb
dpb on 16 Dec 2013
That's better than I had thought probably possible...good to know (I guess :) )

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