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Hi, I am working in a DLL to create a Labview component that runs some C code. I was using the Call Library Function, and I see it works to write external functions that get and set Labview data in/from the C code. But now, I would like to make it work with Variants, since I want to allow to wire any kind of data into my CLF Node. I have been using the Adapt to Type - Interface to Data option to be able to introspect the LabVIEW Data from my C code and get or set its value. I have been told that Variants are structured very similar to any other LabVIEW Type, so I should be able to use the Interface to Data option as well (with some minor changes in the code and maybe some casts). But the truth is that I cannot even try it since when I connect a Variant to the CLF Node, LabVIEW tells me: I guess this means that it is not going to be as easy as expected, probably having to do some tricks, workarounds, etc. but right now I do not have any idea on what to try or where to start with. I have been trying to look in the documentation, help and posts anything useful but I did not find anything. So, any help will be greatly appreciated. Thank you very much.