Reading TDM files in VS2013, C++

I am trying to use the TDM C DLL files created by NI to read and write TDM/TDX files in a C++ program in VS.

When I try and build the code calling functions in nilibddc.h, I get LNK2019 errors, saying there is an unresolved external symbol. I am not sure of the proper method to set up a link between my cpp and the lib file I am trying to call. Any advice would be appreciated.

Also trying to determine if there is a way to get TDM/TDX data editing on Cygwin instead of VS.

Thanks!