Linking errors

[tre4]

Hi There, I've spent a number of years away from C and C++ but recently decided to get back to it. I downloaded the latest VS2013 C++ and off I went. My challenge is that I cannot get the DLL I need to use to link in. I've generated a .def file using Dumpbin and then used that to create a .LIB for the DLL. I've put the lib in the Additional Dependencies of the Linker properties and added the directory to VC++ directories. It is definitely reading the lib because if I name it wrong then I get a can't find the lib error. I am still getting a LNK2019 unresolved externals message. I tried dumping the lib using dumpbin /EXPORTS and it has all the functions (though they are preceeded by _) I did even try using the _Functionname.. names in the code but still no luck. It feels like in the 10-15 years in between C++ should have got a lot easier. I sort of expected to just drop the dll in the project and off it would go. Hey ho, anyone that can point me at what I'm doing wrong I would be grateful Trevor

[Richard Andrew x64]

I assume you're using a header file to describe the functions that live in the DLL? If so, try putting this around the function declarations:

extern "C"
{
// Function declarations go here
}

The difficult we do right away... ...the impossible takes slightly longer.

[tre4]

Hi Richard, Thank you very much, I knew it would be something simple I just could not see it! All linking okay now :-) Trevor