Mixed language programming...

[5applerush]

Hi everyone,
I'm wondering if anyone knows of any good information resources on mixed language programming? I'm learning Visual Basic 2005 and collaborating with a friend to write a GUI for an app he's writing in Fortran/C++. Information on data passing between these languages seems sparse, and we get hung up often. Books? Websites?

Any advice is greatly appreciated.
Thanks in advance,
Danny

[messycan]

well im not 100% sure, but I used to write VB applications and do some code in C/C++. I created a DLL and imported the functions. Look into creating DLL's with VB.NET, then you can import them into you C++ application. Seems easier just to write the code in C++ and do the GUI with VB.