Eugene,
what platform is this, .NET or Island/Windows? And how do you want to access the exported functions – from a different Elements project, or with a different compiler?
On Island/Windows, you will want to use the @DllExport aspect to mark globals as exported for see from non-Elements compilers, such as C/C++ or Delphi; From Elements, you should be able to access public globals as they are the referencing the .fx file for the .dll.