Functions in Test.dll

Good morning. I should have posted this in the Script & Programming section, but it ended here by mistake. I'm sorry.

Edit: I've got my DLL based on Test.dll working. But I am having troubles on getting string variables, such as IBIS_busstop_name and IBIS_terminus_name. In the procedure AccessVariable, the parameter value is defined as single. But even changing it to string I get an empty result. I don't have problems with numerical variables.

Thanks!