How can I export c++'s classes in a visual basic project using dlls

[jdr23]

Hallo, my name is Lorentz; this is my question:

How can I export a c++ class in a Visual Basic project using a visual c++ dll? What kind of dll have I to create?
Can I use a wizard? Can you make me an example of a simple dll that allows me to export a c++ class in a visual basic project? I'm sorry for my English, thanks for your help

 

[Cagliostro]

create a dynamic link library type project.
The classes, variables and functions you should declare with
__declspec(dllexport) John Fill

ivfmd@mail.md

 

[kgarrett]

I would like to see an example. I am trying to do something that is computationally intense in C++ and import and export the data from Excel. I need help on how to build the project and retrieve the data. Any guidance would help. Thanks.

kgarrett

 

[Cagliostro]

I don't know how to import functions in VB, but in VisualC++ declare them as

__declspec(dllexport) __stdcall typeReturn functionName(argumentType1 arg1,...)
{
implementation here
} Ion Filipski

filipski@excite.com