DLL question

[idinkin]

Hey everybody!
If I will create a dll in Visual C++ can I use the classes of Visual C++ in Visual Basic? If the answer is positive tell me please how can I do this...
Thanx!

 

[idinkin]

Will the classes exported by AFX_EXT_CLASS work in Visual Basic?

 

[LazyMe]

No they won't. Extension dll's don't even work in plain C++; your executable must be MFC supported for them to work.

If you want to export classes to VB, you'll have to go into COM.
Greetings,
Rick

 

[idinkin]

Can you please tell me how can I do this with COM?

 

[LazyMe]

That's a bit difficult to explain just here. You'll have to create a COM dll. I always use ATL for this. The ATL COM appwizard builds a framework for you (the COM dll, which houses the COM objects you're going to expose) and then you have to insert ATL COM objects yourself. I recommend you first do some reading about this though, because it's a quite different approach than "conventional" C++ programming.
Greetings,
Rick

 

[idinkin]

Thanx!