Hi Nigel

Thanks to reply.

you wrote:
For GLEW to work properly in smalltalk there might
need to be some kind of adaptor.

Yes is right .
Please.  Can you tell me how to modify DLL?

I need to modify DLL, so that it exports functions estardar C.
Equal to  GLewInit .
I'm not expert in C++ and I not understand  how modify la DLL.

Advanced thanks