Exchanging messages between VB and C++ using MFC

[Fukinagashi]

I've written a VB6 application. This application launches a C++ processor (DLL) who last several minutes.
How can I show messages coming from the C++ app and show them in real-time in the VB text box?

[vb5prgrmr]

Via the use of a callback function.... How do you exactly do this from within C++ I don't know, but I know it can be done...



Good Luck

[Fukinagashi]

Thanks.
Anyone could suggest where to find example code?
I would like to have a VB text box automatically up-to-date respect to my C++ application...