Declaring DLL Functions

Declaring DLL Functions

A colleague wants to create a DLL using Borland C++ to callfrom Visual Basic 3.0 but she keeps getting an error message”Sub or Function Not Defined”.Do you know of any “in-depth” references to consult on creationof DLL’s?

The DLL has probably been created ok…you just need to declare the function at the top of the form you’re using it in, or in a .BAS module. Take a look at the Programmers’ Guide…it has information about using DLL functions.The other possibility is that your friend did not make the Sub or Function in the DLL public.

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