devxlogo

Declaring DLL Functions

Declaring DLL Functions

Question:
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?

Answer:
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.

See also  Professionalism Starts in Your Inbox: Keys to Presenting Your Best Self in Email
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist