We help IT Professionals succeed at work.
Get Started

Implement multiple COM interfaces

Last Modified: 2013-12-14

I was wondering if it is possible, and if so, how, to implement multiple COM interfaces which contain methods with the same signatures. I am using VC++, but when I try to add a method to a class' main interface via the wizard that has the same signature as a method in an interface implemented by that class, I get an error saying that the method already exists. The COM interfaces implemented by a COM class are supposed to be independent, so there must be a way to handle this. (Note that I want different implementations of the methods depending on which interface it is being called on).

Watch Question
This problem has been solved!
Unlock 1 Answer and 12 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE