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Mastering Interface Inheritance in Visual Basic 6.0 VB6 OOP Guide Polymorphism 1. Introduction 2. The Implements Keyword 3. Step 1: The Interface 4. Step 2: Concrete Class 5. Step 3: Polymorphism 6. Composition Pattern Interface Inheritance in Visual Basic 6.0 A comprehensive guide to implementing polymorphism, structural contracts, and reuse patterns in classic COM-based object environments. 1. Introduction to VB6 OOP Limitations If you come from languages like C++, Java, or C#, you are likely accustomed to Implementation Inheritance (using terms like extends , inherits , or base classes). T...