Click Here for the Outline in PDF Version Course Outline: Programming COM and ActiveX Using Visual Basic (3 Days) with Hands-On Labs Learning Objectives Learn how to do object oriented programming using Visual Basic Gain a thorough understanding of the principles of the Component Object Model Learn how to do COM and ActiveX Programming Using Visual Basic This course description should be used to determine whether the course is appropriate for you based on your current skill and technical training needs. Technical information is provided on the intended audience, course prerequisites, and covered topics. Course content, prices, and availability are subject to change without notice. Course Audience This course provides a thorough introduction to COM and ActiveX programming using Visual Basic. Because of its ease of use and very strong tool support, Visual Basic is the language of choice for many applications in the Microsoft Windows environment. Visual Basic also has extensive support for COM, OLE and ActiveX. Course Description This course covers the concepts of COM, the implementation of both COM servers and clients, and ActiveX controls. The course emphasizes the conceptual underpinnings of COM programming using Visual Basic, laying a firm foundation for the effective use of this technology in application development. The course runs on Visual Basic 5.0 or 6.0. The course begins with an exploration of object-oriented concepts, based on a running system supporting customers and merchants. Objects are introduced as an effective design tool for modeling such a system. There is then a discussion of the use of Visual Basic in object-oriented programming. Visual Basic supports abstraction, encapsulation, interface inheritance, and polymorphism. It also supports code reuse through containment and delegation. Then COM is introduced as the mechanism to extend object oriented programming across component boundaries. Components can be implemented in-process (as a DLL) or in a separate process (as an EXE). The basic structure of COM is explained, including vtable and dispatch interfaces, the use of the Registry, type libraries, events, collections and error processing. ActiveX controls are covered. Prerequisites The student should have a fundamental knowledge of Visual Basic, and some experience with the Visual Basic 5.0/6.0 IDE would be helpful. The course is suitable for a VB programmer who wishes to learn the object-oriented features of the language. The course will also work for a programmer familiar with an object-oriented language like C++ but who has only a little previous exposure to Visual Basic. TOPICS COVERED IN LECTURE & LAB Object-Oriented Programming Using Visual Basic Introduction to Objects What is an Object? Abstraction Encapsulation Classes and Instances Interfaces Relationships Inheritance and Code Reuse Polymorphism Using Objects in Visual Basic Properties Methods Events Built-in Objects Adding Properties and Methods Using External Objects Object Browser Hierarchical Object Models Implementing Objects in Visual Basic Modules Private and Public Encapsulation Class Modules Instantiation Object Creation and Destruction Methods Properties Let and Set Events Event Interfaces Specifying an Event Raising an Event Handling an Event Encapsulating the VB Timer Interfaces and Containment Interfaces Implements Keyword Multiple Interfaces Using Multiple Interfaces IS-A and HAS-A Relationships Containment/Delegation Visual Basic Class Builder Polymorphism Polymorphism Abstract Classes Implementing Polymorphism Using Polymorphism Variants and Collections Variants Type Conversion Type Information Collections Indexes and Keys For Each Loops Collections of Objects COM Programming Using Visual Basic Introduction to Components Components and Objects Local/Remote Transparency Component Technologies Components in Visual Basic ActiveX DLLs and EXEs Private and Public Class Modules Component Object Model COM and Visual Basic Object Models Interfaces Globally Unique Identifiers IUnknown Interface Negotiation Reference Counting Object Creation and Destruction Multiple Interfaces in Visual Basic Instancing Property Type Libraries Type Information Use of Type Libraries by Visual Basic OLE/COM Object Viewer and Object Browser Interface Definition Language Default Interface Creating Type Libraries COM and the Registry Windows Registry Registry Editor Registry Entries for COM Components Self-Registration Version Compatibility Error Handling COM Interfaces for Error Handling Visual Basic Exception Processing Err Object Handling Errors Raising Errors Automation and Late Binding Automation and Dispatch Interfaces CreateObject Early, Late and Dispid Binding Using Objects with VBScript Events ActiveX Controls Methods, Properties and Events Stock Properties and Ambient Properties Property Persistence Using ActiveX Controls Creating Controls Using Visual Basic

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