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 Products > Books > COM > Developing COM/ActiveX Components with VB6 > Updates |
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Visual Basic Programmer's Guide to the Win32 API Introduction Contents Updates Edition History Exploring VB6 (series) Developing COM/ActiveX Components with VB6: A Guide to the Perplexed Introduction Outline What's New from the VB 5.0 edition Updates Win32 API Puzzle Book and Tutorial Introduction Chapter Outline Sample Puzzle Updates NT Security Programming with Visual Basic 6 Updates Visual Basic Programmer's Guide to the Windows 16 bit API
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Developing COM/ActiveX Components with VB6: A Guide to the Perplexed
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The following corrections apply to the previous edition of the book: Developing ActiveX Components with Visual Basic 6.0: A Guide to the Perplexed ISBN 1-56276-576-0
Chapter 10 - Clarification
If you want a user defined type to be visible outside of your component (say through a variant or property), it must be public and defined in a public class. That's the only way to get the user defined type to appear in the component's type library, which allows it to be marshalled properly.
Desaware's ActiveX Gallimaufry contains numerous ActiveX controls and components written in VB6 - with source, so you can learn techniques to apply to your own components.
