Advanced Automation Techniques
In this section, our goal is to get you up to speed on some of the more advanced features of Automation that the wizards never told you about. Topics such as Automation events, collections, type library gotchas, and low-level language support for COM are all covered. Rather than devote more time to talking about this stuff, let's jump right in and do it!
Automation Events
We Delphi programmers have long taken events for granted. You drop a button, you double-click OnClick in the Object Inspector, and you write some code. It's no big deal. Even from the control writer's point of view, events are a snap. You create a new method type, add a field and published property to your control, and you're good to go. For Delphi ...
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