April 2002
Intermediate to advanced
440 pages
12h 37m
English
Content preview from Programming Visual Basic for the Palm OSBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 9. Piedmont
In this chapter, we look at the AppForge
Piedmont
Framework
(henceforth referred to as Piedmont), a component SDK for Windows and
handheld devices.
Piedmont uses a component-based architecture to bring portable
component-oriented programming to the PDA.[60] As powerful as COM is for Windows platforms, it is
useless on the PDA, since so much of COM relies on support from the
Windows operating system. AppForge bridges this gap on the Palm
through BoosterPlus, which provides the
registration and runtime support services associated with COM.
Piedmont is portable in a number of ways, which is useful in development, integration, and deployment. Piedmont object development is started with Microsoft’s Visual C++ environment. From there, the developer can continue to develop in Visual C++, debugging and testing his/her component from within Windows. At some point, the component is integrated into a Visual Basic AppForge project, or deployed on the handheld for Piedmont clients to use. Deploying the component involves compiling it with MetroWerks CodeWarrior, installing it on the Palm, and registering it with the Booster.
This chapter provides an overview of the Piedmont internals by creating a sample server component. We then show how to integrate the component with an AppForge Visual Basic project.
Piedmont’s extensive framework makes it difficult to cover all aspects of Piedmont in one chapter. In this chapter, we focus on the internals, since developers will want ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.