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 4. Conduit Development
The original concept of the Palm was of a device tethered to data on the desktop. The PDA is an extension of the desktop, not its replacement. 3Com (the Palm PDA manufacturer) has expanded this design concept; it now calls the Palm device the “connected organizer.” Palm wants you to build applications that function in today’s mobile and connected world.
In this chapter, we look at
building
conduits using Microsoft Visual Basic (VB).
Conceptually, a conduit is the tether that moves data back and forth,
connecting your Palm application and its data store. A conduit is a
piece of software that runs on the desktop when the PDA is
synchronizing,
under the
control of the Palm HotSync manager.[27] In this book, we are going to build conduits
using VB and ActiveX.
By design, a conduit is dedicated to a single Palm application, which will have one or more associated Palm databases. Keep in mind that, even though the conduit is a piece of desktop software, the application data may be located anywhere—on the desktop, in a relational database, or even on the Internet. Once you have decided where your application’s data resides, it is then your responsibility to build a conduit capable of delivering that data to the Palm device. The Palm Conduit Development Kit provides a framework for ActiveX conduit development, which we’ll explain in detail later in this chapter.
Note that conduits developed in VB can be used with any application and database on the PDA, not ...
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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.