September 2001
Intermediate to advanced
400 pages
11h 23m
English
Content preview from Palm OS Network ProgrammingBecome 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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Sample Application
The sample application (FtpView) demonstrates
each
of the steps in connecting to and disconnecting from the network. It
also highlights the resources consumed as the process goes through
each step. As an end user application, it lacks a certain appeal; one
might even say it’s useless. But it clearly illustrates the
issues involved in initializing, opening, and closing the Net
Library. It is the first step on the road to becoming a Palm
networking guru.
The main things you must do in every Palm OS network application you write are:
Make sure the Net Library is installed and that your application is compatible with it by retrieving its version number.
Obtain a reference to the Net Library from the operating system by calling
SysLibFind.Open the Net Library by calling
NetLibOpen. Be sure to check for errors both in the return value and in the interface error parameter. If the library is already open or an interface error is returned, check the state of the interface you are interested in to make sure it is loaded.
When you are finished with the network, call
NetLibClose. Unless you have a really compelling
reason for closing your connection immediately, you should specify a
delayed closing.
Of course, there’s still a fair amount of work to do between steps three and four: connecting to the network, establishing connections with remote hosts, and exchanging data. We cover these topics in depth in Chapter 7 through Chapter 12.
Application Startup
When the application ...
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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.