Thanks for your comments.  I'm not quite to the point where I will be
developing enterprise level applications.  My plan is to work on a
project with a friend that will run on his Palm.  I believe he has an
older device that uses 3.x.  I doubt I will need to support versions
earlier than that.  Recently, I have been programming primarily in
Java.  When a new version of Java is released, they sometimes change
the .class format and add switches to the compiler in order to compile
to earlier formats.  I just wanted to know if there were any similar
issues with the PRC file format.

Again, thanks for your input.  I'll be home coding as soon as I get off work!

Layne

On 6/23/05, Robert Moynihan <[EMAIL PROTECTED]> wrote:
> Layne Lund wrote:
> 
> >Oh, is there anything special I need to do when I compile my programs
> >to ensure that my programs will run on older devices?  I use
> >prc-tools.  Is there a -target command-line switch or something
> >similar to make sure the PRC file is in the correct format?  Or more
> >to the point, is there a difference in the PRC format for different
> >versions of Palm OS?
> >
> >
> There's no special switch to use.  You just have to make sure that you
> have used API calls that are supported on any version that you want your
> app to run on.  So that means reading the docs to see if any of the
> functions warn about incompatible versions.  The best advice is probably
> to simply run your app on all the emulator versions that you want to
> support, and see what happens.  You'll find that it probably won't run
> on the earliest OS versions, unless you have been careful from the
> start.  If you want to support a broad range of devices, then that
> sometimes means rewriting your code, so as to avoid many of the nice,
> new functions.  Bob.
> 
> 
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