Re: Palm single-purpose "stand alone" device
- From: Logan Shaw <lshaw-usenet@xxxxxxxxxxxxx>
- Date: Thu, 20 Oct 2005 02:53:10 GMT
John wrote:
On Tue, 18 Oct 2005 20:38:16 GMT, "Stuart" <stuart_rubin@xxxxxxxxxxxxxxx> wrote:
Does anyone have any information on developing Palm applications and/or modifying the OS such that a single purpose, dedicated device can be
created?
If you use a model with a replaceable or reflashable ROM, you can create your own system ROM
The alternative is to create a program that monitors all the system activity (traps all the hard/soft keys, resets, alarms, etc) and ensures that only your application is available. Of course, your application does have to be started once for it to take over the PDA, unless you use an installer that causes the program to run immediately upon installation.
You can set a bit on a Palm database that causes the Palm to do a soft reset after the app's PRC is hotsynced. Your app should receive a notification at soft reset (I don't think you have to register for this notification) and you can do whatever you want to take over from there.
Unfortunately, a smart user can always do a no-notify reset and prevent your app from ever being able to run and take over. So, it's not totally bulletproof, but it could be fairly good.
- Logan .
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