There are several discussions about this. You should search the archives.
Many people are in favor of crippling an application in some way, rather
than expiring it after a period of time. To properly expire a program, you
would have to store a date on the device that would not be deleted when the
application is deleted. Therefore this date would be left on the device
until a user performed a hard reset. The premise here, is that if every
application did this, there would be a bunch of garbage on your device that
you could not delete. Unless Hard Resetting.
__________________________________________
Guy Duplantier
Software Developer
AEC Software, Inc.
www.aecsoft.com
__________________________________________
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Nesse,
Rustin
Sent: Friday, November 17, 2000 11:52 AM
To: Palm Developer Forum
Subject: RE: coding 30-day demo
Well, you can check the time in the preferences, save the date at the
first run of the program in your app prefs, then check each time it's
run...
The way around this, of course, is to change your Palm's date constantly
so that it never reaches 30 days after the install.
You could also try doing a number of demo runs, by incrementing an app
preference each time the application is run, therefore, at say, 100 runs,
the app will time out, and in your AppStart, you put up a message saying:
"Application expired...please contact (...) to order a full version.
Advantages are: (...)"
Just an idea...might be easier for you to implement.
-Rus
>Hi, can anyone advise me on how to implement barring on an application
>after 30 days, and registration in this case? what I mean is a
>30-day fully
>functional demo.
>
>Thank you
>Fran
>
>
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