I do remember him saying that. I was wondering the utility, since you
can't save to a device that isn't there.
Since the Launchpad has an Eject button, I was wondering if it only gave
notification of you click that button.
BTW, I just tried a test with the RunRev U3 Prototyper, and if you "Install
from my computer" a .u3p, it appears on the Launchpad.
At 03:47 PM 6/27/2006, you wrote:
Peter T. Evensen wrote:
Is it really "hot unplugging shutdown" or do you only get the shutdown
messages when you choose eject from the U3 menu?
The gentleman from U3 at RevCon, Nathan Gold, gave a very polished
presentation of the "smart" drives, which included a demonstration of this
notification in action -- it is indeed sent when the device is removed,
provided your application has been written to respond to the message.
While it's handy to have that notification, I can see only two real-world
uses for it:
- Unique to U3: If you need to leave a machine immediately, you can have
apps shut down instantly. The downside to this of course is that you'd
lose any data in memory, but you would have an instant exit.
- Not unique to U3: Your app can advise the user that they need to
re-insert the device in order to save their data. While convenient to
provide that notice at the time the drive is removed, you can also provide
that notice in any app running from any removable media when a Save is
attempted and the volume is no longer present.
The "U4" initiative (which aims to provide a helpful subset of U3
behaviors for all removable drives) encourages the latter at a minimum,
and may include a polling mechanism to provide the former as well:
<http://groups.yahoo.com/group/U4-Group/>
"U4" attempts to put the "Universal" back in "USB". :)
Peter T. Evensen
http://www.PetersRoadToHealth.com
314-629-5248 or 888-682-4588
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