On May 14, 2010, at 2:45 AM, Billy Flatman wrote:
Thanks for you help. I am trying to pass the class reference around for drag and drop, I think i'll try your idea of converting the pointer to a number,
Encoding pointer values in archives is a very bad idea, since if the archive gets decoded in a different process, the pointer will be garbage and very likely to cause a crash.
You may think this isn't a problem for D&D since the result will get used immediately, but it's fairly easily for drags to get persisted: just drag to the Finder and you'll get a clipping file that can be dragged back into your app at any future time. It's also possible that another app might want to make itself interoperable with your app's drag format, which would be impossible if you use pointers.
Why not just archive the class's name? —Jens_______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
