> On 2014/09/19, at 18:54, Graham Cox <graham....@bigpond.com> wrote: > > >> On 19 Sep 2014, at 7:43 pm, Daryle Walker <dary...@mac.com> wrote: >> >> Long ago, in the 1990s, I remember there was some web page on Apple’s server >> that let you register a four-character type code, for either type or >> creator. I’ve been trying to find it lately. I sometimes found references >> that could be it, but following the link either went to the Apple Developer >> search page that Apple uses for resource-not-found errors or went to the UTI >> guide, neither of which help. >> >> Is there a version of the page still around? I want to use a vanity creator >> code in my Info.plist, but I want to ensure uniqueness if the code is still >> used for matching. If the code is ignored nowadays, can I put a vanity value >> there, or do I have to keep it “????”? I noticed (due to work in another >> thread) that Safari has a creator code (“sfri”), and I think TextEdit reuses >> TeachText/SimpleText’s creator code (“ttxt”). > > > AFAIK, those codes are not used anywhere by OS X, and you can put what you > like there. In theory the code might be used by a Carbon app running in a > very old version of Mac OS (e.g. Classic environment or pre OS-X) but I > expect you can count the number of those systems still running on the fingers > of one hand. > > Certainly registering codes is no longer done, so I doubt there's any way to > do it. Maybe there's a dust-laden cobweb strewn room somewhere in Apple's > basement, long forgotten, where a lonely phone rings whenever someone tries > to register a creator code, but the guy that used to answer it has long since > died and nobody's noticed yet. > > --Graham > > > > _______________________________________________ > > You can't register those anymore. (For a very long time now. ) They probably persist mainly to support legacy files that might not have an extension or other way to identify the right apps to open them. Pretend they do not exist unless you're handling really old data from the 80's and 90's.
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