[Arclite]

How do apps like iSeek and SubEthaEdit respond to special URLs throughout the system? I'm talking about things like iseek:// and hydra://. Do they have to get a special server? Can it be done in Objective-C? (I think that's what those two programs are written in anyways). I know moki frequents the MacNN forms, not necessarily this one, but I doubt he'd be privy to giving out secret information. Unless it's something easy and public knowledge. Thanks in advance.

[Diggory Laycock]

URL schemes are dealt with by LaunchServices.

In order to let LS know that your app can handle URL schemes you need to add keys to your Info.plist

I can't seem to find the official Docs, but here's something to get you started:

http://them.ws/?p=775

[Rickster]

Yep -- you define URL types in you Info.plist the same way you define document types. Project Builder / Xcode even has a spiffy little editor for them.

Of course, that's just what you need to do to get the system to hand off URLs to your app. To actually do something when handed a URL, you need respond to the standard "GetURL" AppleEvent (suite 'GURL', event 'GURL'). This is pretty easy to do with Cocoa's scriptability support.

[Arclite]

It works! Thanks for the help, you two!