I dont know what this is called and cant find anything on this...
When your in iphoto and click share a list of apps show up to do the sharing through, facebook and Twitter (if installed) email, sms, etc. How do I get my app in that list so when the user wants to share a photo my application is available to be the one to do the sharing. Im assuming the ios passes the photo to the app and myapp catches it and does work with it.
Thanks