通过注册的URL方案启动OS X应用程序时，如何访问完整的URL？

在您的应用程序委托的中

-applicationWillFinishLaunching:

[[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleAppleEvent:withReplyEvent:) forEventClass:kInternetEventClass andEventID:kAEGetURL];

并且

handleAppleEvent:withReplyEvent

- (void)handleAppleEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent {    NSString *urlString = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];    // do something with the URL string}