Getting HideOnLaunch right

In a previous post I described how to set up an app to launch automatically on login. After posting that, I've noticed that it seems like the "Hide on launch" property often seems to be mixed up with the kLSSharedFileListItemHidden key (for an example, see this thread from 2008 on Cocoa-dev).

So in an attempt to improve chances of people finding the right answer when searching for the incorrect key kLSSharedFileListItemHidden, here is the relevant snippet again:

NSDictionary *properties =
    [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:YES]
                                // NOTE, notice the key name:
                                forKey:@"com.apple.loginitem.HideOnLaunch"];

LSSharedFileListItemRef itemRef = 
    LSSharedFileListInsertItemURL(loginItemsListRef,
                                  kLSSharedFileListItemLast,
                                  NULL,
                                  NULL,
                                  (CFURLRef)bundleURL,
                                  (CFDictionaryRef)properties,
                                  NULL);
...