Extended Tool Tips

FROM : Loukas Kalenderidis
DATE : Mon May 12 03:44:16 2008

Hi Guys,

I've been instructed to implement tool tips for an app such that a 
longer, more descriptive tool tip is displayed when the command key is 
held down. Allegedly there was a way to do this in Carbon that was 
part of the Help Manager API, but is there a Cocoa alternative? I've 
had a look at the NSToolTipOwner protocol but I've been unable to find 
anything that indicates it would solve my problem. I was thinking the 
best way to do it might be to bind all my tool tips application-wide 
to an object that overrides -valueForKey: which checks the command key 
status, and returns the appropriate tool tip. Is there a better 
solution?

Thanks!
Loukas