One delegate's method doesn't work

FROM : Lorenzo
DATE : Fri Dec 24 01:52:33 2004

Hi,
I have a removable marker in my NSRulerView.
I remove the marker with the mouse, the marker disappears properly. Good.
The method "didRemoveMarker" is automatically invoked by the delegate. Good.
The method "shouldRemoveMarker" is never invoked. Never. WRONG!

I don't understand how the method didRemoveMarker works, the method
willMoveMarker works too, and the method shouldRemoveMarker doesn't. What
did I forget? Is a Cocoa bug?


Best Regards
--
Lorenzo
email: <email_removed>