OK. What I wanted was to have only one reference to the outlets in the 'base class' that can be used in the sub classes.

I did not realize I had to connect the outlets defined in the base class through the sub class.

I have the behavior I was expecting now.

Thanks Kyle for the pointer to the CocoaNibs.html

-db


On Jan 25, 2010, at 8:51 PM, Kyle Sluder wrote:

On Mon, Jan 25, 2010 at 7:43 PM, David Blanton <aired...@tularosa.net> wrote:
Class A is a subclass of NSView
Class B is a subclass of Class A

Class A and Class B are in a NIB.

Classes don't live in nibs. You mean an object of class A and an
object of class B live in the nib.

Class A as an Object - the blue cube
Class B as a view in a window.

So your instance of A and your instance of B are entirely unrelated.


When the program runs:

Class A's init method is called
Class B's awakeFromNib is called
Class A's awakeFromNib is called

Class B will have been initialized with -initWithFrame:, as documented
in the Resource Programming Guide:
http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/LoadingResources/CocoaNibs/CocoaNibs.html

As the documentation explains, your instance of class A is encoded as
an object placeholder, whereas your instance of class B has been
encoded as a custom view placeholder.

--Kyle Sluder




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