[MacRuby-devel] How do I subclass Obj-C classes in MacRuby?

7 May 2010

      This is only true if you follow objc init I think... for example...

I came across this problem with NSWindowController and it took me a while to figure out.

class PasswordController < NSWindowController
def initialize
    initWithWindowNibName("Password")  ##FAIL Never called! init called instead
end

class PrefController < NSWindowController

  def initialize(owner)
    @owner = owner
    initWithWindowNibName("Preferences")
  end
end

The first example fails and so I finally got that I needed the init method to make the window appear but I couldn't figure out why the second option worked.

Must have been a long day but clearly if designate an initialize with a param init is bypased...

so if I take the 
class A <String 
  def initialize(b)
     super
  end
end
  example and do A.new("hi there") gives

initialize
=> "hi there"

so what is going on? I think there might need to be some clarity..... 

Terry

[MacRuby-devel] How do I subclass Obj-C classes in MacRuby?

Terry Moore