> Short answer: you can't. The same would happen with normal classes. > > Long answer: You could add an additional method "Next" to your "TIntTree" > which returns a "TIntTree" and just do "Result := TIntTree(inherited > Next);" there. > > Why are you subclassing in this case anyway? > Thanks, I will inherit the method. I need to add features in the sub-class. This empty TIntTree is just to show the problem.
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