How to make a real private instance variable?

Question

I want to make an instance variable that can\'t be accessed from outside. Is something like that possible in objective-c? I remember Apple has private variables and stuff li

Answer 1

I saw the following usage in a sample app (PaintGL) by Apple

In .m file

@interface MyClass (private)
  - (void) privateMethod();
  @property(...) myProperty;
@end

Disclaimer: The sample app only has method declarations, I saw the private property declaration in this SO thread