Thank you tilly. Not only have you helped me understand the problem of "tight coupling" vs. inheritance, you have set me on the right path by pointing out the pitfalls in my current path. I will try another tact with my code... encapsulation and information hiding would be worthy causes to pursue, I don't even know how I can do that when multiple classes are involved without resorting to multiple inheritance.

In any case, this has been an instructive thread, if I may say so myself.

--
when small people start casting long shadows, it is time to go to bed

In reply to Re^4: Understanding 'Multiple Inheritance' by punkish
in thread Understanding 'Multiple Inheritance' by punkish

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