Passing unmanaged pointer field contained in managed class to unmanaged code?

I don't see why you'd need to pin it - even if the GC moves obj itself, the value of obj. Ptr shouldn't be affected - and obj. Ptr is passed to your C++ code by value, so it's not like the C++ code can try to change the contents of obj.

Thanks, this is what I am assuming. – Benny Jul 3 '10 at 7:57.

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