bluestacks

Why do arrays in c# have fixed size, if they are dynamicly allocated on the heap? Is it just because the reference for the array is allocated on the stack? Does this mean that c++ dynamic arrays are completely allocated on the heap, even their reference?

How can I get the memory address from Bluestacks, then use it in C# to display values? I know how to use CE, but not in BS, I don't know where to attach CE.