Grr, garbage collector, don't move my arrays!

[BlueEyedCat]

Hi;

I need a memory block allocated on heap (on a fixed posisiton) that GC can't move. I need this because unmanaged code will read data from this memory block on a multi-threaded manner (so "fixed" statement will not work since threads in unmanaged code may still be manipulating this memory though code flow fell out of fixed scope).

Is this possible with C#? Or do you recommend using nasty GlobalAlloc api to allocate memory on heap manually from C#?

Thanks all...