Hello all, I am faced with some win32 software that uses a structure like struct gizmo { double x; y; z; double q[4]; } Would it be legal to treat that as struct gizmo { double x; y; z; double q0; q1; q2; q3; } and then let Pharo define the fields? This is running on 32 bit winxp. A colleague is doing 3D magic with the resulting numbers, but Weird things appear to be happening. I am looking for ways that I might be causing them. It is also possible that the gizmo to which we are interfacing is just plain broken. Bill