I've been hammering my head against this for two days now. Does anyone have a simple example of an Array of Struct being passed to a com.sun.jna.Callback described callback method through JNA that you'd care to share?

Of all the various ways I've tried to shake this loose, I can only seem to get at the first Struct in the array.

The Java version of the struct is quite simple:

public class RegionElement extends Structure { public long frameId; public double[] regionBox = new double[4]; };

The C-verison:

struct RegionElement { long long frameId; double regionBox[4]; };