Hi !

I also use a structure with a field being an array of structures. I found a solution which works for me. Hope this helps:

// here is my table of Structures PCF_PAIR_INFO ppi = new PCF_PAIR_INFO(); PCF_PAIR_INFO[] ppis = (PCF_PAIR_INFO[])ppi.toArray(nbPairs); // here I have a loop to init all the PCF_PAIR_INFO the way I want.

The PCF_PAIR_INFO class: public class PCF_PAIR_INFO extends Structure {

public float distance; //... all fields here public float co_tail;

public PCF_PAIR_INFO(){}

public void init(float z1, float z2, float v1, float v2){ this.distance = Math.abs(z2-z1); // filling every field here with this method. this.co_tail = 0f; write(); // this appears to be mandatory (I tried without...No success in further steps). } }

Back to my main Java class: PCF_DESCR pdescr = new PCF_DESCR(xxx, xxx, xxx, xxx, xxx, ppis[0].getPointer());

The PCF_DESCR class (the one with the nested structures): public class PCF_DESCR extends Structure {

// xxx fields... public Pointer pair;

npublic PCF_DESCR(){}

public PCF_DESCR(int xxx, int xxx, float xxx, int xxx, long xxx, Pointer p){ this.dimension = dim; this.vario_type = vt; this.missing_float = mf; this.missing_int = mi; this.nb_pairs = np; this.pair = p; } }

So in fact I give PCF_DESCR a pointer to the first element of my PCF_PAIR_INFO[] table (at least that is the way I understand it). I finally use a PCF_DESCR as an input of a C function. As I have the C sources, I put a good old fprinft in the C function before building the library: all elements from my PCF_PAIR_INFO[] are perfectly transmitted to the C when I call it from my Java code.

Cheers,

Sylvain.