Hi Tim

Test2.dll:

test2.h

#define FFACE_API __declspec(dllexport) struct INVENTORYITEM { short id; unsigned char index; unsigned char count; }; extern "C" FFACE_API INVENTORYITEM inventory(int index);

test2.cpp

#include "test2.h"

extern "C" INVENTORYITEM inventory(int index) { INVENTORYITEM item; item.count = 38; item.id = 1970; item.index = 30; return item; }

test2api.java

public INVENTORYITEM.ByValue inventory(int index); // public int inventory(int index);

public static class INVENTORYITEM extends com.sun.jna.Structure { public static class ByValue extends INVENTORYITEM implements
Structure.ByValue { } public short id; public byte index; public byte count; }

fface.h

#define FFACE_API __declspec(dllexport) struct INVENTORYITEM { short id; unsigned char index; unsigned char count; };

FFACE_API INVENTORYITEM GetInventoryItem(int index);

ffaceApi.java

public static class INVENTORYITEM extends com.sun.jna.Structure { public static class ByValue extends INVENTORYITEM implements
Structure.ByValue { } public short id; public byte index; public byte count; }

INVENTORYITEM.ByValue GetInventoryItem(int index); // int GetInventoryItem(int index);

My test2.dll mapped with the test2api using the structure return value returns
the valid values:

Test2Api$INVENTORYITEM$ByValue(allocated@0xa540e0 (4 bytes)) { short id@0=1970 byte index@2=30 byte count@3=38 }

My test2.ddl mapped with test2api using a int return value returns valid values
aswell:

639502258 (which is hex 0x261e07b2 featuring 38 (0x26), 30 (0x1e) and 1970
(0x07b2)).

My fface.dll mapped with the ffaceapi using the structure return value returns:

FFaceApi$INVENTORYITEM$ByValue(allocated@0x2c56ac8 (4 bytes)) { short id@0=0 byte index@2=0 byte count@3=0 }

My fface.dll mapped with the ffaceapi using the int return value returns:

639502258

I think thats the 2nd test with the test2api, right?

I did update the jna.jar to the latest before doing these tests.

Btw, the C# code I am using to verify the results from ffaceapi look alike this:

public static class FFACE { public static class Inventory { [DllImport("FFACE.dll", EntryPoint = "GetInventoryItem")] public static extern INVENTORYITEM InventoryItem(int index); } }

class Start { public static void Main() { INVENTORYITEM x = FFACE.Inventory.InventoryItem(1); Console.WriteLine(" item.id={0} index={1} count={2}\n", x.id,
x.index, x.count); } }

Is there anything missing? Don't think so.

Regards, Armin