Hi

Took the latest release of jna package and retried my example. Still getting
that Invalid memory access exception.

The dll I am using for this test is done with VC++ 2008 Express edition, its
pure C, no C# involved. The signature of the dll function looks appropriate according to depends.exe. When I change the signature of the JNA interface to receive an
int instead of a structure I get the value 639502258 (0x261e07b2). The structure contains in this order id (short), index (byte) and count (byte) from top to
bottom. The values I set in the dll are id=1970 (0x07b2), index=30 (0x1e) and count=38
(0x26). I did verify once more the INVENTORYITEM structure of C with the one from java
and they are equal. I'd gladly share my sources if that helps you in any way.

Let me state this to make things clear: I am not blaming JNA of doing something
bad. Its probably me, like usual. I appreciate your help very much. The only success
I got so far is to get an int instead of the struct that seems to contain proper data.

Regards, Armin