Thank you for the quick answer. Maybe I was not clear enough in my previous
question.
My problem is not reading the values from a given memory block but filling such
a memory
block with the given Structure in order to be passed as parameter in a call of a
C function.
I tried different mappings and different ways to fill the values but without
succes till now.
Thanks again,
Valentin
Date: Mon, 21 Jan 2008 11:16:47 -0500
From: Timothy Wall <twal...@dev.java.net>
Content-type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Subject: [jna-users] Nested structure array problem
On Jan 21, 2008, at 7:24 AM, Zaharescu Valentin wrote:
Hello,
till now I could manage well with mapping from Native C.
However I reached a point where the memory is not filled correctly,
it's always null for an internal list.
Here the the C code:
typedef struct MyStructList
{
MyStruct **list;
int64_t length;
} MyStructList;
Assuming your list is an array of struct contiguous in memory:
class MyStructList extends Structure {
Pointer list;
long length;
MyStruct[] getList() {
return new MyStruct(list.getPointer(0)).toArray((int)length);
}
}
class MyStruct extends Structure {
public String name;
public long index;
public MyStruct() { }
public MyStruct(Pointer p) {
useMemory(p);
}
}
If your list is an array of pointers to struct contiguous in memory,
then you would use Structure.ByReference[].
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3 messages in net.java.dev.jna.usersRe: [jna-users] Nested structure arra...
