On Nov 26, 2007, at 5:33 PM, Geoffrey Arnold wrote:
I love the promise of JNA, however I am stuck trying to integrate it
into our first project. We have a third party library (no source
available) compiled for Windows
...
I am trying to use JNA to invoke this function:
public interface FooBarLibrary extends Library {
int fooBar(String param1, String param2, String param3);
}
String param1 = "aParam";
String param2 = "anotherParam";
String param3 = ""; // NOTE: not using a Pointer
FooBarLibrary library = (FooBarLibrary)
Native.loadLibrary("FooBar", FooBarLibrary.class);
instance.fooBar(param1, param2, param3);
...and am receiving the following error:
java.lang.UnsatisfiedLinkError: Cannot locate function 'fooBar'
I fired up Dependency Walker and the library contains the following
method export:
_fooBar@12
You w32 version of the library is using the stdcall calling
convention, so on that platform you will need to use a
StdCallFunctionMapper (as a library option) to properly map the
function names, and you will also need to derive from StdCallLibrary
to get the right calling convention (or your VM will crash).
An easy way to do this is to define the basic interface, then derive
a w32 interface from that which includes the StdCall interface. Then
use one or the other depending on the current platform.
2 messages in net.java.dev.jna.usersRe: [jna-users] Another UnsatisfiedLi...
