Processing 1.0 - Processing Discourse - Dll given by a third party

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Dll given by a third party (Read 583 times)

fernando_ma

Dll given by a third party
Feb 5^th, 2010, 5:57am

Hi everyone,

I was given a dll that exposes several COM functions.
I want to call one of them (using java code) that is called LoginGUI() that returns a string.
the function in the dll is defined as IGlobalVision8API::LoginGUI.

I am trying to use Jnative and processing as I saw on one website.
How could I do that?

Thanks for your feedback.

I am working on a windows environement and i already tried the following:

[i]
import org.xvolks.test.bug.*;
import org.xvolks.jnative.com.utils.*;
import org.xvolks.jnative.misc.registry.*;
import org.xvolks.jnative.com.interfaces.structures.*;
import org.xvolks.test.*;
import org.xvolks.jnative.pointers.*;
import org.xvolks.jnative.com.typebrowser.business.export.*;
import org.xvolks.jnative.exceptions.*;
import org.xvolks.test.windows.*;
import org.xvolks.jnative.logging.*;
import org.xvolks.test.windows.trayicon.*;
import org.xvolks.test.callbacks.linux.*;
import org.xvolks.jnative.com.*;
import org.xvolks.jnative.util.constants.winuser.*;
import org.xvolks.jnative.com.interfaces.*;
import org.xvolks.jnative.util.windows.*;
import org.xvolks.jnative.util.win32session.*;
import org.xvolks.jnative.com.typebrowser.gui.panels.*;
import org.xvolks.jnative.toolkit.*;
import org.xvolks.jnative.util.windows.hotkey.*;
import org.xvolks.jnative.com.typebrowser.business.description.*;
import org.xvolks.jnative.util.mapi.structs.*;
import org.xvolks.jnative.util.mapi.*;
import org.xvolks.jnative.util.windows.structures.*;
import org.xvolks.jnative.util.windows.hooks.*;
import org.xvolks.jnative.*;
import org.xvolks.jnative.pointers.memory.*;
import org.xvolks.jnative.misc.*;
import org.xvolks.jnative.com.typebrowser.gui.*;
import org.xvolks.jnative.com.typebrowser.business.*;
import org.xvolks.jnative.util.ole.*;
import org.xvolks.test.com.*;
import org.xvolks.jnative.misc.machine.*;
import org.xvolks.test.callbacks.*;
import org.xvolks.jnative.util.*;
import org.xvolks.jnative.misc.basicStructures.*;
import org.xvolks.jnative.util.constants.*;
import processing.core.*;

public class Gv8Api //extends PApplet
{

public static final String DLL_NAME = "Gv8Api.dll";

private static JNative nLoginGUI;

public String LoginGUI() throws NativeException, IllegalAccessException
{
if(nLoginGUI == null)
{
nLoginGUI = new JNative(DLL_NAME, "IGlobalVision8API::LoginGUI"); // The actual "decorated" name in the DLL
nLoginGUI.setRetVal(Type.STRING); // tell JNative's DLL what kind of return data to expect
}
nLoginGUI.invoke();
return nLoginGUI.getRetVal();
}
}

PhiLho

Re: Dll given by a third party
Reply #1 - Feb 5^th, 2010, 7:43am

Just to know, why do you use JNative instead of JNI or, probably better/closer, JNA?
[EDIT] I looked at both. I discovered that unlike what I thought, JNA isn't a product of Sun! So they are at same level, apparently stable. JNA home page doesn't even mention C++ so I don't if it supports this. So, JNative isn't a bad choice in itself, even if apparently it haven't been updated for 2 years (hey, if it is stable...).
Mmm, make that 1 year for the latest download.

Are you sure these are Com functions or are they just "plain" C++ functions? Com is harder to make to work and might need some inits (I believe, I have little experience in the field...).

And since we don't have your DLL, we cannot try your code. You don't tell us what goes wrong.

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