About dll from java swing

Hi,
I hava class (send sms from java) in dll - ActiveXComponent type, his name: SMSCom
dll name: SMSSender
that get in his constractor: (in VB I wrote this)
SMSObj.password = password;
SMSObj.Username = user;
SMSObj.Source = phone;with this code I'm connect to the dll file and his object, but
I don't know how to give this object this parameters.
ActiveXComponent ax = new ActiveXComponent("SMSCom.SMSSender");
Dispatch SMSObj = (Dispatch) ax.getObject();Thanks alot for any help :)

Thank you so moch, you helped me alot!!!!!
I you coul'd help me with last little thing I'll be happy:
but I have error, it is not attached to your help, the error link to this line
(I have jacob.dll +jacob.jar)
ActiveXComponent ax = new ActiveXComponent("SMSCom.SMSSender");the error messege:
Exception occurred during event dispatching:
com.jacob.com.ComFailException: Can't get object clsid from progid
     at com.jacob.com.Dispatch.createInstance(Native Method)
     at com.jacob.com.Dispatch.<init>(Dispatch.java)
     at com.jacob.activeX.ActiveXComponent.<init>(ActiveXComponent.java)
     at com.matarotqm.QM6.model.Test1.<init>(SmsDll.java:51)
     at com.matarotqm.QM6.model.SmsDll.<init>(SmsDll.java:27)
     at com.matarotqm.QM6.view.Sms.actionPerformed(Sms.java:273)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at javax.swing.JComponent.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.Dialog$1.run(Unknown Source)
     at java.awt.Dialog$2.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.awt.Dialog.show(Unknown Source)
     at java.awt.Component.show(Unknown Source)
     at java.awt.Component.setVisible(Unknown Source)
I have in this object (SMSObj) method that I have to set her text as String and phone as String.
do I call method from SMSObj like this?
System.out.println("Calling method..");
Dispatch.call(SMSObj,"SendSMS","Hello From Java","0507657661");

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Yes, I have.
I didn't include the code yet because I thought if someone had similar trouble, there might be something obvious I am overlooking and they wouldn't even need to see the code. I can provide it, however.
This is the C++ DLL
// consoledaq.cpp : Defines the entry point for the console application.
#include <windows.h>                    /* Compiler's include files's */
#include <string.h>
#include <stdio.h>
#include "cbw.h"
#include "stdafx.h"
#include "dllinterface.h"
#include "jni.h" //can copy or give full path
#include <math.h>
BOOL APIENTRY DllMain( HANDLE hModule,
                       DWORD ul_reason_for_call,
                       LPVOID lpReserved
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#define BOARD_NUM      0                /* Number of A/D board as defined with InstaCal */
#define BUF_SIZE       10048            /* Size of buffer */
#define NUM_SECS       10                /* Number of secs to collect data */
#define ADRANGE        BIP5VOLTS        /* A/D voltage range */
#define TIMER_NUM      1                /* Windows timer used by this program */
static HGLOBAL MemHandle32;
/* Variables for AinScan */
static unsigned short *ADValues;    /* Win32 pointer to A/D buffer */
static HGLOBAL   ADMemHandle;
static short     ADCurStatus;       /* Current status for D/A scan */
static long      ADCurCount;        /* Current count for A/D scan */
static long      ADCurIndex;        /* Current index for A/D scan */
int              ADOptions;
long       Count, Rate;
float      Voltage, Voltage2;
unsigned short CurValue, CurValue2;
JNIEXPORT void JNICALL
Java_daq_startget(JNIEnv *env, jobject obj)
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     ADValues = (unsigned short *)GlobalLock(MemHandle32);
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     Rate = BUF_SIZE / (NUM_SECS * 2);
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          cbWinBufToArray(ADMemHandle, &ADValues[ADCurIndex], ADCurIndex ,2);
          CurValue = ADValues[ADCurIndex];
          CurValue2 = ADValues[(ADCurIndex + 1)];
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          CurValue = 0;
          CurValue2 = 0;
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     theArray = env->NewFloatArray(2);
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     tmp[0] = Voltage;
     tmp[1] = Voltage2;
     env->SetFloatArrayRegion(theArray, 0, 2, tmp);
     return theArray;
}And this is the Java class:
* To change this template, choose Tools | Templates
* and open the template in the editor.
package fileiotest;
* @author Owner
public class dllinterface {
    public native void startget();
    public native float[] getpoint();
    public native void stopget();
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        dllinterface DI=new dllinterface();
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      dllinterface DI=new dllinterface();
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      return newtempfloat;
}

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maria_eg wrote:
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java_and_me wrote:
I am trying to call a dll from my java application. Pls tell me how to do it, I seached and found JNI. Is it trueYes, it is true. JNI is the way to go. You'll probably have to write some C code on your own as well, as the DLL is unlikely to be in the format expected by Java already.
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Hi,
From within the Java code I want to use the
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You seem to be confused...
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Unless I'm mistaken, a dll is not executable. A dll is a library of code. This code has (hopefully) some well-defined entry points (declared in a header file somewhere) which you must call in a C/C++ file. The arguments you pass to the dll will come from java through JNI.
As far as your understanding of this entire process, it is obviously confused beyond the scope of a simple reply. I recommend you read the examples and ALL of the documentation available here:
http://java.sun.com/docs/books/tutorial/native1.1/index.html
When you get the/an example running (or just set up to run) then post your code and comments here for more help.
Ian

Call a C# dll from java is work only with the machine which is build C# dll

hi all,
I've built a VC++(win32 console dll app)..
Created a Java program to access the said VC++ dll
It was successful in the machine(say machine 1) which is created the VC++ dll..But Not work with machine2
n.b VC++ dll is accessing another VC#dll
If I combile the VC++ dll in machine2 then then its works fine with machine2 while access from java But not work with machine1
Problem comes when I run the same application in a different system where all the
needed visual studio files are installed...
I tried by create the VC++ dll with skipping the part of accessing VC# dll, then it works fine with anotther machine
NB: error accurs only when it is run on a different machine...
Error is:
# An unexpected error has been detected by HotSpot Virtual Machine:
# Internal Error (0xe06d7363), pid=4024, tid=4028
# Java VM: Java HotSpot(TM) Client VM (1.5.0_09-b01 mixed mode, sharing)
# Problematic frame:
# C [kernel32.dll+0x1eb33]
# An error report file with more information is saved as hs_err_pid4024.log
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
i've done "googling" with this error... but no one has come up with some satisfactory answer...
Pls help.....
conf. of both machine
Windows XP
jdk1.5.0_09, jre1.5.0_09
thanks in advance..

Normally any system exception that occurs when working with JNI is caused by one of the following.
- pointer problems
- incorrect usage of another api
- bug in the api being used.
The last two are often still pointer problems.
The fact that it ones one machine and not another makes it more likely it is a pointer problem (in one or more of the above.)
A pointer problem cause cause the system to fail long after the point where the bug actually is (coded.) Different execution paths, such as running on different machines, means the bug will manifest itself differently.

About dll from java swing

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