Java Comm Problem

[NeilV]

Hi,

I am trying to write an application to read from the COM port on my PC using the java communications api. However, when I try to enumerate the ports on my Windows 2000 PC it doesn't return any ports.. Here is my Code:

import javax.comm.*;
import java.util.*;

public class PortList {
public static void main(String [] args){

Enumeration portList = CommPortIdentifier.getPortIdentifiers();

while(portList.hasMoreElements()) {
CommPortIdentifier portId = (CommPortIdentifier)portList.nextElement();
if( portId.getPortType() ==
CommPortIdentifier.PORT_SERIAL)
{
System.out.println("Serial port: " +
portId.getName());
} else if (portId.getPortType() ==
CommPortIdentifier.PORT_PARALLEL)
{
System.out.println("Parallel port: " +
portId.getName());
} else
System.out.println("Other port: " +
portId.getName());
}
}
}

What am I doing wrong??

Neil

 

[idarke]

Your code is fine. I ran it on my Win2000 box with no problem.

Make sure the win32com.dll that came with the java comm library is in your winnt/system32 folder. It won't work without it.