i would try :

-try to do a "telnet 127.0.0.1 1234" from the command line window and check VLC accept the connection
-check firewall option so that VLC is allowed to open a port.
-use loopback address (127.0.0.1 and not lan ip 192.168.xx.xx) (it both programs are on the same machine)
-download "process explorer", install it, and use it to check if VLC really opened the port (maybe the config option changed...)
(open process explorer, find VLC process, double click it, check in the tab "TCP/IP")

i hope this helps ! :)

henri

Thanks a ton henri. thats helps..
have cracked it.
will post the final code in a day or so..
cheers,
sures kumar

Here is my code snippet.
open vlc from command line

1. vlc video.ext  --intf rc --rc-host 127.0.0.1:1234

This reads the current time of the media from VLC player and prints in Processing.
On pressing 1, the video jumps to 56th sec.
On pressing 2, the video plays / pauses.

1. import processing.net.*;
   Client client;
   int intt;
   String temmp;
   
   void setup(){
     size(200, 200);
     noStroke();
     client = new Client(this, "127.0.0.1", 1234);
   }
   
   void keyPressed()
   {
     println("key pressed = " + key);
     if (key == '1')
     {
       client.write("seek 56" +"\r\n");
       client.clear();
     } 
   
     if (key == '2')
     {
       client.write("pause" +"\r\n");
       client.clear();
     }  
   } 
   
   void draw() {
    
   client.write("get_time" +"\r\n");
    
   while (client.available() > 0)
     {
       temmp = client.readString();
   
       if (temmp.length() > 5)
       {
         println("Buffer Bump");
       } 
       else
       {
         temmp = trim(temmp);
         intt = int(temmp);
         println(intt);
       } 
     } 
   }
   

There are various other vlc commands available here
I am using this code in an interactive cinema project.

Cheers,
Sures kumar