Camera can not be detected! any ideas?

Question

i am programming a microsoft which just likes NetMeeting,and i have a problem now.this question might seem silly to you ,but i am a new jmf_er,so i need your help!
to detect camera ,i wrote the code as follows:
Vector list = CaptureDeviceManager.getDeviceList ( null );
if ( list != null )
for ( int i=0; i<list.size(); i++ )
devInfo = (CaptureDeviceInfo)list.elementAt ( i );
name = devInfo.getName();
System.out.println(name);
if ( name.startsWith ("vfw:") )
System.out.println ("DeviceManager List : " + name );
capDevices.addElement ( new MyCaptureDeviceInfo ( devInfo ) );
but i discovered that there is no name starts with ("vfw:")!and the camera can be detected when i use another microsoft !
i do not know what is wrong ,
any ideas are welcome,thank you!
Regards
Adigan

Answer 1

The ist thing is that ur code is incorrect
the last statment (addElement)is not meant to be here
use the following code..
CaptureDeviceInfo devInfo=null;
Vector list = CaptureDeviceManager.getDeviceList ( null );
  if ( list != null ){
        for ( int i=0; i<list.size(); i++ ){
                          devInfo = (CaptureDeviceInfo)list.elementAt ( i );
                      String name = devInfo.getName();
                      if(name.startsWith ("vfw:")){
                           dExist=true;          
                                                                         break;
     if(dExist==true){
               MediaLocator m = devInfo.getLocator();
                DataSource ds = null;
     try {
          ds=Manager.createDataSource(m);                                Player player = Manager.createRealizedPlayer (ds);
                   player.start();              
                    Component videoScreen= player.getVisualComponent();
          Frame frm=new Frame();
          frm.setBound(100,100,300,300);
          frm.add(videoScreen);
                                          frm.setVisible(true);
     } catch (Exception e) {
else{System.out.println("no device exist");}