OnFinger or OnEnrollFinger Events are not firing.

[mfkj]

I am trying to use OnFinger or OnEnrollFinger events but none of them is working.
` public bool Connect_Net(string IPAdd, int Port)
{
if (objCZKEM.Connect_Net(IPAdd, Port))
{
//65535, 32767
if (objCZKEM.RegEvent(1, 32767))//old
//if (objCZKEM.RegEvent(1, 65535))
{
MessageBox.Show("Connect_Net");
// [ Register your events here ]
// [ Go through the _IZKEMEvents_Event class for a complete list of events
objCZKEM.OnConnected += ObjCZKEM_OnConnected;
objCZKEM.OnDisConnected += objCZKEM_OnDisConnected;
objCZKEM.OnEnrollFinger += ObjCZKEM_OnEnrollFinger;
objCZKEM.OnFinger += ObjCZKEM_OnFinger;
objCZKEM.OnAttTransactionEx += new _IZKEMEvents_OnAttTransactionExEventHandler(zkemClient_OnAttTransactionEx);
objCZKEM.OnAlarm += OnAlarm;
objCZKEM.OnNewUser += OnNewUser;
objCZKEM.OnKeyPress += OnKeyPress;

            }
            return true;
        }
        return false;
    }`

Even i tried to add all the above event but none of them is working. Although other feature of your application are working fine. Whats i am doing wrong?