Internet Direct (Indy) Version 9.0.1 Beta
TIdTunnelSlave.NumClients
Indicates the number of client connections to the server.

property NumClients: Integer;
Description
NumClients is a read-only Integer property that indicates the number of client connections for the TIdTunnelSlave server. NumClients is maintained by the server when a new client connection is requested, or a client connection is closed.