Internet Direct (Indy) Version 9.0.1 Beta
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property OnCommandNick: TIdIrcTwoParmEvent;
Parm2 is an optional parameter that contains the number of hops from the home server for the user. A local connection has a hop count of 0. If Parm2 is supplied by a client, it is ignored.
The server cannot allow two users to have an identical Nickname. If a Nickname collision occurs, both connection with the Nickname are closed and the entries are removed from the server database.