Direct Play PlayerID problem


I am using DirectPLay and visual to program a simple network game. At the moment the Server.SendTo sends to the PlayerID::AllPLayers, I would like to be able to see all the current players connected, create player groups and send to player groups. I have seen some code in the MSDN and I seen the methods in the IDE but can't work out how to retrieve the player ids. The game successfully creates a host, and mulitple clients can connect, but I want to create multiple games sessions on one host. At the moment all clients get all messages.


Help would be much appreciated, spent hours on this one issue.
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It looks like IDirectPlay8Server::EnumPlayersAndGroups can retrieve the player ids of all clients connected to the server.  IDirectPlay8Server::CreateGroup will let you create groups and IDirectPlay8Server::AddPlayerToGroup will let you add players to them.  Once you've got a group you can use its id with IDirectPlay8Server::SendTo.

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