DirectPlay.Peer. HostMigrated problem.

Hello. I'm using DX9 DSK. DirectX.DirectPlay.Peer class. I create 2 players on one computer. 1 - Host() with SessionFlags.MigrateHost | SessionFlags.NoDpnServer | SessionFlags.FastSigned flag. 2 - FindHost() and Connect() to 1'st host. If 1'st player shuts down, 2'd receives HostMigrated event and (I think) become host. After that i create 3'd player in my own comp and it can not find host (FindHost() - nothing). But 2'd player still running. Thus 3'd player create host (with same session name as in 1'st and 2'd player) without exception?!?! 4'th player will find the host from 3'd player and will receive events from this session. It seems like 2 hosts with the same session name and same App GUID. Fantastic!

http://www.gamedev.net/community/forums/topic.asp?topic_id=186027 Instance A assigns the port # since it is hosting on it. All other instances have to bind to other ports. When A goes away and B gets elected host, then A's port # is no longer the reference for enumeration; it should be B's but you don't know it since it was dynamically assigned when B *joined* the session. The only way around this is *not* to look for a port but to look for any running game on a specific machine and filter by its application GUID. In the DPN_APPLICATION_DESC struct, just set the guidApplication field and set the others to 0. In the address you pass to EnumHosts(), just set the SP for CLSID_DP8SP_TCPIP and the DPNA_KEY_HOSTNAME field for the machine name you wish to enumerate from and nothing more. That will tell EnumHosts() to look for any running session matching your application GUID on that particular machine. If you don't set DPNA_KEY_HOSTNAME, then you will enumerate from the 'localhost', the machine EnumHost() is being called from.

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igor 022y ago
http://www.gamedev.net/community/forums/topic.asp?topic_id=186027 Instance A assigns the port # since it is hosting on it. All other instances have to bind to other ports. When A goes away and B gets elected host, then A's port # is no longer the reference for enumeration; it should be B's but you don't know it since it was dynamically assigned when B *joined* the session. The only way around this is *not* to look for a port but to look for any running game on a specific machine and filter by its application GUID. In the DPN_APPLICATION_DESC struct, just set the guidApplication field and set the others to 0. In the address you pass to EnumHosts(), just set the SP for CLSID_DP8SP_TCPIP and the DPNA_KEY_HOSTNAME field for the machine name you wish to enumerate from and nothing more. That will tell EnumHosts() to look for any running session matching your application GUID on that particular machine. If you don't set DPNA_KEY_HOSTNAME, then you will enumerate from the 'localhost', the machine EnumHost() is being called from.