Nov. 20, 2012, 8:09 p.m.
ATM only deals with ref now because we can't afford the space at the moment (unless we discover how to do auto-craft..
)
Assuming you're using SteamKit (https://bitbucket.org/VoiDeD/steamre), then this should get you started:
var msg = new ClientGCMsg<MsgGCCraft>();
msg.Body.Recipe = -2;
msg.Body.Items = 2;
msg.Write( itemId );
SteamContext.Instance.GameCoordinator.Send( msg, 440 );