Raised when an ImprovedInstantMessage packet
is recieved from the simulator, this is used for everything from
private messaging to friendship offers. The Dialog field defines
what type of message has arrived
Declaration Syntax| C# |
public event EventHandler< InstantMessageEventArgs> IM
Assembly: OpenMetaverse(Module: OpenMetaverse.dll) Version: 0.9.3.3318 (0.9.3.3318)