Returns the numeric index corresponding to a chat message type. These indices are used in the default UI to identify lines printed in a chat window, allowing (for example) their color to be changed to match changes in the player's color preferences.
See also Chat functions.
Signature:
index = GetChatTypeIndex("messageGroup")
Arguments:
messageGroup- Token identifying a message type (string, chatMsgType)
Returns:
index- Numeric index of the chat type (number)