perl plugin newbie question

[Johnson Earls]

Hey folks,

Please forgive me if this is not the proper place for plugin developer questions.

I'm trying to write a the perl plugin to modify the flags of a message in the receiving-chat-msg signal handler.  I can't find any documentation or examples showing what the semantics of the @flags parameter to the receiving-chat-msg callback in perl are.  Can anyone explain how the parameter works and what the expected / allowable values are - or where to find this info in the docs or source?

Thanks,
-dfp