Listening for General Chat / Instant messages inside modified client

Hello. This is not an LSL quesiton, but about modifying the client's C++ Code. I am trying to figure out how to create and register a callback for receiving chat message events, or receiving an instant message.

I did not find a forum dedicated to modified client on this webpage, so I put it into this forum.

Best place to query would be the sldev mailing list:

https://lists.secondlife.com/cgi-bin/mailman/listinfo/sldev

I've done this for a name-to-key mapping. I'll post the patch in a moment. It was created in the 1.21 branch, but my patch utility can still find the right places to apply the changes, and examining the changes should give you an idea of how it was done as well.

Here you go. Some notes on it:

1.) This was only meant to be a little temporary test patch thing (though I have gotten some use out of it). I didn't go by the LL naming conventions on class names or local variables or anything. Also, some places I use "HZ" and some places I use "MH". Shouldn't be too confusing, but I'm not explaining the history.

2.) The idea is that it listens in local chat and the IM window for someone (I'd have to look at it again to see if it accepts object chat; I THINK it did) to say "getkey avatarName" and responds via a whisper or an IM, respectively. You can issue the command yourself, at least in chat (can't remember if it works for YOU in the IM window; probably not).

3.) The patch file would be applied by going to the root SVN checkout directory and using the POSIX patch utility like: "patch -p 1 <pathToPatchFile". If you're in Windows or something, get cygwin or whatever. Or apply it by hand, which shouldn't be too hard from looking at the contents of the patch file.

Oh yeah. Author hereby grants permission for you (anyone) to use it however you wish, but by doing so you accept full liability for any damages or hurt feelings that may arise, etc. Note that if you use it in conjunction with the SecondLife product or source code, you must also honor Linden Lab's licences and terms. Use, modify, or redistribute in any fashion. Credit to the author would be appreciated, but is not required.

This is from very old code (1.1 but maybe it' still relevant...

llviewermessage.cpp has two functions of interest to intercepting text chat:

process_chat_from_simulator
process_improved_im

I added one line to each to pass me the message and the is_owned_by_me flag.

That's pretty much what my code does if you look at it (first file in the patch), though I compared to a regex right there instead of generalizing that part. It could easily be turned into a general registry of chat processors. Chain of Responsibility or some such pattern.

thanks for replies, guys. yea i ended up modifying stuff in llviewermessage.cpp file.