[sldev] [HELP] Using message system to get object properties

[Lockwood, Nick]

Thanks for the response! I finally got it to work... I totally missed the callback function (obviously I didn't know much about the messaging system). You were right. All it took was adding a line to the processObjectPropertiesFamily function to capture that data.

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The response message is ObjectProperties.  Search the source for _PREHASH_ObjectProperties and you see where a callback is set using LLMessageSystem::setHandlerFuncFast.  It's LLSelectMgr::processObjectProperties.
You can either add a line in there to call your other function, or look into something like the patch here that would allow you to register multiple handlers: http://jira.secondlife.com/browse/VWR-2546

But, if you only want the object name, RequestObjectPropertiesFamily and its reply ObjectPropertiesFamily are cooler because you won't have to deselect the object!
On Mon, Nov 30, 2009 at 10:37 AM, Lockwood, Nick <nlockwoo at indiana.edu<mailto:nlockwoo at indiana.edu>> wrote:
I'm writing some (fairly simple) custom code to log what object is at a particular position on the screen every x seconds. I can successfully get an object and output it's Id, number of faces, etc. But, here is my problem...

I really want to log the name of the object. Looking at the code, it seems that this requires sending a message request to the server. I've been trying to utilize some of the code in the LLSelectMgr class, specifically in the selectObjectOnly() function. I can't seem to get it to work, and I don't really want to use LLSelectMgr. I want my code to be completely separate from other core aspects of the viewer. So, how would I go about using the messenger? I guess where I'm getting confused is where it runs gMessageSystem->sendReliable( regionp->getHost());.Where is the response message to that stored?

Any help would be greatly appreciated. Thanks!

Nick

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