Building a library with functions with callbacks

[Alex Tweedly]

I'm sure I've done this before, but can't remember where, and can't 
figure out how to do it again.
Sigh :-(      Another CRAFT day :-)

I want to build a library where some of the functions in it have 
parameters which are callbacks;
   agtMyFunction pData, pCallBackMessage

the functions will return immediately, and later when the right 
circumstances exist, the library will send pCallBackMessage to the 
object which called the library.
(i.e. just like the callbacks on the socket library).

How do you find which object *called* the library ?  (not "target()" - 
that's the object that originally received a message - if its script has 
called a handler in, say, the card script and that calls the library, 
then I need to find the card, not the original object)

Thanks

-- 
Alex Tweedly       http://www.tweedly.net



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