Visual LISP, AutoLISP and General Customization

[#1]

Greetings,

I am using (trying to anyway) a :VLR-xrefSubcommandReloadItem reactor.  My only question is how to get the xref/block name from the 'reactor callback data' Object ID.

I am ultimately trying to pass it to (vla-get-xrefdatabase ....), but I cannot figure out how to turn the second parameter from the reactor callback data into something I can use - for example the second parameter returned may be "65" or some other number. 

I hope that makes sense...I'm happy to post what i have if that helps explain any.  And I promise I'm searching for answers before posting.  I am very grateful for any help here.  

[#2 · Accepted solution]

ended up figuring out how to go with the object id - no need for the xref name. 

attached are my resulting reactors to output the number of regapps in an xref when you attach, overlay, or reload the xref (find out how many regapps you just brought into the active dwg).