key value of linked database object

[iKovacev]

Hi all,

i need a help with lisp routine that gets a key value of linked database object by selecting an autocad object and stores it to some variable

I have a dwg where every object is connected to the external Database over dbConnect link template. Needed is the ID/key value of the connected table.     

Any hint where to start would be more than welcome

Thank you

ivan