name of selection object in opengl

[henna]

im using selection to select objects and move them in opengl, environment c++. i use an array to store the objects. now my selection works fine but i need to get the name of the selected object in order to know which object to move.can anyone help plz?

[Elementer]

http://www.cse.ucsc.edu/classes/cmps160/Fall02/picking.txt

http://www.lighthouse3d.com/opengl/picking/

http://www.sulaco.co.za/tut4.htm