[ns]Tcl variable name from C++

["Mark Butler" <mark_wibble@hotmail.com>]

There is a way to lookup an object if you know the name that Tcl gives it 
using TclObject::lookup(_o121). But is there a way of getting the actual 
variable name from this ?

As an example if I have

set node1 [$ns node]

then $node1 is of the form _o121 or similar. Can I get, from C++, the fact 
that it is called 'node1'.

This may sound a strange thing to want to do, but I would like to get some 
information back regarding the number of the node which has received a 
packet so that I can display 'Node 3 receives a packet' within the Nam 
simulation. But all I can get at the moment is 'Node _o121 receives a 
packet'.

Thanks,

Mark
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