I don't mean to slap you down, but just for future reference, to make you a better poster on Perlmonks.

It would be nice if you posted this as a Reply Node to the original Node about Listboxes( which you have claimed to solve ). I understand the exhuberance you must feel to find out these solutions, but those things you mention are common knowledge amoung Tk users, and this just appears to me as a wasted node. We have all done this in the past, when we all were beginners, and had to report our findings to the world. (Even though the world already knows the answer).

As far as not being able to find this earlier, groups.google.com is your friend. If you had searched there for example "perl Tk listbox delete" or "perl Tk listbox get selections" you would have found hundreds of examples to do what was needed.