While on a quest to learn more about BWidgets adn the list box, there seemed to be a lot of good examples of how to do Drag & Drop within Lables and Entry fields - but nothing was obvious for the ListBox widget - until now.

This was a response by Bob Techentin on Aug 9, 2005 in the clt newsgroup that solved this mystery.  Thanks Bob!

{{{
package require BWidget 
grid [ListBox .listbox1 -dragenabled 1 -dragevent 3] 
grid [ListBox .listbox2 -dropenabled 1 -dragevent 3] 
foreach item {one two three} {.listbox1 insert end $item -text $item} 
.listbox2 configure -dropcmd dropLB 
proc dropLB {listbox dragsource itemList operation datatype data} { 
    $listbox insert end $data -text $data 



} 
}}}