Simen has brought up the fact that the dTreeView control doesn't
wrap all of the wxPython events. One in particular is
wx.EVT_TREE_ITEM_ACTIVATED, which is fired when the user double-
clicks on a node, or presses Enter from the keyboard.
We went through a similar discussion with list-based controls: do we
fire "Hit" when a node is selected, or when it is activated?
Currently the tree mirrors the list controls: merely clicking on an
item, even if it is already selected, fires the Hit event; if the
selection is now different, the TreeSelection event also fires. If we
leave this behavior like this, what event should we raise when the
user double-clicks or presses Enter on a tree node?
-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com
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