wxPython GenericDirCtrl events

[Iain King]

I can't get these to work, and I can't work out what I'm doing wrong.
I added the following lines to the GenericDirCtrl.py demo in the
wxython demos folder:

at the end  TestPanel.__init__ I added:

self.Bind(wx.EVT_TREE_SEL_CHANGED, self.test, dir1)

and also added a test def to the class:

def test(self, evt):
    print "Hit"

When I run it I never get a hit.  How should I be doing this?

Iain

-----------
source:
-----------

import  wx

#----------------------------------------------------------------------

class TestPanel(wx.Panel):
    def __init__(self, parent, log):
        wx.Panel.__init__(self, parent, -1)
        self.log = log

        txt1 = wx.StaticText(self, -1, "style=0")
        dir1 = wx.GenericDirCtrl(self, -1, size=(200,225), style=0)

        txt2 = wx.StaticText(self, -1, "wx.DIRCTRL_DIR_ONLY")
        dir2 = wx.GenericDirCtrl(self, -1, size=(200,225),
style=wx.DIRCTRL_DIR_ONLY)

        txt3 = wx.StaticText(self, -1, "wx.DIRCTRL_SHOW_FILTERS")
        dir3 = wx.GenericDirCtrl(self, -1, size=(200,225),
style=wx.DIRCTRL_SHOW_FILTERS,
                                filter="All files (*.*)|*.*|Python
files (*.py)|*.py")

        sz = wx.FlexGridSizer(cols=3, hgap=5, vgap=5)
        sz.Add((35, 35))  # some space above
        sz.Add((35, 35))
        sz.Add((35, 35))

        sz.Add(txt1)
        sz.Add(txt2)
        sz.Add(txt3)

        sz.Add(dir1, 0, wx.EXPAND)
        sz.Add(dir2, 0, wx.EXPAND)
        sz.Add(dir3, 0, wx.EXPAND)

        sz.Add((35,35))  # some space below

        sz.AddGrowableRow(2)
        sz.AddGrowableCol(0)
        sz.AddGrowableCol(1)
        sz.AddGrowableCol(2)

        self.SetSizer(sz)
        self.SetAutoLayout(True)

        self.Bind(wx.EVT_TREE_SEL_CHANGED, self.test, dir1)

    def test(self, evt):
        print "Hit"


#----------------------------------------------------------------------

def runTest(frame, nb, log):
    win = TestPanel(nb, log)
    return win

#----------------------------------------------------------------------


overview = """\
This control can be used to place a directory listing (with optional
files)
on an arbitrary window. The control contains a TreeCtrl window
representing
the directory hierarchy, and optionally, a Choice window containing a
list
of filters.

The filters work in the same manner as in FileDialog.

"""


if __name__ == '__main__':
    import sys,os
    import run
    run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])