[python-win32] IE browser bar

[Richard Bell]

I'm trying to debug code for a class to automate IE and am having difficulty
with ShowBrowserBar.  I've looked on the Web and found a couple of examples
that suggest this should work:

--- begin code ---
def spin(t):
    t0 = time.clock()
    while time.clock()-t0 < t: pass

time.clock()    
ie=win32com.client.Dispatch('internetexplorer.application')
ie.Visible=1
ie.Navigate('www.google.com')
spin(3)
CLSID_SEARCH =      "{30D02401-6A81-11D0-8274-00C04FD5AE38}"
CLSID_FAVORITES =   "{EFA24E61-B078-11D0-89E4-00C04FC9E26E}"
CLSID_HISTORY =     "{EFA24E62-B078-11D0-89E4-00C04FC9E26E}"
CLSID_CHANNELS =    "{EFA24E63-B078-11D0-89E4-00C04FC9E26E}"
CLSID_FOLDERS =     "{EFA24E64-B078-11d0-89E4-00C04FC9E26E}"
CLSID_xxx         = '{32683183-48a0-441b-a342-7c2a440a9478}'
CLSID_02          = '{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}'

bar = CLSID_02

print 'true', bar
ie.ShowBrowserBar(bar,True,0)
spin(3)
print 'false', bar
ie.ShowBrowserBar(bar,False,0)
spin(3)

--- end code ---

On my machine with IE7 it does not.  Testing with my class yields a COM
error:

test0039_Y_ShowBrowserBar (__main__.TestYamie1) ... Yamie COM error
     Y_ShowBrowserBar error
     Failed with code -2147352567: Exception occurred.
     Argument 3
     The source of the error is None
     The error message is None
     More info can be found in None (id=0)

Where the underlying code looks like this:

     self.ShowBrowserBar(vClsID, bShow, vSize)

The problem occurs independent of the browser bar class ID.

Does anyone have any insight/experience/suggestions/advice?

Thanks.

Richard