[python-win32] Calling a method with SAFEARRAY parameter

[Alessandro Fiorino]

I have to call a method of a COM Object which is defined as
GetTableInfo ([in] BSTR bstrTableName,[in, out]
SAFEARRAY(BSTR)*bstrColumnTitles,[in, out] SAFEARRAY(long)*lColumnPos)

I tried with
            columnTitles = VARIANT(pythoncom.VT_ARRAY | pythoncom.VT_BSTR,
[None])
            columnPos = VARIANT(pythoncom.VT_ARRAY | pythoncom.VT_I4,
[None])
            object.GetTableInfo("TABLENAME", columnTitles, columnPos)
and with
            columnTitles = VARIANT(pythoncom.VT_ARRAY | pythoncom.VT_BSTR,
[""])
            columnPos = VARIANT(pythoncom.VT_ARRAY | pythoncom.VT_I4, [0])
            object.GetTableInfo("TABLENAME", columnTitles, columnPos)

but I get an error:
Object ot type VARIANT has no len()

What I am doing wrong ?

Thanks in advance.
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