Radu Adrian Ciora schrieb:
> Hi,
> I was trying to generate MSWord's commandbar's interface with the following
> code:
>
> def generate_COM_interface(self, fname):
> global number
> def test(self):
> try:
> comtypes.typeinfo.LoadTypeLibEx(fname)
> except WindowsError:
> return comtypes.client.GetModule(fname)
>
>
> and then call it like this:
> l_i_face = self.generate_COM_interface("C:"+os.sep+"Program
> Files"+os.sep+"Common Files"+os.sep+"Microsoft
> Shared"+os.sep+"OFFICE11"+os.sep+"MSO.dll")
>
> but this returns None!
>
> Can anyone tell me where I'm wrong?
It returns None because the except clause does not trigger (LoadTypeLibEx
succeeds),
and there is no explicit 'return' statement executed.
BTW: instead of adding all the strings with os.sep between them you should
better write
generate_COM_interface(r"c:\Program Files\Common Files\Microsoft
Shared\OFFICE11\MSO.dll")
or, even more portable, using the 'CommonProgramFiles' environment variable:
import os
generate_COM_interface(os.path.join(os.environ["CommonProgramFiles"],
r"Microsoft Shared\OFFICE11\MSO.dll"))
But what do you want to achieve?
comtypes.typeinfo.LoadTypeLibEx(fname) returns an ITypeLib pointer which you
probably do not need.
comtypes.client.GetModule(fname) is what you need - it creates the typelib
wrapper
which contains the interface definitions.
The GetModule() call returns the Python module, but it is probably better to
import it with its short name that GetModule() also creates and prints!
For me, the name seems to be comtypes.gen.Office. So I would write:
# Create the typelib wrapper (if it does not yet exist):
GetModule(os.path.join(os.environ["CommonProgramFiles"], r"Microsoft
Shared\OFFICE11\MSO.dll"))
# Import the typelib wrapper
from comtypes.gen import Office
# Use it
print Office.CommandBars, Office.CommandBarControl
You might have to adjust the above code a bit, I don't have OFFICE11 on my
machine,
only OFFICE10.
Thomas
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