Thomas Heller <thel...@...> writes:
>
> Anyway, you should NOT use 'cast' with COM object pointers. Last,
> but not least, 'cast' doesn't handle the COM reference count correctly.
>
> Please use 'QueryInterface' with them, like so:
>
> block = obj.QueryInterface(ACAD.IAcadBlockReference)
>
Thanks Thomas. I'm getting an error using QueryInterface.
> "C:\Python25\pythonw.exe" "C:\Python25\codes\autocad\temp\cast_test.py"
Traceback (most recent call last):
File "C:\Python25\codes\autocad\temp\cast_test.py", line 9, in <module>
block = obj.QueryInterface(ACAD.IAcadBlockReference)
File "C:\Python25\Lib\site-packages\comtypes\__init__.py", line 1069, in
QueryInterface
self.__com_QueryInterface(byref(iid), byref(p))
_ctypes.COMError: (-2147467262, 'No such interface supported', (None, None,
None, 0, None))
This is what I got from shell:
>>> import comtypes.gen.AutoCAD as ACAD
>>> ACAD.IAcadBlockReference
<class
'comtypes.gen._851A4561_F4EC_4631_9B0C_E7DC407512C9_0_1_0.IAcadBlockReference'>
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