Hi.
I am using comtypes to interact with DirectShow an have one question about:
What I´m doing wrong to get this error message?
Fragment of code:
(...)
if_baseFilter =
filtro_fs.QueryInterface(comtypes.gen.DirectShowLib.IBaseFilter)
enum = if_baseFilter.EnumPins()
print enum
pin, npi = enum.Next(1)
print pin
pin.QueryId()
(...)
Output:
<POINTER(IEnumPins) object 146b800>
<POINTER(IPin) object 146b6c0>
Traceback (most recent call last):
File "prueba.py", line 64, in ?
pin.QueryId()
ValueError: NULL COM pointer access
Thanks in advance
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