Error on show_hids.py about pywinusb HOT 7 CLOSED

Thanks for the report, is this from latest repo right? (as opposed to downloading PyPi snapshot

from pywinusb.

The hint so far is 2.7.9 ctypes might be enforcing DWORD types when calling, I'll test on my Win7/64 machine next week with forced DWORD types on the DIGCF class.

from pywinusb.

Hi René,
Many thanks for your prompt reply. It should be the latest repository:

C:\Downloads\pywinusb-0.3.3\pywinusb-0.3.3\examples>pip show ctypes
---
Name: ctypes
Version: 1.0.2
Location: c:\python27\lib\site-packages\ctypes-1.0.2-py2.7-win32.egg
Requires:

C:\Downloads\pywinusb-0.3.3\pywinusb-0.3.3\examples>pip show pywinusb
---
Name: pywinusb
Version: 0.3.3
Location: c:\python27\lib\site-packages\pywinusb-0.3.3-py2.7.egg
Requires:

C:\Downloads\pywinusb-0.3.3\pywinusb-0.3.3\examples>

Many thanks for the hint... I tried to change the types of the DIGF class (something like

DEFAULT         = DWORD(0x00000001))

but now I have this other error

File "C:\Python27\lib\site-packages\pywinusb\hid\winapi.py", line 439, in open
    (DIGCF.PRESENT | DIGCF.DEVICEINTERFACE) )
TypeError: unsupported operand type(s) for |: 'c_ulong' and 'c_ulong'

I also tried to do this change on the call (lines 438-439):

self.h_info = SetupDiGetClassDevs(byref(self.guid), None, None,
                DWORD((DIGCF.PRESENT | DIGCF.DEVICEINTERFACE)) )

but now I have again the original error

  File "C:\Python27\lib\site-packages\pywinusb\hid\winapi.py", line 439, in open
    DWORD((DIGCF.PRESENT | DIGCF.DEVICEINTERFACE)) )
ctypes.ArgumentError: argument 3: <type 'exceptions.TypeError'>: wrong type

I've the feeling that you would have tried something different...

from pywinusb.

Hi René,
were you able to figure out any change I could try? Many thanks

from pywinusb.

I have python 3.4 on github, but I can see 3.3 is on PyPi, so you are actually no using latest.

I'll update PyPi.

from pywinusb.

The issue can't be reproduced with latest code (0.3.4)

from pywinusb.

Tested both Python 2.7.9 x64 and 32 bits with pyWinUsb 0.3.5

from pywinusb.