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using 3rd party dll in python

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I would like to use the Gen3.dll functions from python. I understand that I can use ctypes to load the dll. I have been able to load the dll but cannot make any sense of how to use it once I have it loaded. I have been trying to understand the ctypes tutorial but I just can't wrap my head around it. I have attached a zip file of everything I have about the dll, including the Gen3.dll. Can someone point me in the right direction. My hopes are that I can automate the functions to provide a test program. The Gen3.dll communicates to a piece of hardware over a USB cable. Its mainly for setting voltages and loads and reading results.

posted Jun 26, 2013 by anonymous

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1 Answer

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ctypes basically gives you a way to access a DLL "as if from a C program" (to paraphrase the module name).

You'll have to understand how the DLL entry-points are used to be able to make sense of using it from ctypes. That is, if you can figure out how to use the DLL from VC++ or VB, then you use it the same way with ctypes (just wrap the parameters with ctypes "type" converters)

answer Jun 26, 2013 by anonymous
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I'm new to Python and trying to run a already written code. Can someone please explain the error below? And if possible, how do I resolve this?

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