python - dll access (ctypes or swig)
larry.bates at websafe.com
Tue Apr 17 23:43:19 CEST 2007
Daniel Watrous wrote:
> I am interested in using python to script access to some hardware for
> which there are existing drivers in the form of DLLs. The DLLs each
> have four exported functions and a host of COM Properties and COM
> Methods. The four exported functions are as follows:
> The COM methods and properties all begin with I, followed by a unique name.
> I am able to load the DLL using ctypes and it can access the exported
> functions, but I'm not sure how to access the COM methods and
> properties. I have read that ctypes once had support for COM but that
> it has since been separated into its own project. I couldn't find any
> information about how these work together.
> All help is appreciated. THANKS in advance...
I recently learned that you can ship COM as either an .EXE or a .DLL (nobody
has yet let me know why). You don't have a traditional .DLL that you would
use ctypes to call methods in, you have a COM .DLL. COM methods need to be
access with Win32com
You need to find out the COM dispatch typelib name and make sure the DLL is
registered (regsvr32 your.dll).
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