Writing an OPC client with Python ?

pierlau pl.leroy at free.fr
Fri Mar 3 22:03:31 CET 2006


Larry Bates a écrit :
> 
> pierlau wrote:
> 
>>Hello,
>>
>>I use an OPC server for connection to DC Drive.
>>I would like to write a small OPC client.
>>I have the dll OPCDAAuto.dll which contains all class and method but I 
>>wonder if its possible to instance in python the class that are in the dll ?
>>
>>Thanks for your help .
>>
>>Pierre
>>
>>
>>
> 
> 
> You can call methods/functions in a .dll using ctypes.
> 
> http://starship.python.net/crew/theller/ctypes/
> 
> -Larry Bates

I have tried with ctypes.
I acheived to load the library
it works when I use following instructions :
     print windll.OPCDAAuto or print cdll.OPCDAAuto
(i see an handle number)
But I can't run the functions?
I there a way to 'see' the inside of the dll
(i.e. to list the methods)  ?




More information about the Python-list mailing list