Get const array from DLL using ctypes

Question

How can I access a const float array from a DLL? I am currently getting an int out of the DLL using:

DLL = ctypes.cdll.LoadLibrary('some.dll')
x = ctypes.c_int.in_dll(DLL, 'x')

Is there a similar syntax to get out a float array? Note I also know its size. There is no existing function to return that array and I would prefer to not have to create one.

kmaork · Accepted Answer · 2018-02-16 15:10:42Z

2

Try using:

ctypes.ARRAY(ctypes.c_float, array_length).in_dll(DLL, 'x')

Or with a prettier syntax:

(ctypes.c_float * array_length).in_dll(DLL, 'x')

edited Feb 16, 2018 at 15:10

answered Feb 16, 2018 at 15:05

kmaork

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