using ctypes to use a dll in a python module

[dauriac]

Hello, working on a windows system and I need to import a dll into a python module. I use ctypes

import ctypes,sys
myLib = ctypes.CDLL("./myDLL.dll")

so far so good but then I want to use a function of the dll. From the .h file
I know there is a function with prototype DWORD ICNC_GetDLLVersion().
I want to call from python, I get

>>> myLib.ICNC_GetDLLVersion()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:/msys64/mingw64/lib/python3.10/ctypes/__init__.py", line 387, in __getattr__
    func = self.__getitem__(name)
  File "C:/msys64/mingw64/lib/python3.10/ctypes/__init__.py", line 392, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'ICNC_GetDLLVersion' not found

but I found

>>> myLib[1]
<_FuncPtr object at 0x00000202951206c0>
>>>

and the same for the many functions of the dll.
How can I find the name of the functions as it is in the .h file ?
Thank you