Testing python dll files loading

read_dll.py

import time
from ctypes import *

bnt = WinDLL('./BNT36.dll')

bnt.OpenBNT.argtypes = [c_char_p, c_ushort]
bnt.OpenBNT.restype = c_bool

IP = c_char_p(b"192.168.1.4")
PORT = c_ushort(11111)

is_open = bnt.OpenBNT(IP, PORT)

print("IS OPEN {}".format(is_open))

if is_open:
    channels = [1, 10, 19, 20]

    arr = (c_char * len(channels))()

    for i in range(len(channels)):
        arr[i] = channels[i]

    bnt.ProgramChannels.restype = c_int
    n_channels = bnt.ProgramChannels(arr)

    if n_channels > 0:
        bnt.StartRealAcq.restype = c_bool
        bnt.StartCalibAcq = c_bool
        started = bnt.StartRealAcq(200, 2, 1, True)
        print("STARTED: {}".format(started))

        a = c_ubyte()

        ie_status = c_ubyte()
        n_samples = c_int64()
        i_last = c_int64()

        n_samples_got = c_int()
        short_buffer = (c_short * 4096)()
        bufsize = 8192

        bnt.GetData.argtypes = [
                POINTER(c_ubyte),
                POINTER(c_int64),
                POINTER(c_int64),
                POINTER(c_int),
                POINTER(c_long),
                c_long
        ]
        bnt.GetData.restype = c_bool

        data_buffer = cast(short_buffer, POINTER(c_long))

        time.sleep(2)

        response = bnt.GetData(
            byref(ie_status),
            byref(n_samples),
            byref(i_last),
            byref(n_samples_got),
            data_buffer,
            bufsize
        )

        if response:
            j=(n_samples_got.value-1)*len(channels)
            short_array = (c_short * 4096)
            data = short_array.from_address(addressof(data_buffer))
            data = [d for d in data]
            print("N SAMPLES: {}".format(n_samples.value))
            print("N SAMPLES GOT: {}".format(n_samples_got.value))
            print(data)

    bnt.StopAcquisition()
    bnt.CloseBNT()