在python ctypes中，“ c_ubyte”存在，但“ c_ubyte_p”不存在

Question

The problem has been bothering me for a few days. I use python call dll Dynamic link library. This is C++ callback function：

typedef void(CALLBACK *fRealDataCallBack)(
  LONG      lRealHandle,
  DWORD     dwDataType,
  BYTE      *pBuffer,
  DWORD     dwBufSize,
  DWORD     dwUser
);

I redefined it in python like this:

def realdatacallback(lRealHandle, dwDataType, fBuffer, dwBufSize, pUser):
    print("hi")

pRealDataInfoFv = CFUNCTYPE(c_long, c_int, c_char_p, c_int, c_void_p)
pRealDataInfoHandle = pRealDataInfoFv(realdatacallback)

There is something wrong with the code.Please look at the third parameter: BYTE *pBuffer. In ctypes, "c_ubyte" existences, but "c_ubyte_p" does not exist. How can I fix this? Finally， I have to say that I'm not good at English.

Answer 1

在ctypes中，您可以使用POINTER（c_ubyte）