+---------------+-----------------------+-----------+
    |ctypes' type   |C type                 |Python type|
    +===============+=======================+===========+
    |``c_char``     |``char``               |character  |
    +---------------+-----------------------+-----------+
    |``c_byte``     |``char``               |integer    |
    +---------------+-----------------------+-----------+
    |``c_ubyte``    |``unsigned char``      |integer    |
    +---------------+-----------------------+-----------+
    |``c_short``    |``short``              |integer    |
    +---------------+-----------------------+-----------+
    |``c_ushort``   |``unsigned short``     |integer    |
    +---------------+-----------------------+-----------+
    |``c_int``      |``int``                |integer    |
    +---------------+-----------------------+-----------+
    |``c_uint``     |``unsigned int``       |integer    |
    +---------------+-----------------------+-----------+
    |``c_long``     |``long``               |integer    |
    +---------------+-----------------------+-----------+
    |``c_ulong``    |``unsigned long``      |long       |
    +---------------+-----------------------+-----------+
    |``c_longlong`` |``__int64`` or         |long       |
    |               |``long long``          |           |
    +---------------+-----------------------+-----------+
    |``c_ulonglong``|``unsigned __int64`` or|long       |
    |               |``unsigned long long`` |           |
    +---------------+-----------------------+-----------+
    |``c_float``    |``float``              |float      |
    +---------------+-----------------------+-----------+
    |``c_double``   |``double``             |float      |
    +---------------+-----------------------+-----------+
    |``c_char_p``   |``char *``             |string or  |
    |               |(NUL terminated)       |``None``   |
    +---------------+-----------------------+-----------+
    |``c_wchar_p``  |``wchar_t *``          |unicode or |
    |               |(NUL terminated)       |``None``   |
    +---------------+-----------------------+-----------+
    |``c_void_p``   |``void *``             |integer or |
    |               |                       |``None``   |
    +---------------+-----------------------+-----------+