Improve error messages when converting an incompatible type to :class:`ctypes.c_char_p`, :class:`ctypes.c_wchar_p` and :class:`ctypes.c_void_p`.
Improve error messages when converting an incompatible type to :class:`ctypes.c_char_p`, :class:`ctypes.c_wchar_p` and :class:`ctypes.c_void_p`.