So I have a function in vb that is converted to a dll that I want to use in python. However trying to use it, I get an error message

this is the VB function

Function DISPLAYNAME(Name)

MsgBox ("Hello " & Name & "!")

End Function

and this is how I call it in python

from ctypes import *

test = windll.TestDLL

print test

print test.DISPLAYNAME("one")

But I get errors so what is the right way of calling the dll

Traceback (most recent call last):

File "C:\Test\testdll.py", line 4, in

print test.DISPLAYNAME("one")

File "C:\Python26\lib\ctypes\__init__.py", line 366, in __getattr__

func = self.__getitem__(name)

File "C:\Python26\lib\ctypes\__init__.py", line 371, in __getitem__

func = self._FuncPtr((name_or_ordinal, self))

AttributeError: function 'DISPLAYNAME' not found

I have been looking around online but no solution so far. Can't use cdll since this is for c progs.

I have looked at some of the python and dll related questions but no solution so far works for my issue.

解决方案

It might be a scoping issue, with out the Public access modifier, the function may not be visible to external callers. Try

Public Function DISPLAYNAME(Name)

MsgBox ("Hello " & Name & "!")

End Function

in your dll

出处：https://blog.csdn.net/weixin_35726374/article/details/118794333?spm=1001.2101.3001.6650.8&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-8.pc_relevant_default&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-8.pc_relevant_default&utm_relevant_index=17