pyautogui鼠标滚动PermissionError：[WinError 5]拒绝访问

Question

通过运行此代码

import pyautogui 
import time 

#---------------------------------------------------- 
def mouse_scroll_1(value= 100): 
    pyautogui.vscroll(clicks=value) 
    return 
#---------------------------------------------------- 
def mouse_scroll_2(value= 100): 
    try: 
     pyautogui.vscroll(clicks=value) 
    except: 
     try: 
      pyautogui.vscroll(clicks=value) 
     except: 
      pass 
#---------------------------------------------------- 

if __name__ == '__main__': 
    input('Focus on a windows (faster then 3 sec) and wait, we will focus down') 
    time.sleep(3) 
    mouse_scroll_1(-100) 

我获得以下错误：

Traceback (most recent call last): 
    File "test2.py", line 22, in <module> 
    mouse_scroll_1(-100) 
    File "test2.py", line 6, in mouse_scroll_1 
    pyautogui.vscroll(clicks=value) 
    File "C:\Python35\lib\site-packages\pyautogui\__init__.py", line 582, in vscroll 
    platformModule._vscroll(clicks, x, y) 
    File "C:\Python35\lib\site-packages\pyautogui\_pyautogui_win.py", line 545, in _vscroll 
    return _scroll(clicks, x, y) 
    File "C:\Python35\lib\site-packages\pyautogui\_pyautogui_win.py", line 514, in _scroll 
    _sendMouseEvent(MOUSEEVENTF_WHEEL, x, y, dwData=clicks) 
    File "C:\Python35\lib\site-packages\pyautogui\_pyautogui_win.py", line 480, in _sendMouseEvent 
    raise ctypes.WinError() 
PermissionError: [WinError 5] Access denied. 

我可以运行功能修复错误：mouse_scroll_2（）

有人可以请解释什么可能是错误的原因？

Answer 1

最后我明白了：

import win32api 
import win32con 

def mouse_scroll_3(value= 100): 
     win32api.mouse_event(win32con.MOUSEEVENTF_WHEEL, 0, 0 , value, 0) 
     return 

但没有回答为何与pyautogui失败:-(