打印Windows商店应用控件标识符遇_ctypes.COMError，求解决方案

应用环境 #

Windows商店应用（基于React Native + WebView开发）

代码实现 #

app = Application(backend='uia').start(
    r"powershell.exe /c start AppName",
    create_new_console=True,
    wait_for_idle=False)
app = Application(backend='uia').connect(title_re=".*App Title*.", found_index=0, timeout=10).AppName

print(app.print_control_identifiers())

输出内容及错误信息 #

部分控件标识符输出 #

| ComboBox - 'Test'    (L2771, T247, R2871, B268)
   |    |    |    |    |    |    |    |    |    | ['ComboBox', 'test', 'testComboBox', 'ComboBox0', 'ComboBox1']
   |    |    |    |    |    |    |    |    |    | child_window(title="Test", control_type="ComboBox")
   |    |    |    |    |    |    |    |    |    | 
   |    |    |    |    |    |    |    |    |    | ComboBox - 'testing'    (L2875, T247, R2975, B268)
   |    |    |    |    |    |    |    |    |    | ['testing', 'ComboBox2', 'TestingComboBox']
   |    |    |    |    |    |    |    |    |    | child_window(title="tesing", control_type="ComboBox")
   |    |    |    |    |    |    |    |    |    | 
   |    |    |    |    |    |    |    |    |    | Static - '('    (L2978, T251, R2981, B264)
   |    |    |    |    |    |    |    |    |    | ['(Static', '(', 'Static56']
   |    |    |    |    |    |    |    |    |    | child_window(title="(", control_type="Text")

错误栈 #

Traceback (most recent call last):
  File "foo\boo\test.py", line 96, in <module>
    print(test.getcontrolidentifiers())
  File "foo\boo\test.py", line 57, in getcontrolidentifiers
    return self.app.print_control_identifiers()
  File "foo\boo\\application.py", line 689, in print_control_identifiers
    print_identifiers([this_ctrl, ])
  File "foo\boo\\application.py", line 685, in print_identifiers
    print_identifiers(ctrl.children(), current_depth + 1, log_func)
  File "foo\boo\\application.py", line 685, in print_identifiers
    print_identifiers(ctrl.children(), current_depth + 1, log_func)
  File "foo\boo\\application.py", line 685, in print_identifiers
    print_identifiers(ctrl.children(), current_depth + 1, log_func)
  [Previous line repeated 7 more times]
  File "foo\boo\\application.py", line 641, in print_identifiers
    ctrl_id = all_ctrls.index(ctrl)
  File "foo\boo\\base_wrapper.py", line 662, in __eq__
    return self.element_info == other.element_info
  File "foo\boo\\uia_element_info.py", line 360, in __eq__
    return bool(IUIA().iuia.CompareElements(self.element, other.element))
_ctypes.COMError: (-2147220991, '无法调用任何订阅者的事件', (None, None, None, 0, None))

运行上述代码时，程序在打印控件标识符过程中抛出了_ctypes.COMError，错误代码为-2147220991，提示信息为“无法调用任何订阅者的事件”，目前不清楚问题根源和解决方法，恳请各位帮忙。

内容的提问来源于stack exchange，提问作者Learner