w.top_level_parent() raises an exception when w is a "list item" of the Windows start menu

Expected Behavior

w.top_level_parent() should not raise a exception when w is a “list item” of the Windows start menu (Like “Google Chrome” or “Notepad++”)

Maybe the exception is raised because “semantic zoom” is not a control type known by Pywinauto? See the screenshot of inspect.exe in this link

Actual Behavior

Traceback (most recent call last):
  File "C:\Users\d_pra\PycharmProjects\pywinauto_recorder\pywinauto_recorder\recorder.py", line 270, in get_wrapper_path
    wrapper_top_level_parent = wrapper.top_level_parent()
  File "D:\Python\lib\site-packages\pywinauto\base_wrapper.py", line 439, in top_level_parent
    return self.parent().top_level_parent()
  File "D:\Python\lib\site-packages\pywinauto\base_wrapper.py", line 439, in top_level_parent
    return self.parent().top_level_parent()
  File "D:\Python\lib\site-packages\pywinauto\base_wrapper.py", line 433, in top_level_parent
    parent = self.parent()
  File "D:\Python\lib\site-packages\pywinauto\base_wrapper.py", line 409, in parent
    return self.backend.generic_wrapper_class(parent_elem)
  File "D:\Python\lib\site-packages\pywinauto\controls\uiawrapper.py", line 186, in __new__
    return super(UIAWrapper, cls)._create_wrapper(cls, element_info, UIAWrapper)
  File "D:\Python\lib\site-packages\pywinauto\base_wrapper.py", line 126, in _create_wrapper
    new_class = cls_spec.find_wrapper(element_info)
  File "D:\Python\lib\site-packages\pywinauto\controls\uiawrapper.py", line 159, in find_wrapper
    if element.control_type in UiaMeta.control_type_to_cls:
  File "D:\Python\lib\site-packages\pywinauto\uia_element_info.py", line 250, in control_type
    return self._get_control_type()
  File "D:\Python\lib\site-packages\pywinauto\uia_element_info.py", line 112, in _get_current_control_type
    return IUIA().known_control_type_ids[self._element.CurrentControlType]
KeyError: 50039

Steps to Reproduce the Problem

In the following code, top_level_parent() raises an exception if the mouse cursor is over a “list item” of the Windows start menu (Like “Google Chrome” or “Notepad++”)

Short Example of Code to Demonstrate the Problem

x, y = win32api.GetCursorPos()
element_from_point = pywinauto.uia_defines.IUIA().iuia.ElementFromPoint(tagPOINT(x, y))
element_info = pywinauto.uia_element_info.UIAElementInfo(element_from_point)
wrapper = pywinauto.controls.uiawrapper.UIAWrapper(element_info)
wrapper_top_level_parent = wrapper.top_level_parent()

Specifications

• Pywinauto version: 0.6.8
• Python version and bitness: 2.7 64bit
• Platform and OS: win 10

[beuaaa]

@airelil, I deleted Lib\site-packages\comtypes\gen and regenerated it running python -m “pywinauto” and now I have SemanticZoom and AppBar in self._control_types!

Maybe when I first started Pywinauto in this env , it was on Windows 7, it generated Lib\site-packages\comtypes\gen without SemanticZoom and AppBar.

Thank you very much for your help!

[airelil]

@beuaaa , you can try to re-generate the COM interfaces in comtypes package. Typically, it means locating your Python comtypes installation and deleting the contents of gen folder. Since I work with conda environments I have several installations of comtypes and Python. For example, the comtypes for Python 3.7 environment on my machine is located under: C:\Users\XXXX\Miniconda3\envs\py37\Lib\site-packages\comtypes\gen Once the content of this folder is deleted, running python -m "pywinauto" would be enough to re-generate the files. You can also explore the files (but don’t change!) The SemantiZoom definitions can be found in _944DE083_8FB8_45CF_BCB7_C477ACB2F897_0_1_0.py That’s the list of files on my machine: