Unable to obtain operable controls when using Win32 for backend

[wadang]

When I changed the backend to Win32, the program couldn't obtain operable controls within the application. Is it possible that only UIA can be used?

CONTROL_BACKEND: "win32" # The backend for control action, currently we support uia and win32

but，outlook，chrome：

control_list: []
self._annotation_dict: {}
self.filtered_annotation_dict: {}

[vyokky]

Thanks @wadang , we will investigate. Base our experience, win32 does not support well for most of applications. I will suggest to use uia instead.