# Backend Internal Implementation modules * [pywinauto.backend](https://pywinauto.readthedocs.io/en/latest/code/pywinauto.backend.html) * [pywinauto.element\_info](https://pywinauto.readthedocs.io/en/latest/code/pywinauto.element_info.html) * [pywinauto.win32\_element\_info](https://pywinauto.readthedocs.io/en/latest/code/pywinauto.win32_element_info.html) * [pywinauto.uia\_element\_info](https://pywinauto.readthedocs.io/en/latest/code/pywinauto.uia_element_info.html) * [pywinauto.uia\_defines](https://pywinauto.readthedocs.io/en/latest/code/pywinauto.uia_defines.html)