Using Qt5-controls in AutoIT script

Good day) Maybe worth asking this question on another forum, but suddenly someone ran into this problem. I write scripts for application to Qt on AutoIT - came across such a problem - I can not use in the script window controls - just do not know how) The window I use after obtaining the window handle through its title, using the buttons / textbox, etc. - I do not know. No Spy ++, or other tools do not provide the right of information (or am I wrong?) I can get, for example, in the Old button of his room as a child of the window. In this list of children windows - empty) that prompt?)