Element not found due to Window Title being missing

How can I use recorder capture to get text or set text in a window element where the window does not have any title?
I have a desktop application where I need to enter text as input or fetch text as output, but I’m unable to do any of the task that involves a window title.
I’ve tried all possible object properties (Parent, Class Name, ID etc.) and even used anchor - none of these seem to work.
Keyboard shortcuts may work, but those are less reliable as in that case I won’t be able to validate if required checkbox is selected or if the text in entered in desired textbox.
Any suggestion?