my purpose is to get a frame data from a fighting game that has no input display feature in its training mode.
Start menu > “Set up USB Game controllers” and then go to Properties of the controller you’re using.
Game controller properties only shows when it is the active window. What is wanted here is a mame-rr style onscreen input display to show what keys are being pressed alongside a game being played.
=This is not an endorsement, just the results of a quick search=
http://chechepon.tripod.com/test/padlight.html This purports to do what you want.
Have not used it, but [this thread](Button Masher is a windows tool to help you analyze and improve your execution sounds like what you’re looking for.