Why is "fOnMouseMove: MouseMoveProc" commented out?
I want to detect mouse movement.
Therefore, I would like to use the function of `fOnMouseMove: MouseMoveProc`, but it was commented out when I saw the code.

https://github.com/trustable-code/NiGui/blob/master/src/nigui.nim#L279

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Can't I use this?

Thank you