[PrO.GameR]

This isn't anything new, It's been used for a long time and indeed thats the way to prevent it, although players can still have an open dialog, hide it, and spoof another one (as far as I remember if they knew the ID they could open it and fake the data)
They can also change the inputtext, hence messing with codes that use that data directly.
Your code just fixes the dumb way to abuse this cheat.

I'll just cut the code I have for this and make it a plug and play plugin for people that are struggling with it.