That reminds me of the "Shatter Attack" - which basically involved posting messages to the event-loop/window of a different process: https://en.wikipedia.org/w

That reminds me of the "Shatter Attack" - which basically involved posting messages to the event-loop/window of a different process: https://en.wikipedia.org/wiki/Shatter_attack https://en.wikipedia.org/wiki/Shatter_attack You could do that to call WM_GETTEXT, against an input-control, for example.