The text is being re displayed at rate of about 2 to 3 time a second.
After the Lua script window is being displayed I was at the Select Departure Airport in the search box and entered many letters than gave a voice command and at that point I could no longer enter any letters because the focus was somewhere else.
My only purpose of using FSUIPC7 is to be able to create a Lua window on the desktop with info from MSFS about aircraft (heading, airspeed, altitude. etc.). everything else is being handled by MSFS.
I was not sure if your wnd window supported keyboard input and that would make a difference how it would be handled.
I hope I have answered your questions and we can find some kind of solution. I did a Twitch stream this morning in VR with MSFS and did do some out of the cockpit flying and was always wondering what my instruments were telling me. Having that info while outside would be so reassuring.
Thanks for your time Bill