send virtual keystroke (F15) during playback to prevent auto afk of some applications (requires Windows powershell)

noAFK.lua

local afkTimer = mp.add_periodic_timer(60, function()
    if mp.get_property("pause") == "no" and mp.get_property("vid") ~= "no" then
        mp.command_native({
            name = "subprocess",
            capture_stdout = false,
            playback_only = false,
            args = { "powershell", "(New-Object -ComObject WScript.Shell).SendKeys('{F15}')" }
        })
    end
end)

local function reset()
    afkTimer:kill()
    afkTimer:resume()
end

mp.observe_property("pause", nil, reset)
mp.register_event("seek", reset)
mp.add_key_binding("MOUSE_MOVE", "", reset)