Anyway to do BDO background key press?

[ic1003]

Is there any function that I could hook to make a background key input?
it seems that BDO has a post manager that prevents input when game is running in background,
really apperciate if someone could give some info about it.
@ senpai could you give me some hint about it? the function i found only works when game run in front, doesnt work when game run minimized. not sure if i m on right track.