I have an question about how to setup the app flag correct for this needs.

1) Disable mouse when current window is not in focus.
2) Make the render work in background.

Only thing I can find is.

App.flag=APP_WORK_IN_BACKGROUND;

But it will still send mouse commands when window is not in focus / outside the render window.

Thanks.

Is it possible to get the window acting like this? Running in background and no mouse events are sent if the window are not in focus.

in that case you need to ignore mouse when !App.active()