events without redraw

Josh Yelon, your solution worked nicely

base.win.setActive(True)
        base.graphicsEngine.renderFrame()
        base.win.setActive(False)

:slight_smile:

ynjh_jo, well see i am using this app to expand my own panda gui library i dont think base.startTk() will help because its all rendered in panda window.

thanks all!