Tip - Some methods for attaining a flicker free window.
Details - Flickering can be said as a sensation we get when one see an image briefly before another one is shown on top. The main cause of this behavior can be the unwanted drawing the windows are performing. When it comes to users, this can be very annoying. There are many methods by which we can avoid this unwanted drawing. See the link below, which describes some of the cause of flicker and the cure for it to attain a flicker free window.
Posted by - Sreejith SR