def __init__(self, parent):
super(ScreenShotWindow, self).__init__()
self.parent = parent
self.setMouseTracking(True)
self.setWindowFlags(self.windowFlags() | QtCore.Qt.FramelessWindowHint
| QtCore.Qt.WindowStaysOnTopHint)
self.showFullScreen()
self.setWindowOpacity(0.5)
self.rubberband = RubberBand()
