docs: def makeWidget(self, qscreen: QtGui.QScreen):
          # (re)create the widget, do the same for children
          # how children are placed on the parent widget, depends on the subclass
          self.window = self.ContainerWindow(
              self.signals, self.title, self.parent)
  
          # send to correct x-screen
          self.window.show()
          self.window.windowHandle().setScreen(qscreen)
          self.n_xscreen = self.gpu_handler.getXScreenNum(qscreen) # the correct x-screen number must be passed upstream, to the VideoContainer
  
          # continue window / widget construction in the correct x screen
          self.main_widget = self.ContainerWidget(self.window)
          self.main_layout = QtWidgets.QVBoxLayout(self.main_widget)
          self.window.setCentralWidget(self.main_widget)
  
          # add here any extra turf to the widget you want in addition to the
          # grid
  
          # create the grid
          self.grid_widget = self.GridWidget(self.main_widget)
          self.main_layout.addWidget(self.grid_widget)
  
          self.grid_layout = QtWidgets.QGridLayout(self.grid_widget)
          self.grid_layout.setHorizontalSpacing(2)
          self.grid_layout.setVerticalSpacing(2)
          # ( int left, int top, int right, int bottom )
          self.grid_layout.setContentsMargins(0, 0, 0, 0)
  
          class ScreenMenu(QuickMenu):
              title = "Change Screen"
              elements = [
                  QuickMenuElement(title="Screen 1"),
                  QuickMenuElement(title="Screen 2")
              ]
              
          """ TODO: activate after gpu-hopping has been debugged
          self.screenmenu = ScreenMenu(self.window)
          self.screenmenu.screen_1.triggered.connect(self.test_slot)
          self.screenmenu.screen_2.triggered.connect(self.test_slot)
          """
  
          if (len(self.gpu_handler.true_screens) > 1):
              # so, there's more than a single x screen: create a button for
              # changing x-screens
              self.button = QtWidgets.QPushButton(
                  "Change Screen", self.main_widget)
              self.main_layout.addWidget(self.button)
              self.button.setSizePolicy(
                  QtWidgets.QSizePolicy.Minimum,
                  QtWidgets.QSizePolicy.Minimum)
              self.button.clicked.connect(self.change_xscreen_slot)
  
          self.placeChildren()