class_docstr: Instances of this class are delivered to items in a :class:`GraphicsScene <pyqtgraph.GraphicsScene>` via their mouseDragEvent() method when the item is being mouse-dragged. 
docstr: Return the screen position of the mouse immediately prior to this event.
docstr_tok: ["Return","the","screen","position","of","the","mouse","immediately","prior","to","this","event","."]
code: def lastScreenPos(self):
      """
      Return the screen position of the mouse immediately prior to this event.
      """
      return Point(self._lastScreenPos)
  
imports: import weakref
  from time import perf_counter
  from ..Point import Point
  from ..Qt import QtCore
label_desc: Use image node_id 10 for calling the MouseDragEvent obj's underlying member method code with example usage: obj.lastScreenPos() and returns: Point