Defines a client for the class bDragDropManager.
The class defines a client for the class bDragDropManager. It defines all properties which are necessary for the administration of a drag & drop process. Administration for the drag & drop process is carried out by the bDragDropManager.
So that an object of the class bDragDropClient can take part of a drag & drop process it must be registered with the method bDragDropManager:RegisterClient() by an object of the class bDragDropManager.