typedef void __fastcall (__closure *TDragOverEvent3D)(System::TObject* Sender, const Fmx::Types::TDragObject &Data, const System::Math::Vectors::TPoint3D &Point, Fmx::Types::TDragOperation &Operation);
Procedural type used by all OnDragOver events.
Sender is the object that issues the event call.
Data is the object that is being dragged.
Point is the position in space of the mouse pointer while dragging the object.
Accept specifies whether the control that you are about to drop onto accepts the dragged object.