- (void)moveThumbAtIndex:(NSUInteger)thumbIndex toOffset:(LeadPointD)point
Index of the thumb to move.
The new position of the thumb.
This method is called when the user clicks and drags one of the thumb objects of this AnnEditDesigner. Derived classes should override this method and provide the necessary functionality to update the coordinates of the object being edited.The default implementation is an empty function.
For more information and an example, refer to Implement User Defined Objects with LEADTOOLS Annotations