function Leadtools.Annotations.Automation.AnnAutomation.deleteSelectedObjects()
An AnnAutomation object can delete one or more AnnObjects if they are currently in edit mode (selected) and these objects are not locked.
Use the CanDeleteObjects property to update the user interface of your application (for example, enabling or disabling an Edit/Delete menu item).
For information on undoing or redoing automation operations, refer to Undoing Annotation Automation Operations.
For an example, refer to SelectObjects.