A method and apparatus for defining customizable pick, hit or find detection criteria for geometric types and using the results of the search as a basis for determining whether to perform an action. According to the inventive method, a search protocol is defined for geometric types. The search criteria...http://www.google.es/patents/US5479589?utm_source=gb-gplus-sharePatente US5479589 - Object-oriented system for selecting a graphic image on a display
Object-oriented system for selecting a graphic image on a display