GEOS SDK TechDocs
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5.6 Scrolling Views
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5.8 Geometry Manager
Many applications will need to create objects that draw themselves and interact directly with the user. Rather than forcing the programmer to create each of his objects from scratch, GEOS offers several visible object classes that already understand several system services and constructs. When an application needs a visible object, it simply defines a subclass of one of these visible classes, thus ensuring that his object will handle all the UI messages that may be sent to it.
GEOS SDK TechDocs
|
| 5.6 Scrolling Views
| 5.8 Geometry Manager