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Important concepts introduced in this chapter include the Inventor programming model for event handling and the use of the SoXtRenderArea, a widget that performs rendering and event handling on the Inventor database. In much the same way a window system passes events to its client windows, Inventor passes events to database objects that can handle them. This chapter describes the Open Inventor event model, which provides a simple mechanism for passing events such as a key press or mouse movement to objects in the database for processing. Write selection callback functions to allow the application to perform certain operations when the selection list changes Implement your own selection policy by creating an event callback node

Select objects in the scene using one of Inventor's built-in selection policies Explain how Open Inventor handles input events