Descriptors and exit routines

Using descriptors and exit routines, you can assign characteristics to ETO dynamic terminals and assign user structures to be associated with those terminals.

A descriptor provides the basic information for the dynamic terminal. An exit routine completes or changes this information. Two methods of using descriptors and exit routines are:
  • You can use many descriptors and code little or no processing logic in exit routines.
  • You can use few descriptors and code exit routines to perform much of the processing.