Predefined actions

Genero predefines some action names for common operations of interactive instructions.

Predefined actions are different from user-defined action, in the sense that the name of a predefined action is reserved, and the action may have an ON ACTION handler, while user-defined actions have a specific name, and must be implemented with an ON ACTION handler.

There are two types of predefined actions:

• Automatic actions: actions that are automatically created and handled by the program dialog, like accept, cancel, insert.
• Special actions: actions with a special usage, that can be invoked asynchronously or automatically by the front-end, like interrupt, dialogtouched.

Default decoration attributes and keyboard shortcuts are defined with action defaults, like for user-defined actions.