About Systems, Drivers, and Interfaces

This chapter contains the following topics:

Topic	Description
Overview of System, Drivers, and Interfaces	Overview and definitions of System, Drivers, and Interfaces.
Creating a System	Steps necessary to create a System file.
The System Module	Description of the System Module, with some treatment of Driver Shortcuts.
The System Shortcut	Differentiation of the System Shortcut from the System itself.
System Properties	Property pages for the System, including General, Sharing, and Information pages.
Inserting an Existing System Into a Project	Steps for inserting an existing System into a Project.
Creating a Driver	Steps necessary to create a Driver file.
The Driver Module	Description of the Driver Module, with notes on Driver portability.
Driver Properties	Property pages for the Driver, including General, Information, Interfaces, I/O Tables, Models, Parameters, and Sharing
The Driver Shortcut	Differentiation of the Driver Shortcut from the Driver itself.
Driver Shortcut Properties	Property pages for the Driver Shortcut, including General, Interfaces, and Miscellaneous.
Setting the Driver-Supported Interfaces	Choosing an interface type from the range of possible interfaces enabled in the Driver Shortcut Properties.
Using Driver Parameters	Setting and referencing Parameters, which are constants set in the Parameters tab of Driver Shortcuts.
Inserting an Existing Driver into a System	Steps for inserting an existing Driver into a System.
System and Driver Variables Life Cycle	Persistence of System and Driver variables after end of Program execution.
System and Driver Events	Events common to System and Driver, along with an extra pair of events specific to the System.
System and Driver Submodules	The core set of submodules for Systems, Drivers, and Programs, with exceptions.
System and Driver Scope Rules	How System and Driver variable names that are not fully qualified are resolved.
OnInterface Event	How a change in condition in a driver interface can trigger an OnInterface Event.
Using Driver and System Public Members	How the "Public" property allows variables and members of one Driver or System to be visible from other modules.
Using Driver and System Commands	Differences between Driver and System Commands.
Adding and Configuring Interfaces	Enabling or disabling multiple interfaces from the Interfaces tab of Driver Shortcut Properties.
Adding and Configuring Interfaces (Options Tab)	Loading interface drivers for interfaces that are not built into ATEasy.