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Platform Plug-in Developer Guide > Reference > API Reference 

Package Specification

A wizard dialog is a specialized window for walking the end user through a sequence of steps; each step is presented on a separate page.

At the most abstract level, the protocol is given by 3 interfaces:

• IWizard - a wizard consisting of several wizard pages由几个向导页（对话框）组成的向导。
• IWizardPage - an individual wizard page一个特定的向导页。
• IWizardContainer - the outside world from the point of view of a wizard

A wizard is any object implementing IWizard. The abstract base class Wizard is provided as a starting point; it is simpler to subclass Wizard than to implement IWizard from scratch. The main responsibility of a Wizardsubclass is doing the real work when the wizard finishes.

Similarly, a wizard page is any object implementing IWizardPage. The abstract base class WizardPage is provided as a starting point. The main responsibility of a WizardPage subclass is providing the SWT controls and the backing logic for a single wizard page.

WizardDialog is a ready-to-use JFace dialog that is instantiated with a wizard and acts as the wizard's container. This dialog has a standard layout: an area at the top containing the wizard's title, description, and image; the actual wizard page appears in the middle; below it is a progress indicator; and at the bottom is an area with a message line and a button bar containing Next, Back, Finish, Cancel, and Help buttons.

WizardSelectionPage, a special abstract subclass of WizardPage, allows whole other wizards to be connected to a root page.

Note: None of the classes in this package maintain global state.