Generic UI Controllers: 1 Controller Features and Functions

Controller objects let you include a library's features in your applications with limited work. The controller provides the basic UI gadgetry and feature management functions so you don't have to.

Every library has a set of features that will be used by all or most of the library's users. For example, applications which use the text objects (GenText and VisText) are likely to allow the user to alter justification, font, and text style. Rather than forcing every application to create its own menus and dialogs and lists for managing these features, the text library exports a number of controllers that can be included in the application's UI; these controllers provide and manage the menu items and lists for the user. They also interact directly with the text objects to change the attributes affected.

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