Accessibility Overview: Scroll Bar Role

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Scroll Bar Role

An accessibility object of the scroll bar role includes the following attributes as shown in Table B-31:

**Table B-31** Attributes associated with the scroll bar role
Attribute	Required	Type	Description
Parent	Yes	UIElement	Accessibility object representing the scroll bar’s parent
Position	Yes	Point value	Structure containing screen-position coordinates
Size	Yes	Size value	Structure containing width and height values
Window	Yes	UIElement	Accessibility object representing the scroll bar’s containing window
Top-Level UIElement	Yes	UIElement	Accessibility object representing the scroll bar’s containing window, sheet, or drawer
Help	No	String	Help-tag text for the scroll bar
Enabled	Yes	Boolean	`true` if the user can interact with the scroll bar; `false` if interaction is disabled
Focused	Yes	Boolean	`true` if the scroll bar is focused; `false` otherwise
Children	Yes	UIElement array	Accessibility objects representing the scroller, scroll track, and scroll arrows (see Note below)
Value	Yes	Number	Numeric value representing the position of the scroller
Orientation	Yes	String	Horizontal or vertical orientation of scroll bar; see framework-specific reference documentation for string constant definitions

Note: A scroll bar’s children include an object of the value indicator role (representing the scroller) and 4 objects of the button role that can have the following subroles: Increment Arrow, Increment Page, Decrement Arrow, or Decrement Page. See “Button Role” for more information.

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Last updated: 2008-03-11

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