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UI Automation Support for the TitleBar Control Type

This topic provides information about Microsoft UI Automation support for the TitleBar control type. A title bar control represents a title or caption bar in a window.

The following sections define the required UI Automation tree structure, properties, control patterns, and events for the TitleBar control type. The UI Automation requirements apply to all title bar controls, whether Microsoft Windows Presentation Foundation (WPF), Microsoft Win32, or Windows Forms.

This topic contains the following sections.

Required UI Automation Tree Structure

The following table depicts the control view and the content view of the UI Automation tree that pertains to title bar controls and describes what can be contained in each view. For more information about the UI Automation tree, see UI Automation Tree Overview.

Control View Content View
  • TitleBar
    • Menu (0 or 1)
    • Button (0 or more)
Not applicable (the title bar control has no content)

Required UI Automation Properties

The following table lists the UI Automation properties whose value or definition is especially relevant to the TitleBar control type. For more information about UI Automation properties, see UI Automation Properties for Clients.

UI Automation Property Value Notes
UIA_AcceleratorKeyPropertyId "" The title bar control does not have an accelerator key.
UIA_AccessKeyPropertyId "" The title bar control does not have an access key.
UIA_AutomationIdPropertyId See notes. The value of this property needs to be unique across all controls in an application.
UIA_BoundingRectanglePropertyId See notes. The value exposed by this property must include all of the controls contained within it.
UIA_ClickablePointPropertyId See notes. Supported if there is a bounding rectangle. If not every point within the bounding rectangle is clickable, and you perform specialized hit testing, then override and provide a clickable point.
UIA_ControlTypePropertyId TitleBar This value is the same for all UI frameworks.
UIA_HelpTextPropertyId "" It is not necessary to expose help text for a title bar control.
UIA_IsContentElementPropertyId FALSE The title bar control is never included in the content view of the UI Automation tree.
UIA_IsControlElementPropertyId TRUE The title bar control is always included in the control view of the UI Automation tree.
UIA_IsKeyboardFocusablePropertyId FALSE A title bar control never has keyboard focus.
UIA_IsOffscreenPropertyId Depends A title bar control returns a value depending on whether it is visible on the screen.
UIA_LabeledByPropertyId See notes. A title bar control typically does not have a label.
UIA_LocalizedControlTypePropertyId See notes. Localized string corresponding to the TitleBar control type. The default value is "title bar" for en-US or English (United States).
UIA_NamePropertyId "" A title bar is not content; its textual information is exposed on the parent window.

Required UI Automation Control Patterns

The TitleBar control type is not required to support any control patterns. Its functionality is exposed through the Window control pattern on the Window control type.

Required UI Automation Events

The following table lists the UI Automation events that title bar controls are required to support. For more information on events, see UI Automation Events Overview.

UI Automation Event Notes
UIA_AutomationFocusChangedEventId None
UIA_BoundingRectanglePropertyId property-changed event. None
UIA_IsEnabledPropertyId property-changed event. If the control supports the IsEnabled property, it must support this event.
UIA_IsOffscreenPropertyId property-changed event. If the control supports the IsOffscreen property, it must support this event.
UIA_StructureChangedEventId None

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