UI Automation Support for the StatusBar Control Type
Note
This documentation is intended for .NET Framework developers who want to use the managed UI Automation classes defined in the System.Windows.Automation namespace. For the latest information about UI Automation, see Windows Automation API: UI Automation.
This topic provides information about UI Automation support for the StatusBar control type. In UI Automation, a control type is a set of conditions that a control must meet in order to use the ControlTypeProperty property. The conditions include specific guidelines for UI Automation tree structure, UI Automation property values and control patterns.
A status bar control displays information about an object being viewed in a window of an application, the object's component, or contextual information that relates to that object's operation within your application.
The following sections define the required UI Automation tree structure, properties, control patterns, and events for the StatusBar control type. The UI Automation requirements apply to all status bar controls, whether Windows Presentation Foundation (WPF), Win32, or Windows Forms.
Required UI Automation Tree Structure
The following table depicts the control view and the content view of the UI Automation tree that pertains to status bar controls and describes what can be contained in each view. For more information on the UI Automation tree, see UI Automation Tree Overview.
| Control View | Content View |
|---|---|
| StatusBar - Edit (0 or more) - Progress Bar (0 or many) - Image (0 or many) - Button (0 or many) |
StatusBar - Edit (0 or more) - ProgressBar (0 or many) - Image (0 or many) - Button (0 or many) |
Required UI Automation Properties
The following table lists the UI Automation properties whose value or definition is especially relevant to progress bar controls. For more information about UI Automation properties, see UI Automation Properties for Clients.
| UI Automation Property | Value | Notes |
|---|---|---|
| AutomationIdProperty | See notes. | The value of this property needs to be unique across all controls in an application. |
| BoundingRectangleProperty | See notes. | The bounding rectangle of a status bar must encompass all of the controls contained within it. |
| ClickablePointProperty | 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. |
| IsKeyboardFocusableProperty | See notes. | If the control can receive keyboard focus, it must support this property. |
| NameProperty | See notes. | The status bar control does not need a name unless more than one is used within an application. In this case, distinguish each bar with names such as "Internet Status" or "Application Status." |
| LabeledByProperty | Null |
The status bar control usually does not have a label. |
| ControlTypeProperty | StatusBar | This value is the same for all UI frameworks. |
| LocalizedControlTypeProperty | "status bar" | Localized string corresponding to the StatusBar control type. |
| IsContentElementProperty | True | The status bar control always contains content. |
| IsControlElementProperty | True | The status bar control is always a control. |
| IsOffscreenProperty | Depends | A status bar control will return True for this property if it is not currently visible on the screen. |
| OrientationProperty | Depends | The value of the control's orientation: horizontal or vertical. |
| IsKeyboardFocusableProperty | False | Not applicable |
| AcceleratorKeyProperty | Null |
Status bars do not have accelerator keys. |
Required UI Automation Control Patterns
The following table lists the UI Automation control patterns required to be supported by status bar controls. For more information about control patterns, see UI Automation Control Patterns Overview.
| Control Pattern | Support | Notes |
|---|---|---|
| IGridProvider | Optional | Status bar controls should support the Grid control pattern so that individual pieces can be monitored and easily referenced for information. |
Required UI Automation Events
The following table lists the UI Automation events required to be supported by all status bar controls. For more information about events, see UI Automation Events Overview.
| UI Automation Event | Support | Notes |
|---|---|---|
| BoundingRectangleProperty property-changed event. | Required | None |
| IsOffscreenProperty property-changed event. | Required | None |
| IsEnabledProperty property-changed event. | Required | None |
| AutomationFocusChangedEvent | Required | None |
| StructureChangedEvent | Required | None |