Microsoft accessibility standards rule 25a

#Microsoft accessibility standards rule 25a windows

These settings should not be changed by controls or applications. Users can use the Control Panel to set some system-wide flags other flags can be set programmatically. Respect All System-Wide Settings and Do Not Interfere with Accessibility Functions The best practice in this section ensures that controls or applications do not override user settings. Similarly, for WPF controls, NameProperty and HelpTextProperty are important for assistive technology devices.ДЇollowing this best practice allows assistive technologies to identify and manipulate UI in sample controls and applications.Д®nsure Programmatic Events Are Triggered by All UI ActivitiesДЇollowing this best practice allows assistive technologies to listen for changes in the UI and notify the user about these changes. A descriptive title is critical for users who are blind and depend on screen readers. For example, a Web page title of 'Microsoft Web Page' is useless if the user has navigated deeply into some particular area. Therefore, the title must be descriptive. Place Names, Titles, and Descriptions on UI Objects, Frames, and PagesДЄssistive technologies, especially screen readers, use the title to understand the location of the frame, object, or page in the navigation scheme. If the control is a custom control вЂ“ a control that has been subclassed from a common control or a control that has been subclassed from Control вЂ“ then you must check the AutomationPeer implementation for areas that may need modification.ДЇollowing this best practice allows assistive technology vendors to identify and manipulate elements of your product's UI. If the UI is a standard WPF control, support for programmatic access is included in the control. User interface (UI) elements should enable programmatic access. Custom controls require additional work to ensure that programmatic access is correctly implemented.Д®nable Programmatic Access to all UI Elements and Text For standard WPF controls, most of this work is already done through AutomationPeer. Programmatic access involves ensuring that all UI elements are labeled, property values are exposed, and appropriate events are raised. In many cases, the work to meet these best practices is already included in WPF controls.

#Microsoft accessibility standards rule 25a windows

Each best practice includes implementation information for Windows Presentation Foundation (WPF) controls or applications. Many of these best practices focus on good user interface (UI) design. Implementing the following best practices in controls or applications will improve their accessibility for people who use assistive technology devices. For the latest information about UI Automation, see Windows Automation API: UI Automation.

NET Framework developers who want to use the managed UI Automation classes defined in the namespace.