The Fundamentals of Accessibility

Consider this article your one-stop shop for all things IAccessible.  Below is a summary of the most important topics under my accessibility category. 



Getting Started


New to Accessibility?  So was I three years ago.  Get caught-up by reading my MSDN whitepaper on Testing for Accessibility.  Also, remember that Accessibility isn’t a feature.  Just like localization, globalization, security, performance, and so forth, it is a standard that must be addressed.



MSAA / IAccessible


If you want your feature to be accessible, you’ll need to implement IAccessible.


Must Read:  Explanation of each of the IAccessible Properties


Must Read:  Which Control-Types Support Which Properties


Must Read:  How To Really Support MSAA Names


Commonly Asked Questions regarding Invisible, Offscreen and Unavailable States


Which Properties Must Be Localized



Must Read:  MSAA / IAccessible Samples 

Fiona, one of the devs on my team VSCore, has put together a really nice sample on how to implement IAccessible for a Custom Push Button


Must Read:  MSAA Testing Tools


Have you ever used AccExplorer or Inspect and wondered whether the information presented was correct? Have you ever wanted to know which controls really need Names, Keyboard Shortcuts, Descriptions, and so forth? It's time to MsaaVerify! MsaaVerify will verify 9 Microsoft Active Accessibility properties for 10 Microsoft Active Accessibility Role types.



Updated!  How To Really Do Screen Reader Testing.


In the past, I’ve focused on testing MSAA Properties.  Now we’re ready to take screen reading testing to the next level by adding Events into the algorithm.  It is not only essential that a control support the correct MSAA properties, but it is also essential that the control fire the right event for these properties.



Accessibility Macros


As demo’ed at CSUN, these macros allow users to tweak the Visual Studio .NET 2003 IDE by easily increasing and decreasing font size, toggling colors in the editor to pure black on white (or vice versa), and maximizing tool windows.



Bugs to look out for


A listing of unpopular bugs given to me by an Assistive Technology Vendor


What the High Underline Letters Checkbox Actually Does


Why Radio Buttons don’t resize



Channel 9 Video


My Channel 9 Interview on Accessibility and Visual Studio

more at





Presenting at CSUN


Getting Ready




Blogging and Accessibility Presentation

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