In Part 1, we introduced the idea of UI Automation custom control providers and created a TriColor control as a sample.  Now, we’re going to try to add one basic property: the “Hello World!” of UI Automation.  Here’s the sample code for this...

Creating a UI Automation provider for a custom control is not a difficult task. At least, we members of the UI Automation team don’t think so. Yet, it is one that engineers continue to find challenging. And so it seems worth writing a walkthrough. I’ll...