We have been listening to the HoloLens giving us hints, tips, and commands for quite some time. Now it is time to do the reverse: we are going to give the HoloLens some commands.

Before we begin exploring the world of speech recognition, I want to show you something very important. I start out with this for one simple reason. In every single class I teach, people come to me complaining that they cannot get their code to work: the system just does not listen to their voice commands. Yet they have done everything I taught them, so the HoloLens must be broken!

I can assure you: you will do this as well. The reason I know this is because it also happens to me every now and then, even though I am a trainer on this subject. I am talking about capabilities.

As we have discussed before, a Universal Windows Platform (UWP), app is sandboxed. This means the app cannot do much besides render itself on the screen and listen to keyboard, mouse, and touch input. If you want to do...