The type of button or controller feature pressed, if any.
| Select | Depending on the InteractionSourceType of the interaction source, this could be a number of equivalent things: main button on a blicker, air-tap on a hand, and the trigger on a motion controller. |
| Menu | This button is marked with three horizontal lines, same as you would fine on an Xbox One controller. |
| Grasp | These buttons are generally found on the side of the controller. Some hardware has more than one grasp button. |
| Touchpad | A touchpad only counts as pressed when it's held down enough - otherwise, it's just touched, and will give a reading of the position through InteractionSourceState.touchpadPosition. |
| Thumbstick | Similar to the touchpad, moving the thumbstick won't count as pressing it - a press will occur when pressing down on the thumbstick enough. |