Identifies a button control.
Assembly: UIAutomationTypes (in UIAutomationTypes.dll)
Buttons perform a single action when clicked.
A button can be used as a standalone control or as a subcontrol in another control type. For example, the drop-down arrow in a combo box control is a button. When used as a subcontrol, a button is in the control view of the UI Automation tree (not in the content view).