What is the function of the CTRL key when using the mouse in spying mode?

The function of the CTRL key when using the mouse in spying mode primarily serves to prevent actual mouse clicks from taking place. This is particularly useful when a user is trying to spy on elements within an application. By holding down the CTRL key, the user can hover over various elements of the application without triggering any unintended actions or clicks on those elements. This functionality ensures that the spying process is conducted smoothly, allowing for accurate identification and extraction of information without interfering with the application being spied on.

This feature is essential in environments where you need to analyze UI elements without causing disruptions in the application workflow. It allows a user to focus fully on gathering the necessary data for their automation tasks without the risk of unintentionally activating buttons or links.