Desktop Progress Wheel
From Xojo Documentation
The Progress Wheel control is often displayed to indicate that a time-consuming operation is in progress.
Visible - Set Visible to True to show the Progress Wheel. When it is visible, it displays a spinning animation.
In order for the Progress Wheel to spin, it must be made visible and the long-running process should be in a Thread. If the long-running process is not in a Thread, then it will not allow the user interface to update and thus not allow the Progress Wheel to spin.
Display a ProgressWheel before starting a long-running process: