System.Beep
From Xojo Documentation
Method
System.Beep()
New in 2019r2
Supported for all project types and targets.
New in 2019r2
Supported for all project types and targets.
Plays the default system alert sound.
Usage
Beep
Notes
The Beep method plays the default Beep sound selected on your computer.
Sample Code
This code beeps if an error occurs: