ActivateGlare Last update: 17.07.2025 Description Applies glare on the map and returns 0 if no error has occurred. Syntax object.ActivateGlare(short bGlareOn) As Short object: Virtual Human Vision Lab object bGlareOn: any value different from 0 to activate, 0 to inactivate. In order for the display to take these changes into account, you need to call the UpdateDisplayAndData method.