I would like to modify a gauge in CVI to look more like the actual dashboard on a car, maybe even use a photo of an actual speedometer as a gauge in CVI. I see this can be done in LabView, can it be done for CVI?
You cannot modify the controls like you can in LabVIEW. You can modify the color of some of the aspects, but you will not be able to replace it with a speedometer background.
