Cocoa OS X NSLevelIndicator type

Question

The default NSLevelIndicator styles are shown in the image below:

How can I make the level indicator to look the same as this one in the Sound.prefPane of the System Preferences app (Input level)?

Answer 1

You'll have to roll your own control.

There's no default control in Cocoa (up to and including OS X 10.9) - or even a custom control I'm aware of - providing that style out of the box for you.