DisplayUnitLabel Object (PowerPoint)
Published: July 16, 2012
Represents a unit label on an axis in the specified chart.
Although the following code applies to Microsoft Word, you can readily modify it to apply to PowerPoint.
Use the DisplayUnitLabel property to return the DisplayUnitLabel object. The following example sets the display label caption to "Millions" on the value axis of the first chart in the active document, and then the example turns off automatic font scaling.