AxisTitle Object (PowerPoint)
Represents a chart axis title.
Use the AxisTitle property to return an AxisTitle object.
The AxisTitle object does not exist and cannot be used unless the HasTitle property for the axis is True.
Note Although the following code applies to Microsoft Word, you can readily modify it to apply to PowerPoint.
The following example sets the caption, sets the font to Bookman 10 point, and formats the word "millions" as italic for the axis title of the value axis for the first chart in the active document.
With ActiveDocument.InlineShapes(1) If .HasChart Then With .Chart.Axes(xlValue) .HasTitle = True With .AxisTitle .Caption = "Revenue (millions)" .Font.Name = "bookman" .Font.Size = 10 .Characters(10, 8).Font.Italic = True End With End With End If End With