Accent Property [Excel 2003 VBA Language Reference]

MsoTriState

MsoTriState can be one of these MsoTriState constants.
msoCTrue
msoFalse
msoTriStateMixed
msoTriStateToggle
msoTrue A vertical accent bar separates the callout text from the callout line.

expression.Accent

expression Required. An expression that returns one of the objects in the Applies To list.

Example

This example adds to myDocument an oval and a callout that points to the oval. The callout text won't have a border, but it will have a vertical accent bar that separates the text from the callout line.

Set myDocument = Worksheets(1)
With myDocument.Shapes
    .AddShape msoShapeOval, 180, 200, 280, 130
    With .AddCallout(msoCalloutTwo, 420, 170, 170, 40)
        .TextFrame.Characters.Text = "My oval"
        With .Callout
            .Accent = msoTrue
            .Border = False
        End With
    End With
End With

Applies to | CalloutFormat Object