The Italic propertey returns or specifies whether italics are applied to a text range.
Examples:
The following VBA example applies italics to all text in the paragraph.
Sub Test()
Dim t As Text
Dim s As Shape
Dim d As Document
Set d = CreateDocument
Set s = d.ActiveLayer.CreateParagraphText(2, 2, 8, 8, "This is an example.")
Set t = s.Text
t.Story.Italic = True
End Sub