ArcObjects Library Reference (Display)  

IUnderline Interface

Indicator interface specifying an underline state for a FontAttribute object.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Inherited Interfaces

Interfaces Description
IFontAttribute Provides access to FontAttribute properties.

CoClasses that implement IUnderline

CoClasses and Classes Description
FontAttributeUnderline Controls whether the text will be underlined.