Specifies whether an underlined font should be used. False by default. This property
is to be used in conjunction with the PrintText method and, in AspJpeg 2.1+, PrintTextEx method.
As of Version 2.1+, if this property is set to True, the method PrintTextEx
draws underlined text. The width and color of the underline is
specified via the Pen.Width and Pen.Color properties.
See also: Chapter 5 - Drawing & Typing.