Font :: underline - Underline property
The option causes glyphs to be displayed with an underline, when the property is set to true.
Options.GUIFramework.Fonts._std_font.underline=true
Return value:  Enable resource ( bool  )
In order to enable the referenced resource true should be passed. Passing false will disable the resource.
Implementation overview
- Get underline property
 Font :: underline (  )
- Change underline settings
 Font :: underline ( bEnable )

