Control Object Properties
SelUnderline RTF Word processor UNDERLINE setting
 

The 'SelUnderline property is a +PxPlus Exclusive

Description This property reflects whether the text will be Underlined for the currently selected text in a RTF Word processor Multi_line style control. If no text is currently selected, the current text entry will be effected.
   
Default The default setting is the control font (0 if not underlined, 1 if underlined)
   
Used by MULTI_LINE (RTF wordprocessing style)