add_text
Entity: predicate

Usage:
add_text(Edit, Text)
add_text(Edit, Text, FontMask)

Adds the text Text into the edit box Edit with font FontMask.

Edit edit box object
Text the string that will be added
FontMask if you like then you can specify the font and the text color which will be used for the added text.

Examples:
?-
... ,
Red is font_mask(_,rgb(255,0,0),_,_,_,_,_,_),
add_text(Edit, "Added Text", Red).