yes_no
Entity: predicate

Usage:
yes_no( Title, Text, Icon)

Invokes an application modal dialog box with buttons "Yes" and "No"
 
Title the title of the dialog box window
Text the text inside the window (usually the question to be answered)
Icon one of the predefined message icons

Fails if "No" is pressed succeeds otherwise.
 

Example:

?-
  yes_no("yes_no(..) test", "Succeed?",?),
  write("Succeeded!"), nl.
 

See also:

 message