

Task

Display the string       Goodbye, World!       on a GUI object   (alert box, plain window, text area, etc.).



Related task

   Hello world/Text


(with-dyn-lib "user32.dll"
  (deffi messagebox "MessageBoxW" int (cptr wstr wstr uint)))
 
(messagebox cptr-null "Hello" "World" 0) ;; 0 is MB_OK