fgl_winbutton(
   title STRING,
   text STRING,
   default STRING,
   buttons STRING,
   icon STRING,
   danger SMALLINT )
  RETURNS STRING
  | 
Displays an interactive message box containing multiple choices, in a
pop-up window. | 
fgl_winmessage(
   title STRING,
   text STRING,
   icon STRING )
  | 
Displays an interactive message box containing
 text and OK button. | 
fgl_winprompt(
   x INTEGER,
   y INTEGER,
   text STRING,
   default STRING,
   length INTEGER,
   type INTEGER )
  RETURNS STRING
  | 
Displays a dialog box containing a field
that  accepts a value. | 
fgl_winquestion(
   title STRING,
   text STRING,
   default STRING,
   buttons STRING,
   icon STRING,
   danger SMALLINT )
  RETURNS STRING
  | 
Displays an interactive message box with configurable Ok / Yes / No
 / Cancel / Ignore / Abort / Retry buttons. | 
fgl_winwait(
   text STRING )
  | 
Displays an interactive message box and waits for user
validation. |