ObjectPascal
ExitCode
Variable
Sets the return code when an application terminates System unit
  var ExitCode : Integer;
Description
The ExitCode variable is the code returned by a terminating application to the invoker.
 
The ExitCode value will be displayed in a dialog box if the ErrorAddr variable is non 0 when the program terminates.
Related commands
Addr Gives the address of a variable, function or procedure
ErrorAddr Sets the error address when an application terminates
 
Example code : Display the exit code in a termination error dialog
var
  i : Integer;
begin
  // Set up an error address so that halt shows a termination dialog
  ErrorAddr := Addr(i);

  // Set the program exit code
  ExitCode := 8;
end;
Show full unit code
   When the program terminates, an error dialog is displayed:
  
   Runtime error    8 at 0069FC94