Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

  ◄Summary► ◄Details► ◄Example►                                   ◄Back►
 
  Argument
 
    code    Optional; integer expression representing a run-time error
            number to pass to the calling program or operating system
            (default is 0)
 
  Description
 
    The RunError procedure ends execution of the program and returns
    control to the calling environment. RunError generates and displays
    a specified run-time error.
 
    The code argument passes a specified run-time error number from the
    terminated program to the program executing it or to the DOS
    environment. RunError passes 0 if the code argument is omitted. By
    convention, 0 means no error. However, it is up to the terminating
    program to establish a meaning for each error value.
 
    Use either the DosExitCode function or the ERRORLEVEL option for
    the IF batch command in DOS to examine the returned code.
 
    To run a custom exit procedure as part of the exit sequence,
    install the address of the procedure in ExitProc, a pointer defined
    in the System unit. Use a custom exit procedure to restore vectors,
    clean up open files, or trap run-time errors.