Flush.PAS

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  {Flush.PAS}
  ▀▀▀▀▀▀▀▀▀▀▀▀▀
 {Sample code for the Flush procedure.}

  uses WinDos, WinCrt;

  procedure ReportError(s : String);
    { Redirect output to the DOS standard
     error handle and emit an error message,
     then halt.
     The file "output" must be flushed before
     its handle is changed, or some earlier
     output may appear with the error
     message.}
    begin
    Flush(output); { Must flush current output}
    { Redirect output to standard error handle}
    TTextRec(output).handle := 2;
    Writeln(s);
    Halt(1);
    end;
  begin
  ReportError('An error occurred');
  end.

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