Ersatz für Batch Befehl CHOICE ?

[turboPASCAL]

Das soll nicht funktionieren ?

Delphi-Quellcode:

program Dings;

{$APPTYPE CONSOLE}

uses
  Windows;

procedure Exec(FullFileName: String);
var
  Err : Integer;
begin
  Err := WinExec(@FullFileName[1], SW_SHOWNORMAL);
  if Err <= 31 then
  begin
    WriteLn(''''+FullFileName+'''');
    case Err of
      0                      : WriteLn('The system is out of memory or resources.');
      ERROR_BAD_FORMAT      : WriteLn('The .EXE file is invalid (non-Win32 .EXE'+
                                     ' or error in .EXE image).');
      ERROR_FILE_NOT_FOUND : WriteLn('The specified file was not found.');
      ERROR_PATH_NOT_FOUND : WriteLn('The specified path was not found.');
        else WriteLn('Unkown Error');
    end;
    // Halt;
  end;
end;

procedure WriteChars(AnyChar: Char; Count: Word; NewLine: Boolean);
var i: Word;
begin
  for i := 0 to Count do
    Write(AnyChar);
  if NewLine then Writeln;
end;

function MyStrToInt(s: string; var i: integer): Boolean;
var
  Err: Integer;
begin
  val(s, i, err);
  if err <> 0 then MyStrToInt := False
    else MyStrToInt := True;
end;

var
  s: string;
  n: Integer;

begin
  WriteLn;
  WriteChars('-', 40, TRUE);
  WriteLn;
  WriteLn('[1] - Dell Latitude C840');
  WriteLn('[2] - PC001');
  WriteLn('[3] - Abbruch');
  WriteLn;
  WriteChars('-', 40, TRUE);
  WriteLn;

  repeat
    Write('Ihre Auswahl: ');
    Readln(s);

    if MyStrToInt(s, n) then
    begin
      case n of
        1: Exec('c:\net\netbind.com');
        2: Exec('c:\net\net.exe');
        3: WriteLn('Abbruch durch User.');
        else Write('Unzulaessige Eingabe. ');
      end;
    end else
      Write('Unzulaessige Eingabe. ');

  until n in [1..3];
end.