Windows, Stream und String hin her convert fehler

[scrat1979]

Ich habe mir dazu mal einen Streamhelper geschrieben, funktioniert bislang problemlos...

Delphi-Quellcode:

[...}
type
  TStreamHelper = class helper for TStream
  public
    procedure ReadString(var Target : string);
    procedure WriteString (const s: string);
end;

[...]

procedure TStreamHelper.ReadString(var Target: String);
var
  len : Integer;
begin
  ReadBuffer(len, SizeOf(len));
  SetLength(Target, len);
  if (len > 0) then
    ReadBuffer(Target[1], len * SizeOf(Char));
end;


procedure TStreamHelper.WriteString (const s: string);
var
  len : Integer;
begin
  len := Length(s);
  WriteBuffer(len, SizeOf(len));
  if (len > 0) then
    WriteBuffer(s[1], len * SizeOf(Char));
end;