Doscommand OnCharDecoding Output

[omnibrain 14]

I'm currently experimenting with Turbopack DosCommand and try to capture the following output for the "ping" command. (ping is just an example I try with)

Ping wird ausgeführt für 8.8.8.8 mit 32 Bytes Daten:

But the DosCommand doesn't seem to decode the output right:

Ping wird ausgef�hrt f�r 8.8.8.8 mit 32 Bytes Daten:

I tried to implement the CharDecoding event to decode the output for Unicode

function TForm4.DosCommand1CharDecoding(ASender: TObject;
  ABuf: TStream): string;
var pBytes: TBytes;
  iLength: integer;
begin
  ilength := ABuf.Size;
  if iLength > 0 then
  begin
    SetLength(pBytes, iLength);
    ABuf.Read(pBytes, iLength);
    Result := TEncoding.Unicode.GetString(pBytes);
  end
  else
    Result := '';
end;

but I only get chineese characters as a result:

਍楐杮眠物⁤畡杳晥梁瑲映犁㠠㠮㠮㠮業⁴㈳䈠瑹獥䐠瑡湥ഺ湁睴牯⁴潶⸸⸸⸸㨸祂整㵳㈳娠楥㵴㐲獭吠䱔ㄽ㔱਍湁睴牯⁴潶⸸⸸⸸㨸祂整㵳㈳娠楥㵴㐲獭呔㵌ㄱവ湁睴牯⁴潶⸸⸸⸸㨸祂整㵳㈳娠楥㵴㈲獭吠䱔ㄽ㔱਍湁睴牯⁴潶⸸⸸⸸㨸祂整㵳㈳娠楥㵴㈲獭吠䱔ㄽ㔱਍਍楐杮匭慴楴瑳歩映犁㠠㠮㠮㠮ഺ †倠歡瑥㩥䜠獥湥敤⁴‽ⰴ䔠灭慦杮湥㴠㐠‬敖汲牯湥㴠〠਍††〨‥敖汲獵⥴ബ慃‮敚瑩湡慧敢湩䴠汩楬敳⹫ഺ †䴠湩浩浵㴠㈠洲ⱳ䴠硡浩浵㴠㈠洴ⱳ䴠瑩整睬牥⁴‽㌲獭਍

 

[Uwe Raabe 1877]

What is the result when doing it this way?

TEncoding.ANSI.GetString(pBytes)

 

[omnibrain 14]

18 minutes ago, Uwe Raabe said:

What is the result when doing it this way?

TEncoding.ANSI.GetString(pBytes)

 

Same as without event handler, which is no surprise, as "TEncoding.ANSI" is the default in the DosCommand Unit. https://github.com/TurboPack/DOSCommand/blob/4ded41648e4e1aafa372c7a740fb2366aeb3e9e4/Source/DosCommand.pas#L1042

[Uwe Raabe 1877]

Can you attach the binary stream content here?

[omnibrain 14]

(13, 10, 80, 105, 110, 103, 32, 119, 105, 114, 100, 32, 97, 117, 115, 103, 101, 102, 129, 104, 114, 116, 32, 102, 129, 114, 32, 56, 46, 56, 46, 56, 46, 56, 32)

This is the value from "pbytes" from the watchlist.

 

#$D#$A'Ping wird ausgef'#$0081'hrt f'#$0081'r 8.8.8.8 '

is the result after "TEncoding.ANSI.GetString"

[Uwe Raabe 1877]

Seems your command window uses codepage 850:

 

  var encoding := TMBCSEncoding.Create(850);
  try
    Result := encoding.GetString(pBytes);
  finally
    encoding.Free;
  end;

 

[omnibrain 14]

5 hours ago, Uwe Raabe said:

Seems your command window uses codepage 850:

Thanks, that worked.

The joys of windows legacy and eternal backwards compatibility...

Edited June 9, 2022 by omnibrain

[Fr0sT.Brutal 897]

So Germans have OEM encoding as well! Not only non-latin locales still pulling that old-time mess