How to convert binary data to string

Sort of depends on what precisely you want to do with the string (display it? store it? manipulate it?) and how long that string is (using the shortstring 'string' type, youhave a maximum of 255 characters.)

so you could try
var s : string; i : integer;

i := readbinarydata(.....);
s := '';
while i > 0 do
  s := char(buffer[i]) + s; {assuming buffer is an array of byte}

which may give you a string of non-ASCII characters

or
...
while i > 0 do
  s := hex2(buffer[i]) + s; {assuming buffer is an array of byte}


and hex2 is something like

function hex2(b : byte) : string[2];
const
  hexchars : array[0..15] of char = ('0','1','2',
                                     '3','4','5',
                                     '6','7','8',
                                     '9','A','B',
                                     'C','D','E','F');
begin
  hex2 := hexchars[b div 16] + hexchars[b mod 16];
end;

...it all really depends on what you mean!

...Bill

Carry out below method, you can use buffer var as string.

var Registry: TRegistry;
   Buffer   : array[1..255] of char;
   isize : Integer;
begin
  Registry := TRegistry.Create;

  Registry.RootKey := HKEY_LOCAL_MACHINE;
  Registry.OpenKey('\SOFTWARE\Prn\DEMO2',False);
  iSize := sizeof(Buffer);
  Registry.ReadBinaryData('PASSWD', Buffer, isize);
  Registry.Free;
  Buffer[isize] := #0;
  ShowMessage(buffer);
end;

Dear Mr.millious

Thank u for your detailed mail.
My aim is tio find the current open dir in explorer.

When i  read the binary data stored in
\Software\Microsoft\Windows\CurrentVersion\Explorer\RecentDocs\Folder',

 i := Registry.ReadBinaryData('Value1', Buffer, isize);

it returns the value 0 for all  values stored in the folder.

pls. give your  idea reg. How to get the current open
directory.

rsivam:
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