hello all
i got this error with my code:

Client is indy tcp client

 {code}
  with Client do
  begin
    try
      IOHandler.DefStringEncoding := TIdTextEncoding.Unicode;
      IOHandler.WriteLn(txtData.Text);
      lstLog.Items.Add('sent data: [' + txtData.Text + ']');
    except
      lstLog.Items.Add('failed to send data [' + ip + ']');
      Client.Disconnect();
      lstLog.Items.Add('Disconnect with ' + txtServer.Text + ' !');
      BtnConnect.Enabled := True;
      BtnSend.Enabled := False;
      btnDisconnect.Enabled := False;
    end;
  end;
 {code}

error: 
 {code}
[dcc32 Error] Unit6.pas(83): E2003 Undeclared identifier: 'TIdTextEncoding'
 {code}

i just have to send unicode string to the indy tcp server..
what is wrong with my code?!

regards


P.S. :
when i hide the line :
 {code}
     // IOHandler.DefStringEncoding := TIdTextEncoding.Unicode;
 {code}

compiler can done its work and the output application will work good with English chars , but it convert utf8 chars to ?

> Which versions of Delphi and Indy are you using? 

i use delphi xe5 and indy 10.6.0.5040

so

i changed my code to :

{code} 
IOHandler.DefStringEncoding := IndyTextEncoding_UTF8;
{code} 

And problem resolved!!
but indy have poor knowledge or manual and samples on the web and this make a lot of problems ...

thank you sir.

> Then TIdTextEncoding does not exist, use IIdTextEncoding instead.

how?
i used :
 {code}
IOHandler.DefStringEncoding := IndyTextEncoding_UTF8;
 {code}

and worked good for me 
but how can i use IIdTextEncoding 
this have error in my ide:

 {code}
IOHandler.DefStringEncoding := IIdTextEncoding.UTF8;
 {code}