(Delphi DLL) ConnectFailReason

The ConnectFailReason property can be examined to determine the reason why the Connect method failed. The possible values are listed in the source code below:

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Ftp2;

...

procedure TForm1.Button1Click(Sender: TObject);
var
ftp: HCkFtp2;
success: Boolean;
failReason: Integer;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

ftp := CkFtp2_Create();

CkFtp2_putHostname(ftp,'ftp.example.com');
CkFtp2_putUsername(ftp,'login');
CkFtp2_putPassword(ftp,'password');

// Connect and login to the FTP server.
success := CkFtp2_Connect(ftp);
if (success <> True) then
  begin

    // The possible failure reasons are:
    // 0 = success
    // Non-SSL socket fail reasons:
    //  1 = empty hostname
    //  2 = DNS lookup failed
    //  3 = DNS timeout
    //  4 = Aborted by application.
    //  5 = Internal failure.
    //  6 = Connect Timed Out
    //  7 = Connect Rejected (or failed for some other reason)
    // SSL failure reasons:
    //  100 = Internal schannel error
    //  101 = Failed to create credentials
    //  102 = Failed to send initial message to proxy.
    //  103 = Handshake failed.
    //  104 = Failed to obtain remote certificate.
    // 300 = asynch op in progress
    // 301 = login failure.
    // 
    failReason := CkFtp2_getConnectFailReason(ftp);

    Memo1.Lines.Add('connect fail reason = ' + IntToStr(failReason));

    Memo1.Lines.Add(CkFtp2__lastErrorText(ftp));
    Exit;
  end;

// ..

CkFtp2_Dispose(ftp);

end;