(Delphi DLL) Transition from Cert.ExportPrivateKey to Cert.GetPrivateKey

Provides instructions for replacing deprecated ExportPrivateKey method calls with GetPrivateKey.

Note: This example requires Chilkat v11.0.0 or greater.

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, Cert, PrivateKey;

...

procedure TForm1.Button1Click(Sender: TObject);
var
cert: HCkCert;
privatekeyObj: HCkPrivateKey;
privatekeyOut: HCkPrivateKey;
success: Boolean;

begin
cert := CkCert_Create();

// ------------------------------------------------------------------------
// The ExportPrivateKey method is deprecated:

privatekeyObj := CkCert_ExportPrivateKey(cert);
if (CkCert_getLastMethodSuccess(cert) = False) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

// ...
// ...

CkPrivateKey_Dispose(privatekeyObj);

// ------------------------------------------------------------------------
// Do the equivalent using GetPrivateKey.
// Your application creates a new, empty PrivateKey object which is passed 
// in the last argument and filled upon success.

privatekeyOut := CkPrivateKey_Create();
success := CkCert_GetPrivateKey(cert,privatekeyOut);
if (success = False) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

CkCert_Dispose(cert);
CkPrivateKey_Dispose(privatekeyOut);

end;