(Delphi DLL) Transition from Cert.ExportPublicKey to Cert.GetPublicKey

Provides instructions for replacing deprecated ExportPublicKey method calls with GetPublicKey.

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, PublicKey;

...

procedure TForm1.Button1Click(Sender: TObject);
var
cert: HCkCert;
publickeyObj: HCkPublicKey;
publickeyOut: HCkPublicKey;
success: Boolean;

begin
cert := CkCert_Create();

// ------------------------------------------------------------------------
// The ExportPublicKey method is deprecated:

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

// ...
// ...

CkPublicKey_Dispose(publickeyObj);

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

publickeyOut := CkPublicKey_Create();
success := CkCert_GetPublicKey(cert,publickeyOut);
if (success = False) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

CkCert_Dispose(cert);
CkPublicKey_Dispose(publickeyOut);

end;