(Delphi ActiveX) Example: Crypt2.LastSignerCert method

Demonstrates how to call the LastSignerCert method.

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

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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
crypt: TChilkatCrypt2;
p7m_path: WideString;
out_path: WideString;
success: Integer;
numSigners: Integer;
i: Integer;
cert: TChilkatCert;

begin
crypt := TChilkatCrypt2.Create(Self);

p7m_path := 'qa_data/p7m/Firma.docx.p7m';
out_path := 'qa_output/Firma.docx';

success := crypt.VerifyP7M(p7m_path,out_path);
if (success = 0) then
  begin
    Memo1.Lines.Add(crypt.LastErrorText);
    Exit;
  end;

// Examine the certificate(s) used for signing.
numSigners := crypt.NumSignerCerts;
i := 0;

cert := TChilkatCert.Create(Self);

while i < numSigners do
  begin
    crypt.LastSignerCert(i,cert.ControlInterface);
    Memo1.Lines.Add('Signer: ' + cert.SubjectDN);
    i := i + 1;
  end;
end;