(Delphi DLL) Find a Certificate in the "Other People" Windows Certificate Store

Demonstrates how to open the "Current User --> Other People" Windows certificate store, and locates a certificate matching an email address.

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, CertStore;

...

procedure TForm1.Button1Click(Sender: TObject);
var
certStore: HCkCertStore;
readOnly: Boolean;
success: Boolean;
cert: HCkCert;

begin
certStore := CkCertStore_Create();

// The "AddressBook" is the "Other People" certificate store as shown in certmgr.msc
readOnly := True;
success := CkCertStore_OpenWindowsStore(certStore,'CurrentUser','AddressBook',readOnly);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCertStore__lastErrorText(certStore));
    Exit;
  end;

cert := CkCertStore_FindCertByRfc822Name(certStore,'sales.edifact@somewhere.com');
if (CkCertStore_getLastMethodSuccess(certStore) <> True) then
  begin
    Memo1.Lines.Add(CkCertStore__lastErrorText(certStore));
    Exit;
  end;

Memo1.Lines.Add('Found certificate: ' + CkCert__subjectDN(cert));

CkCert_Dispose(cert);

CkCertStore_Dispose(certStore);

end;