Access X509 Certificate store with unmanaged C++

Question

Does anyone know how I would do the equivalent of the below C# code using unmanaged C++ i.e. query a certificate from the X509 certificate store by thumbprint?

Answer 1

The code from CertFindCertificateInStore. will not work on newer systems. On newer versions of Windows the certificate's name or subject are in Unicode format which uses 2 bytes for each character. The folowing line:

LPCSTR lpszCertSubject = (LPCSTR) "Cert_subject_1";

has to be change into:

LPCWSTR lpszCertSubject = (LPCWSTR ) L"Cert_subject_1";

or

LPCTSTR lpszCertSubject = (LPCTSTR ) _T"Cert_subject_1"; // add #include  

depending on what you need.