gnutls_x509_crt_get_authority_key_gn_serial

var gnutls_x509_crt_get_authority_key_gn_serial: function(

  cert: Tgnutls_x509_crt_t;

  seq: dword;

  alt: pointer;

  alt_size: Psize_t;

  alt_type: PDWord;

  serial: pointer;

  serial_size: Psize_t;

  critical: PDWord

):LongInt;