Function CertGetNameStringA 

pub unsafe extern "stdcall" fn CertGetNameStringA(
    pCertContext: PCCERT_CONTEXT,
    dwType: DWORD,
    dwFlags: DWORD,
    pvTypePara: *mut c_void,
    pszNameString: LPSTR,
    cchNameString: DWORD,
) -> DWORD