pub unsafe extern "system" fn NCryptExportKey(
    hkey: NCRYPT_KEY_HANDLE,
    hexportkey: NCRYPT_KEY_HANDLE,
    pszblobtype: PCWSTR,
    pparameterlist: *const BCryptBufferDesc,
    pboutput: *mut u8,
    cboutput: u32,
    pcbresult: *mut u32,
    dwflags: NCRYPT_FLAGS
) -> HRESULT