PRL_RESULT DisplayVmList(const PRL_HANDLE &hServer)
{
    PRL_HANDLE hResult;
    PRL_RESULT nJobResult;

    // Get a list of virtual machines.
    PRL_HANDLE hJob = PrlSrv_GetVmList(hServer);

    // Wait for the job to complete.
    PRL_RESULT ret = PrlJob_Wait(hJob, 10000);
    if (PRL_FAILED(ret))
    {
        fprintf(stderr, "PrlJob_Wait for PrlSrv_GetVmList returned with error: %s\n",
            PRL_RESULT_TO_STRING(ret));
        PrlHandle_Free(hJob);
        return ret;
    }

    // Check the results of PrlSrv_GetVmList.
    ret = PrlJob_GetRetCode(hJob, &nJobResult);
    if (PRL_FAILED(nJobResult))
    {
        fprintf(stderr, "PrlSrv_GetVmList returned with error: %s\n",
            PRL_RESULT_TO_STRING(ret));
        PrlHandle_Free(hJob);
        return ret;
    }

    // Get the results of PrlSrv_GetVmList.
    ret = PrlJob_GetResult(hJob, &hResult);
    if (PRL_FAILED(ret))
    {
        fprintf(stderr, "PrlJob_GetResult returned with error: %s\n",
            PRL_RESULT_TO_STRING(ret));
        PrlHandle_Free(hResult);
        PrlHandle_Free(hJob);
        return ret;
    }

    // Handle to result object is available,
    // job handle is not longer needed, so free it.
    PrlHandle_Free(hJob);

    // Iteratre through the result list.
    PRL_UINT32 nParamsCount = 0;
    ret = PrlResult_GetParamsCount(hResult, &nParamsCount);

    for (PRL_UINT32 i = 0; i < nParamsCount; ++i)
    {
        PRL_HANDLE hVm;

        // Get a handle to result at index i.
        PrlResult_GetParamByIndex(hResult, i, &hVm);

        // Get the name of the virtual machine for result i.
        char szVmNameReturned[1024];
        PRL_UINT32 nBufSize = sizeof(szVmNameReturned);
        ret = PrlVm_GetName(hVm, szVmNameReturned, &nBufSize);

        if (PRL_FAILED(ret))
        {
            printf("PrlVm_GetName returned with error (%s)\n",
                PRL_RESULT_TO_STRING(ret));
        }
        else
        {
            printf("Virtual machine '%s' is available.\n\n", szVmNameReturned);
        }

        // Free the virtual machine handle.
        PrlHandle_Free(hVm);
    }

    return PRL_ERR_SUCCESS;
}