Qt Scanning Wi-Fi by QNetworkAccessManager

Welcome I have a problem with scanning Wi-Fi to get all available connecting in Wi-Fi. I have writed so far this code:

#include <QCoreApplication>
#include <QNetworkConfigurationManager>
#include <QNetworkConfiguration>
#include <QDebug>
#include <QNetworkSession>

int main(int argc, char *argv[])

{
    QCoreApplication a(argc, argv);
    QNetworkConfigurationManager ncm;
    QNetworkConfiguration cfg;
    QNetworkConfiguration::StateFlags flags;

    int count = QNetworkConfiguration::Active;

   qDebug() << "Amount available connect in Wi-Fi :" << count;

   qDebug() << ncm.allConfigurations(flags = 0);

   return a.exec();

}

I have a problem with shows allConfigurations. I have read documentation Qt Network Configuration Manager but I do not know how to do that.