context->setContextProperty("network", d->network);
d->wifi_a = static_cast<WifiAdapter*>(d->network->findAdapter("wifi"));
Q_CHECK_PTR(d->wifi_a);
context->setContextProperty("network", d->network);
d->wifi_a = static_cast<WifiAdapter*>(d->network->findAdapter("wifi"));
Q_CHECK_PTR(d->wifi_a);