Is there a way to get a notification when a new Wifi Network has been detected?
I glanced through the Native Wifi API Reference and found the WlanRegisterNotification function but I'm not sure if that includes what i am looking for. The remark does not mention it.
Yes, WlanRegisterNotification is indeed the correct function. You need to do a little digging in the documentation to find exactly what each notification provides, by looking at WLAN_NOTIFICATION_DATA (in the remarks section for WlanRegisterNotification), then WLAN_NOTIFICATION_ACM†. Specifically, you're looking for one of these two notifications:
wlan_notification_acm_network_available Which gives a notification when a connectable network is detected, and you're not currently connected to another network, and there isn't an automatic connection available.wlan_notification_acm_scan_list_refresh (Windows 8+)† ACM stands for "auto configuration module"