Querying WiFi/WLAN network frequency via Native Wifi

Question

---

The system control panel shows this info.

How can I query it (using C#)?

Using interop, I got the WLAN_ASSOCIATION_ATTRIBUTES.

But they only seem to contain DOT11_PHY_TYPE dot11PhyType;.

This gives me some information, but not all.

• Enum values
• Wifi Types

Example:

1. dot11PhyType is 7.
2. 7 means dot11_phy_type_ht.
3. dot11_phy_type_ht is 802.11n.
4. 802.11n is 2.4 or 5 GHz?

Apparently most protocols can use multiple frequencies. So how can I get the currently used one? Should I just show the highest value in the list?

I think I'm misunderstanding something here.

Answer 1

According to the suggestion of Mike Petrichenko:

You could try to use WlanGetNetworkBssList.

It returns WLAN_BSS_LIST each item of that (WLAN_BSS_ENTRY) contains ulChCentrFrequency field. That is what you are looking for.