How do detect if phone supports WLAN and what is the MAC address?

There are one simple way to detect if phone supports WLAN. This is useful if your application only runs in a WLAN enabled phone:

A) Does the S60 3rd device have WLAN chip?
In /epoc32/include/featurediscovery.h file , the wlan key can be used to query for the feature.

/**
Device supports WLAN protocol.
*/
const TInt KFeatureIdProtocolWlan = 109;


B) and how to read the MAC address in S60 3rd edition devices:
[url]http://www.forum.nokia.com/Technical_Library/FNTL/Retrieving_WLAN_MAC_address.htm[/url]