Accessing wifi hardware status via Microsoft.WindowsMobile.Status.SystemState

The State and Notification Broker in WM6 supports the following new properties (not present in WM5 SDK)

* BluetoothStateA2DPConnected
* BluetoothStateDiscoverable
* BluetoothStateHandsFreeAudio
* BluetoothStateHandsFreeControl
* BluetoothStateHardwarePresent
* BluetoothStatePowerOn

and

* WiFiStateConnected
* WiFiStateConnecting
* WiFiStateHardwarePresent
* WiFiStateNetworksAvailable
* WiFiStatePowerOn

To use these properties, you must add a reference to Microsoft.WindowsMobile.Status found in C:\Program Files\Windows Mobile 6 SDK\Managed Libraries\Microsoft.WindowsMobile.Status.dll (that is, the WM6 SDK), and not another DLL having the same name found in C:\Program Files\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\DesignTimeReferences\Microsoft.WindowsMobile.PocketOutlook.dll (which is for WM5 SDK). If you mistakenly add the WM5 SDK's DLL, you won't be able to access these properties.

Reference:

What's New For Managed Developers In Windows Mobile 6