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c#windows-8bluetooth
Kation
Kation

Reputation: 61

how to know is bluetooth exists in win8 device?

I found a way that use try catch with PeerFinder.FindAllPeersAsync()

But I don't know is bluetooth hardware doesn't exist or bluetooth closed.

How to know difference?

Upvotes: 0

Views: 393

Answers (1)

Sven Grosen
Sven Grosen

Reputation: 5636

According to MSDN, you can determine bluetooth is off by checking the HResult of an exception caught when calling PeerFinder.FindAllPeersAsync(). They provide the following example code:

try
{
    var peers = await PeerFinder.FindAllPeersAsync();

    // Handle the result of the FindAllPeersAsync call
}
catch (Exception ex)
{
    if ((uint)ex.HResult == 0x8007048F)
    {
        MessageBox.Show("Bluetooth is turned off");
    }
}

To detect device capabilities, look into the PeerFinder.SupportedDiscoveryTypes property.

Upvotes: 2

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