/// <summary>
/// Queries WMI for Bluetooth COM Ports. Provides useful information on the Console as it does.
/// </summary>
/// <returns></returns>
private ManagementObject[] getWmiCOMData()
{
ManagementObject[] wmiObjects = null;
ManagementObjectSearcher wmiSearcher = null;
try
{
wmiSearcher = new ManagementObjectSearcher(@"select DeviceID,PNPDeviceID from Win32_SerialPort");
ManagementObjectCollection tmpSearchResults = null;
Logger.Info("Searching for Bluetooth COM devices");
wmiSearcher = new ManagementObjectSearcher(@"root\cimv2", "SELECT Name,DeviceID,PNPDeviceID FROM Win32_SerialPort WHERE Name LIKE \"%Bluetooth%\"");
tmpSearchResults = wmiSearcher.Get();
Logger.Info("Found {0} devices, verifying...", tmpSearchResults.Count);
wmiObjects = new ManagementObject[tmpSearchResults.Count];
tmpSearchResults.CopyTo(wmiObjects, 0);
}
catch (System.Management.ManagementException e)
{
Console.WriteLine("Query " + wmiSearcher.Query.ToString() + " threw an exception!\n");
throw e;
}
try
{
int i = 0;
foreach (ManagementObject obj in wmiObjects)
{
if ((obj["Name"] as String).Contains("Bluetooth") == false)
{
Logger.Warning("{0} is not a Bluetooth device! Removing from search results", obj["DeviceID"] as String);
}
else
{
wmiObjects[i] = obj;
++i;
}
}
}
catch (System.Management.ManagementException e)
{
Console.WriteLine("Exception: Unable to read a property from wmi object!\n");
throw e;
}
/* Extremeley self-referencing code to get rid of WMI-detected COM ports that
* have a MAC address of 000000000000 */
wmiObjects = wmiObjects.Where(obj =>
(obj["PNPDeviceID"] as String).Substring(
(obj["PNPDeviceID"] as String).LastIndexOf('_') - MAC_ADDRESS_LENGTH, MAC_ADDRESS_LENGTH)
!= "000000000000").ToArray();
Logger.Info("Verified {0} Bluetooth COM Device(s)", wmiObjects.Length);
return wmiObjects;
}
