/// <summary>
/// Discovers accessible Bluetooth devices and returns their names and addresses.
/// </summary>
/// <returns>An array of BluetoothDeviceInfo objects describing the devices discovered.</returns>
public BluetoothDeviceInfo[] DiscoverDevices()
{
ArrayList al = new ArrayList();
try {
int handle = 0;
byte[] queryset = new byte[1024];
BitConverter.GetBytes((int)60).CopyTo(queryset, 0);
BitConverter.GetBytes((int)16).CopyTo(queryset, 20);
int bufferlen = 1024;
int lookupresult = 0;
//start looking for Bluetooth devices
lookupresult = BthNsLookupServiceBegin(queryset, LookupFlags.Containers, ref handle);
while (lookupresult != -1)
{
lookupresult = BthNsLookupServiceNext(handle, LookupFlags.ReturnAddr | LookupFlags.ReturnName, ref bufferlen, queryset);
if (lookupresult != -1)
{
//pointer to outputbuffer
int bufferptr = BitConverter.ToInt32(queryset, 48);
//remote socket address
int sockaddrptr = Marshal.ReadInt32((IntPtr)bufferptr, 8);
//remote socket len
int sockaddrlen = Marshal.ReadInt32((IntPtr)bufferptr, 12);
BluetoothSocketAddress btsa = new BluetoothSocketAddress();
Marshal.Copy((IntPtr)sockaddrptr, btsa.ToByteArray(), 0, BluetoothSocketAddress.Length);
//new deviceinfo
BluetoothDeviceInfo newdevice = new BluetoothDeviceInfo(btsa.Address, Marshal.PtrToStringUni((IntPtr)BitConverter.ToInt32(queryset, 4)));
//add to discovered list
al.Add(newdevice);
}
}
//stop looking
lookupresult = BthNsLookupServiceEnd(handle);
//return results
}
catch (Exception ex) {
System.Diagnostics.Debug.WriteLine("Exception in DiscoverDevices(): " + ex.Message);
PriceMarkdown.Helpers.logError("Exception in DiscoverDevices(): " + ex.Message);
}
return((BluetoothDeviceInfo[])al.ToArray(typeof(BluetoothDeviceInfo)));
}
/// <summary>
/// Discovers accessible Bluetooth devices and returns their names and addresses.
/// </summary>
/// <returns>An array of BluetoothDeviceInfo objects describing the devices discovered.</returns>
public BluetoothDeviceInfo[] DiscoverDevices()
{
ArrayList al = new ArrayList();
try {
int handle = 0;
byte[] queryset = new byte[1024];
BitConverter.GetBytes((int)60).CopyTo(queryset, 0);
BitConverter.GetBytes((int)16).CopyTo(queryset, 20);
int bufferlen = 1024;
int lookupresult = 0;
//start looking for Bluetooth devices
lookupresult = BthNsLookupServiceBegin(queryset, LookupFlags.Containers, ref handle);
while (lookupresult != -1) {
lookupresult = BthNsLookupServiceNext(handle, LookupFlags.ReturnAddr | LookupFlags.ReturnName, ref bufferlen, queryset);
if (lookupresult != -1) {
//pointer to outputbuffer
int bufferptr = BitConverter.ToInt32(queryset, 48);
//remote socket address
int sockaddrptr = Marshal.ReadInt32((IntPtr)bufferptr, 8);
//remote socket len
int sockaddrlen = Marshal.ReadInt32((IntPtr)bufferptr, 12);
BluetoothSocketAddress btsa = new BluetoothSocketAddress();
Marshal.Copy((IntPtr)sockaddrptr, btsa.ToByteArray(), 0, BluetoothSocketAddress.Length);
//new deviceinfo
BluetoothDeviceInfo newdevice = new BluetoothDeviceInfo(btsa.Address, Marshal.PtrToStringUni((IntPtr)BitConverter.ToInt32(queryset, 4)));
//add to discovered list
al.Add(newdevice);
}
}
//stop looking
lookupresult = BthNsLookupServiceEnd(handle);
//return results
}
catch (Exception ex) {
System.Diagnostics.Debug.WriteLine("Exception in DiscoverDevices(): " + ex.Message);
PriceMarkdown.Helpers.logError("Exception in DiscoverDevices(): " + ex.Message);
}
return (BluetoothDeviceInfo[])al.ToArray(typeof(BluetoothDeviceInfo));
}