hi, Abdul , here are some code snippet of my project, it was a c# demo version , and i am researching how to convert it to WinRT DLL.
MainPage.xaml.cs:
private Windows.Devices.Bluetooth.Rfcomm.RfcommDeviceService _service;
private StreamSocket _socket;
private DataWriter _writer;
ObservableCollection<PairedDeviceInfo> _pairedDevices;
async void InitializeRfcommDeviceService()
{
try
{
DeviceInformationCollection DeviceInfoCollection = await DeviceInformation.FindAllAsync(RfcommDeviceService.GetDeviceSelector(RfcommServiceId.SerialPort));
var numDevices = DeviceInfoCollection.Count();
// By clearing the backing data, we are effectively clearing the ListBox
_pairedDevices.Clear();
if (numDevices == 0)
{
MessageDialog md = new MessageDialog("No paired devices found", "Title");
await md.ShowAsync();
}
else
{
// Found paired devices.
foreach (var deviceInfo in DeviceInfoCollection)
{
_pairedDevices.Add(new PairedDeviceInfo(deviceInfo));
}
}
}
catch (Exception ex)
{
}
}
async private void ConnectDevice_Click(object sender, RoutedEventArgs e)
{
DeviceInformation DeviceInfo = await DeviceInformation.CreateFromIdAsync(this.TxtBlock_SelectedID.Text);
try
{
_service = await RfcommDeviceService.FromIdAsync(DeviceInfo.Id);
if (_socket != null)
{
// Disposing the socket with close it and release all resources associated with the socket
_socket.Dispose();
}
_socket = new StreamSocket();
// Note: If either parameter is null or empty, the call will throw an exception
await _socket.ConnectAsync(_service.ConnectionHostName, _service.ConnectionServiceName);
// If the connection was successful, the RemoteAddress field will be populated
MessageDialog md = new MessageDialog(String.Format("Connected to {0}!", _socket.Information.RemoteAddress.DisplayName), "Title");
await md.ShowAsync();
}
catch (Exception ex)
{
_socket.Dispose();
_socket = null;
}
}
/// <summary>
/// Class to hold all paired device information
/// </summary>
public class PairedDeviceInfo
{
internal PairedDeviceInfo(DeviceInformation deviceInfo)
{
this.DeviceInfo = deviceInfo;
this.ID = this.DeviceInfo.Id;
this.Name = this.DeviceInfo.Name;
}
public string Name { get; private set; }
public string ID { get; private set; }
public DeviceInformation DeviceInfo { get; private set; }
}
Package.appxmanifest:
<Capabilities>
<Capability Name="internetClient" />
<m2:DeviceCapability Name="bluetooth.rfcomm">
<m2:Device Id="any">
<m2:Function Type="name:serialPort" />
</m2:Device>
</m2:DeviceCapability>
</Capabilities>
nio
