How can I use System.Bluetooth in Delphi

In Delphi, System.Bluetooth is a unit that provides support for Bluetooth communication in your Delphi programs. You can use System.Bluetooth to perform tasks such as scanning for nearby Bluetooth devices, connecting to Bluetooth devices, and sending and receiving data over Bluetooth.

To use System.Bluetooth in your Delphi program, you will need to include the unit in your program using the uses clause:

uses
  System.Bluetooth;

1 2	uses System.Bluetooth;

Once you have included the System.Bluetooth unit in your program, you can use the classes and functions provided by the unit to access the Bluetooth functionality of your device.

Here is an example of how to use System.Bluetooth to scan for nearby Bluetooth devices and connect to one of them:

uses
  System.Bluetooth;

var
  Manager: TBluetoothManager;
  Adapter: TBluetoothAdapter;
  Device: TBluetoothDevice;
  Socket: TBluetoothSocket;
begin
   //Create a TBluetoothManager instance
  Manager := TBluetoothManager.Current;

   //Get the default Bluetooth adapter
  Adapter := Manager.CurrentAdapter;

   //Scan for nearby Bluetooth devices
  Adapter.StartDiscovery(5000);
  try
     //Wait for the discovery process to complete
    while Adapter.Discovering do
    begin
      Sleep(100);
    end;

     //Iterate through the list of discovered devices
    for Device in Adapter.GetDiscoveredDevices do
    begin
       //Connect to the first device in the list
      Socket := Device.CreateClientSocket(TBluetoothService.SerialPort, False);
      try
        Socket.Connect;
        try
           //Send a message over the socket
          Socket.SendData(TEncoding.UTF8.GetBytes(‘Hello’));
        finally
          Socket.Close;
        end;
      finally
        Socket.Free;
      end;
      Break;
    end;
  finally
    Adapter.CancelDiscovery;
  end;
end;

uses

System.Bluetooth;

var

Manager: TBluetoothManager;

Adapter: TBluetoothAdapter;

Device: TBluetoothDevice;

Socket: TBluetoothSocket;

begin

//Create a TBluetoothManager instance

Manager := TBluetoothManager.Current;

//Get the default Bluetooth adapter

Adapter := Manager.CurrentAdapter;

//Scan for nearby Bluetooth devices

Adapter.StartDiscovery(5000);

try

//Wait for the discovery process to complete

while Adapter.Discovering do

begin

Sleep(100);

end;

//Iterate through the list of discovered devices

for Device in Adapter.GetDiscoveredDevices do

begin

//Connect to the first device in the list

Socket := Device.CreateClientSocket(TBluetoothService.SerialPort, False);

try

Socket.Connect;

try

//Send a message over the socket

Socket.SendData(TEncoding.UTF8.GetBytes(‘Hello’));

finally

Socket.Close;

end;

finally

Socket.Free;

end;

Break;

end;

finally

Adapter.CancelDiscovery;

end;

This example code performs the following tasks:

Creates a TBluetoothManager instance to manage the Bluetooth functionality of the device.
Gets the default Bluetooth adapter using the CurrentAdapter property.
Starts the discovery process using the StartDiscovery method, and waits for it to complete.
Iterates through the list of discovered devices using the GetDiscoveredDevices method, and connects to the first device in the list using the CreateClientSocket method.
Sends a message over the socket using the SendData method, and then closes the socket.

For more information about using System.Bluetooth in Delphi, you can consult the Delphi documentation or search online for examples and tutorials.

How can I use System.Bluetooth in Delphi

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