windows beacon seems to be working

Bluetooth_LE_beacon/winrt/uxplay-beacon.py

@@ -4,25 +4,98 @@
 # a standalone python-3.6 or later winrt-based  AirPlay Service-Discovery Bluetooth LE beacon for UxPlay 
 # (c)  F. Duncanh, October 2025
 
+
 import gi
 try:
     from gi.repository import GLib
 except ImportError:
     print(f"ImportError: failed to import GLib")
 
-    
 
+# Import WinRT APIs
+
+try:
+    import winrt.windows.foundation.collections
+except ImportError:
+    print(f"ImportError from winrt-Windows.Foundation.Collections")
+    print(f"Install with 'pip install winrt-Windows.Foundation.Collections'")
+    
+try:
+    import winrt.windows.devices.bluetooth.advertisement as ble_adv
+except ImportError:
+    print(f"ImportError from winrt-Windows.Devices.Bluetooth.Advertisement")
+    print(f"Install with 'pip install winrt-Windows.Devices.Bluetooth.Advertisement'")
+
+try:
+    import winrt.windows.storage.streams as streams
+except ImportError:
+    print(f"ImportError from winrt-Windows.Storage.Streams")
+    print(f"Install with 'pip install winrt-Windows.Storage.Streams'")
+
+import struct
+import ipaddress
+import asyncio
+
+#global variables used by winrt.windows.devices.bluetooth.advertisement code
+publisher = None
+
+def on_status_changed(sender, args):
+    print(f"Publisher status: {args.status}")
+
+
+def create_airplay_service_discovery_advertisement_publisher(ipv4_str, port):
+    assert port > 0
+    assert port <= 65535
+    mfg_data = bytearray([0x09, 0x08, 0x13, 0x30]) # Apple Data Unit type 9 (Airplay), length 8, flags 0001 0011, seed 30
+    ipv4_address = ipaddress.ip_address(ipv4_str)
+    ipv4 = bytearray(ipv4_address.packed)     
+    mfg_data.extend(ipv4)
+    port_bytes = port.to_bytes(2, 'big')
+    mfg_data.extend(port_bytes)
+    writer = streams.DataWriter()
+    writer.write_bytes(mfg_data)
+    manufacturer_data = ble_adv.BluetoothLEManufacturerData()
+    manufacturer_data.company_id = 0x004C   #Apple
+    manufacturer_data.data = writer.detach_buffer()
+    advertisement = ble_adv.BluetoothLEAdvertisement()
+    advertisement.manufacturer_data.append(manufacturer_data)
+    global publisher
+    publisher = ble_adv.BluetoothLEAdvertisementPublisher(advertisement)
+    publisher.add_status_changed(on_status_changed)
+
+async def publish_advertisement():
+    try:
+        publisher.start()
+        print(f"Publisher started successfully")
+
+    except Exception as e:
+        print(f"Failed to start Publihser: {e}")
+        ptint(f"Publisher Status: {publisher.status}")
+
+    
 def setup_beacon(ipv4_str, port, advmin, advmax, index):
-    print(f"setup_beacon port {ipv4_str}:{port} [{advmin}:{advmax}] ({index})")
+    #index will be ignored
+    print(f"setup_beacon port {ipv4_str}:{port} Note: min, max advertising interval and index are not used)")
+    create_airplay_service_discovery_advertisement_publisher(ipv4_str, port)
     
 def beacon_on():
     print(f"beacon_on")
-    return True
+    global publisher
+    try:
+        asyncio.run( publish_advertisement())
+        return True
+    except Exception as e:
+        print(f"Failed to start publisher: {e}")
+        return False
+
     
 def beacon_off():
     print(f"beacon off")
+    global publisher
+    publisher.stop()
+    publisher = None
     
-#==generic code (non-dbus) below here =============
+#==generic code (non-winrt) below here =============
 
 import argparse
 import os