private int SubclassProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam, uint uIdSubclass, IntPtr dwRefData)
{
switch (uMsg)
{
case NativeMethods.WM_DEVICECHANGE:
if (lParam != IntPtr.Zero)
{
NativeMethods.DEV_BROADCAST_HANDLE dbh = Marshal.PtrToStructure <NativeMethods.DEV_BROADCAST_HANDLE>(lParam);
if (dbh.dbch_eventguid == NativeMethods.GUID_BLUETOOTH_HCI_EVENT)
{
// BTH_HCI_EVENT_INFO
IntPtr bthhci = IntPtr.Add(lParam, 40);
NativeMethods.BTH_HCI_EVENT_INFO ei = Marshal.PtrToStructure <NativeMethods.BTH_HCI_EVENT_INFO>(bthhci);
Debug.WriteLine(ei.bthAddress + (ei.connected > 0 ? " connected" : " disconnected"));
ConnectionStatusChanged?.Invoke(null, ei.bthAddress);
}
else if (dbh.dbch_eventguid == NativeMethods.GUID_BLUETOOTH_L2CAP_EVENT)
{
// BTH_L2CAP_EVENT_INFO
IntPtr bthl2cap = IntPtr.Add(lParam, 40);
NativeMethods.BTH_L2CAP_EVENT_INFO ei = Marshal.PtrToStructure <NativeMethods.BTH_L2CAP_EVENT_INFO>(bthl2cap);
Debug.WriteLine(ei.bthAddress + (ei.connected > 0 ? " connected" : " disconnected"));
ConnectionStatusChanged?.Invoke(null, ei.bthAddress);
}
}
return(0);
}
return(0);
}
private int WindowProc(IntPtr hwnd, uint uMsg, IntPtr wParam, IntPtr lParam)
{
Debug.WriteLine(uMsg);
switch (uMsg)
{
case NativeMethods.WM_DEVICECHANGE:
if (lParam != IntPtr.Zero)
{
NativeMethods.DEV_BROADCAST_HANDLE dbh = Marshal.PtrToStructure <NativeMethods.DEV_BROADCAST_HANDLE>(lParam);
if (dbh.dbch_eventguid == NativeMethods.GUID_BLUETOOTH_HCI_EVENT)
{
//BTH_HCI_EVENT_INFO
IntPtr bthhci = IntPtr.Add(lParam, 40);
NativeMethods.BTH_HCI_EVENT_INFO ei = Marshal.PtrToStructure <NativeMethods.BTH_HCI_EVENT_INFO>(bthhci);
Debug.WriteLine(ei.bthAddress + (ei.connected > 0 ? " connected" : " disconnected"));
ConnectionStateChanged?.Invoke(null, ei.bthAddress);
}
else if (dbh.dbch_eventguid == NativeMethods.GUID_BLUETOOTH_L2CAP_EVENT)
{
//BTH_L2CAP_EVENT_INFO
IntPtr bthl2cap = IntPtr.Add(lParam, 40);
NativeMethods.BTH_L2CAP_EVENT_INFO ei = Marshal.PtrToStructure <NativeMethods.BTH_L2CAP_EVENT_INFO>(bthl2cap);
Debug.WriteLine(ei.bthAddress + (ei.connected > 0 ? " connected" : " disconnected"));
ConnectionStateChanged?.Invoke(null, ei.bthAddress);
}
}
return(0);
case 0x81:
return(-1);
case 1:
case 0x83:
return(0);
}
if (_prevWndProc != IntPtr.Zero)
{
return(NativeMethods.CallWindowProc(_prevWndProc, hwnd, uMsg, wParam, lParam));
}
else
{
return(NativeMethods.DefWindowProc(hwnd, uMsg, wParam, lParam));
}
}
internal BluetoothAdapter(IntPtr radioHandle, NativeMethods.BLUETOOTH_RADIO_INFO radioInfo)
{
_handle = radioHandle;
_radioInfo = radioInfo;
NativeMethods.SetWindowSubclass(Process.GetCurrentProcess().MainWindowHandle, SubclassProc, 1, IntPtr.Zero);
//_messageWindow = new BluetoothMessageWindow();
// register for connection events
NativeMethods.DEV_BROADCAST_HANDLE filter = new NativeMethods.DEV_BROADCAST_HANDLE();
filter.dbch_size = Marshal.SizeOf(filter);
filter.dbch_handle = radioHandle;
filter.dbch_devicetype = NativeMethods.DBT_DEVTYP.HANDLE;
filter.dbch_eventguid = NativeMethods.GUID_BLUETOOTH_L2CAP_EVENT;
_notifyHandle = NativeMethods.RegisterDeviceNotification(Process.GetCurrentProcess().MainWindowHandle, ref filter, NativeMethods.DEVICE_NOTIFY.WINDOWS_HANDLE);
//filter.dbch_eventguid = NativeMethods.GUID_BLUETOOTH_HCI_EVENT;
//int notifyHandle = NativeMethods.RegisterDeviceNotification(Process.GetCurrentProcess().MainWindowHandle, ref filter, NativeMethods.DEVICE_NOTIFY.WINDOWS_HANDLE);
NativeMethods.PostMessage(Process.GetCurrentProcess().MainWindowHandle, 0x401, IntPtr.Zero, IntPtr.Zero);
}
