public void RegisterForPnpEvents()
{
Win32Api.DEV_BROADCAST_DEVICEINTERFACE devBroadcastDeviceInterface = new Win32Api.DEV_BROADCAST_DEVICEINTERFACE();
IntPtr devBroadcastDeviceInterfaceBuffer;
IntPtr deviceNotificationHandle;
System.Windows.Interop.HwndSource hwndSource = System.Windows.Interop.HwndSource.FromHwnd(new System.Windows.Interop.WindowInteropHelper(this).Handle);
hwndSource.AddHook(new System.Windows.Interop.HwndSourceHook(WndProc));
int size = Marshal.SizeOf(devBroadcastDeviceInterface);
devBroadcastDeviceInterface.dbcc_size = size;
devBroadcastDeviceInterface.dbcc_devicetype = Win32Api.DBT_DEVTYP_DEVICEINTERFACE;
devBroadcastDeviceInterface.dbcc_reserved = 0;
devBroadcastDeviceInterface.dbcc_classguid = DEVICE_INTERFACE_GUID_STDFU;
devBroadcastDeviceInterfaceBuffer = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(devBroadcastDeviceInterface, devBroadcastDeviceInterfaceBuffer, true);
deviceNotificationHandle = Win32Api.RegisterDeviceNotification(hwndSource.Handle, devBroadcastDeviceInterfaceBuffer, Win32Api.DEVICE_NOTIFY_WINDOW_HANDLE);
Marshal.FreeHGlobal(devBroadcastDeviceInterfaceBuffer);
}
private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// Handle whatever Win32 message it is we feel like handling
if (msg == Win32Api.WM_DEVICECHANGE)
{
if (wParam.ToInt32() == Win32Api.DBT_DEVICEARRIVAL)
{
Win32Api.DEV_BROADCAST_DEVICEINTERFACE devBroadcastDeviceInterface = new Win32Api.DEV_BROADCAST_DEVICEINTERFACE();
Marshal.PtrToStructure(lParam, devBroadcastDeviceInterface);
OnDeviceArrival(devBroadcastDeviceInterface.dbcc_classguid, devBroadcastDeviceInterface.dbcc_name);
}
else if (wParam.ToInt32() == Win32Api.DBT_DEVICEREMOVECOMPLETE)
{
Win32Api.DEV_BROADCAST_DEVICEINTERFACE devBroadcastDeviceInterface = new Win32Api.DEV_BROADCAST_DEVICEINTERFACE();
Marshal.PtrToStructure(lParam, devBroadcastDeviceInterface);
OnDeviceRemoveComplete(devBroadcastDeviceInterface.dbcc_classguid, devBroadcastDeviceInterface.dbcc_name);
}
handled = true;
}
return(IntPtr.Zero);
}
