private string GetDevicePath(IntPtr deviceInfoSet, NativeMethods.SP_DEVICE_INTERFACE_DATA deviceInterfaceData) { var bufferSize = 0; var interfaceDetail = new NativeMethods.SP_DEVICE_INTERFACE_DETAIL_DATA { Size = IntPtr.Size == 4 ? 4 + Marshal.SystemDefaultCharSize : 8 }; NativeMethods.SetupDiGetDeviceInterfaceDetailBuffer(deviceInfoSet, ref deviceInterfaceData, IntPtr.Zero, 0, ref bufferSize, IntPtr.Zero); return(NativeMethods.SetupDiGetDeviceInterfaceDetail(deviceInfoSet, ref deviceInterfaceData, ref interfaceDetail, bufferSize, ref bufferSize, IntPtr.Zero) ? interfaceDetail.DevicePath : null); }
private void _EnumerateDevices() { List <string> paths = new List <string>(); var hidClass = HidClassGuid; var deviceInfoSet = NativeMethods.SetupDiGetClassDevs(ref hidClass, null, 0, NativeMethods.DIGCF_PRESENT | NativeMethods.DIGCF_DEVICEINTERFACE); if (deviceInfoSet.ToInt64() != NativeMethods.INVALID_HANDLE_VALUE) { var deviceInfoData = CreateDeviceInfoData(); var deviceIndex = 0; while (NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, deviceIndex, ref deviceInfoData)) { deviceIndex += 1; var deviceInterfaceData = new NativeMethods.SP_DEVICE_INTERFACE_DATA(); deviceInterfaceData.cbSize = Marshal.SizeOf(deviceInterfaceData); var deviceInterfaceIndex = 0; while (NativeMethods.SetupDiEnumDeviceInterfaces(deviceInfoSet, ref deviceInfoData, ref hidClass, deviceInterfaceIndex, ref deviceInterfaceData)) { deviceInterfaceIndex++; var devicePath = GetDevicePath(deviceInfoSet, deviceInterfaceData); if (!paths.Contains(devicePath)) { paths.Add(devicePath); } } } NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet); } paths.ForEach(x => { if (SUDDriver.DescribeSUD(x).ProductType == SeneyeProductType.SUDv2e) { this.MessageBus.SendMessage <string>(x, "SUDArrived"); } }); }