static extern bool SetupDiEnumDeviceInterfaces( IntPtr DeviceInfoSet, IntPtr DeviceInfoData, ref GUID lpHidGuid, UInt32 MemberIndex, ref SP_DEVICE_INTERFACE_DATA lpDeviceInterfaceData );
static extern bool SetupDiGetDeviceInterfaceDetail( IntPtr DeviceInfoSet, ref SP_DEVICE_INTERFACE_DATA DeviceInterfaceData, IntPtr DeviceInterfaceDetailData, UInt32 DeviceInterfaceDetailDataSize, ref UInt32 RequiredSize, IntPtr DeviceInfoData);
public bool SetupDiEnumDeviceInterfaces(UInt32 memberIndex) { _deviceInterfaceData = new SP_DEVICE_INTERFACE_DATA(); _deviceInterfaceData.cbSize = Marshal.SizeOf(_deviceInterfaceData); bool bResult = SetupDiEnumDeviceInterfaces(_hDevInfo, IntPtr.Zero, ref _guid, memberIndex, ref _deviceInterfaceData); return bResult; }