C / C++ / MFC

DWORD WINAPI FilesWatchDogThread(LPVOID lpParam)
{
      HANDLE hFileChange = ::FindFirstChangeNotification((LPCTSTR)lpParam, // folder path
                                    TRUE,
                                    FILE_NOTIFY_CHANGE_FILE_NAME); 
   if(INVALID_HANDLE_VALUE == hFileChange)
   {
      DWORD dwError = ::GetLastError();
      return dwError;
   }
   
   while(TRUE)
   {
      ::WaitForSingleObject(hFileChange, INFINITE);
      // do my job
      ::FindNextChangeNotification(hFileChange);
   }
   return 0;
}

   // somewhere …
   ::CreateThread(NULL, 0, &CMyClass::FilesWatchDogThread, _T("c:\\temp"), 0, NULL);

I have 3rd party . OCX file. which loads in HTML scripts and do desired work

Below Steps I have used while creating a Wrapper:

1: In visual Studio-> VC++-CLR-ClassLibrary project
2: Project add Reference (.ocx file)
3: Ref: i am abe to see Interop.Filelib.1.0
4: now in Project.h i am trying to use Filelib but not able to create any object or instance.

While i tried to create an Activex project and added .ocx file getting below stuff and i am not able to understand how to use it and create an wrapper for C#. 

class CDNXCardReaderX : public CWnd
{
protected:
DECLARE_DYNCREATE(CDNXCardReaderX)
public:
CLSID const& GetClsid()
{
static CLSID const clsid
= { 0x222BBB5D, 0xE9FC, 0x4EB6, { 0x9E, 0xD0, 0x41, 0x10, 0x2C, 0x95, 0xC0, 0x3A } };
return clsid;
}
virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle,
const RECT& rect, CWnd* pParentWnd, UINT nID, 
CCreateContext* pContext = NULL)
{ 
return CreateControl(GetClsid(), lpszWindowName, dwStyle, rect, pParentWnd, nID); 
}

BOOL Create(LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, 
UINT nID, CFile* pPersist = NULL, BOOL bStorage = FALSE,
BSTR bstrLicKey = NULL)
{ 
return CreateControl(GetClsid(), lpszWindowName, dwStyle, rect, pParentWnd, nID,
pPersist, bStorage, bstrLicKey); 
}

// Attributes
public:

// Operations
public:

long OpenSessionSync(long Timeout)
{
long result;
static BYTE parms[] = VTS_I4 ;
InvokeHelper(0x2d, DISPATCH_METHOD, VT_I4, (void*)&result, parms, Timeout);
return result;
}


I am totally clueless on what approach shall i use to create object and call these functions.

enum regAddr_e {
   REG_A = 0,
   REG_B = 2,
   REG_C = 4
};

typedef struct {
    regAddr_e regAddr;
    uint16_t regValue;
} regAddrAndValue_s;

typedef struct {
    regAddr_e startRegAddr;
    uint16_t regValues[];
} consecutiveRegAddrAndValues_s;

#define MY_CLEVER_MACRO(__NAME_OF_STRUCT_VARIABLE__)   \
   REG_A, 0x0123,                                      \
   REG_B, 0x04567,                                     \
   REG_C, 0x89AB                                        

consecutiveRegAddrAndValues_s __NAME_OF_STRUCT_VARIABLE__ = {REG_A, {0x0123, 0x4567, 0x89AB}};