Проблемы с загрузкой DLL

#include "stdafx.h"
#include <iostream>
#include <windows.h>
 
 
int _tmain(int argc, _TCHAR* argv[])
{
    HINSTANCE hInstLibrary = LoadLibrary(L"pHash.dll");
 
   if (hInstLibrary)
   {
      
 
      FreeLibrary(hInstLibrary);
   }
   else
   {
      std::cout << "DLL Failed To Load!" <<  std::endl;
   }
 
   std::cin.get();
 
   return 0;
}

#include "stdafx.h"
#include <iostream>
#include <windows.h>
 
using namespace std;
typedef unsigned __int64 ulong64;
 
typedef int (*ph_dct_imagehash)(const char* file,ulong64 &hash);
 
int _tmain(int argc, _TCHAR* argv[])
{
    ph_dct_imagehash _ph_dct_imagehash;
    HINSTANCE hInstLibrary = LoadLibrary(L"pHash.dll");
 
   if (hInstLibrary)
   {
      std::cout << "Ok!" <<  std::endl;
 
      _ph_dct_imagehash = (ph_dct_imagehash)GetProcAddress(hInstLibrary, "ph_dct_imagehash");
      ulong64 myhash=0;
      _ph_dct_imagehash("test.jpg", myhash);
      std::cout << myhash <<  std::endl;
 
      FreeLibrary(hInstLibrary);
   }
   else
   {
      std::cout << "DLL Failed To Load!" <<  std::endl;
      std::cout << GetLastError() <<  std::endl;
   }
 
   std::cin.get();
 
   return 0;
}

_ph_dct_imagehash("test.jpg", myhash);

std::cout << std::hex << (unsigned long long) _ph_dct_imagehash << std::endl;