How to read the jpeg image and save to the database?

using namespace Gdiplus;
	GdiplusStartupInput gdiplusStartupInput;
	ULONG_PTR gdiplusToken;
	GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
	int c=0;
	HDC scrdc, memdc;
	HBITMAP membit;
	HBITMAP hOldBitmap;
	CString lpfilename;
	char buffer[1000];
		   
	
	for(;;)
	{
		
		
		scrdc = ::GetDC(0);
		int Height = GetSystemMetrics(SM_CYSCREEN);
		int Width = GetSystemMetrics(SM_CXSCREEN);
		memdc = CreateCompatibleDC(scrdc);
		membit = CreateCompatibleBitmap(scrdc, Width, Height);
		 hOldBitmap=(HBITMAP) SelectObject(memdc, membit);
		BitBlt(memdc, 0, 0, Width, Height, scrdc, 0, 0, SRCCOPY);

		Gdiplus::Bitmap bitmap(membit, NULL);
		CLSID clsid;
		GetEncoderClsid(L"image/jpeg", &clsid);

		sprintf_s(buffer,"D:\image%u.jpeg",c);
		lpfilename=buffer;
		
			bitmap.Save(lpfilename, &clsid);
			CFile file;
			BYTE buf[150];
			CStringA charstr(lpfilename);
	   const char *szSingle;
       szSingle=((const char *) charstr);
	   //czFile=(char*)szSingle;
	
      FILE * fp= NULL; 
	  fp = fopen(szSingle,"wb"); 
	  if(fp == NULL) return ;
	  fread(buf,150,150,fp);
	  StrByte=buf;

			

			CString strDateTime;
			SYSTEMTIME datetime;
			::GetLocalTime(&datetime);
			strDateTime.Format(_T("%02i-%02i-%02i %d:%d:%d"),
            datetime.wYear,
            datetime.wMonth,     
            datetime.wDay,       
			datetime.wHour,
            datetime.wMinute,
            datetime.wSecond);	

			CString SqlStr4;
			SqlStr4 = "INSERT INTO log VALUES grab_date='";
			SqlStr4 +=strDateTime;
			SqlStr4 += "',ip_address='";
			SqlStr4 +=SqlStr3;
			SqlStr4 += "',image='";
			SqlStr4 += StrByte;
			SqlStr4 +="';";


			 db->BeginTrans();
			 db->ExecuteSQL(SqlStr4);
			 db->CommitTrans();			
			 Sleep(10000);
			 c++;
		}
		
		SelectObject(memdc, hOldBitmap);

		DeleteObject(memdc);

		DeleteObject(membit);

		::ReleaseDC(0,scrdc);
	

	GdiplusShutdown(gdiplusToken);
}