C / C++ / MFC

Sk Mohiuddin wrote:

I cannot find error at this code?

LRESULT CALLBACK HookKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
  // do we care about this message?
  if((wParam == WM_KEYDOWN) || (wParam == WM_SYSKEYDOWN))
  {
    KBDLLHOOKSTRUCT *kb = (KBDLLHOOKSTRUCT *)lParam;
    // log the VK code, as it's a 0-254 by definition;
    BYTE byOut = (BYTE) (kb->vkCode);

    FILE* fout = fopen("log.txt", "a+");
    if (fout)
    {
      fwrite(&byOut, 1, 1, fout);
      fclose(fout);
    }
  }
  // call next hook in the chain
  return CallNextHookEx( hHook, nCode, wParam, lParam);
}

Dhiraj kumar Saini wrote:

But I need to POST some variables at the same time along with their values

CString str;
long count = addIns.GetCount(); //powerpoint addins
for(int i=0;i<count;i++)>
{
    //Here I have to use Item(..) as mentioned above.
    VARIANT var;
    var.vt = VT_I4;
    var.lVal = i;
    LPDISPATCH lpDisp = TheInterface->Item( &var );
}

SRKSHOME wrote:

How do I convert integer or long to VARIANT* type in C++?

CComVariant varTemp (lMyLongVariable);
HRESULT hr = SomeFunction (&varTemp, other, parameters, here);

CString MakeHexText (BYTE *byIn, UINT nCount)
{
   CString strReturn, strByte;
   for (UINT n = 0; n < nCount; n++)
   {
       strByte.Format (_T("%02x"), byIn [n]);
       strReturn += strByte;
   }
   return strReturn;
}