case NEROAPI_BURN_FUNCTION_NOT_ALLOWED:
          AppendString ("BurnCD() : function not allowed");
          break;
        case NEROAPI_BURN_DRIVE_NOT_ALLOWED:
          AppendString ("BurnCD() : drive not allowed");
          break;
		case NEROAPI_BURN_USER_ABORT:
          AppendString ("BurnCD() : user aborted");
          break;
		case NEROAPI_BURN_BAD_MESSAGE_FILE:
          AppendString ("BurnCD() : bad message file");
          break;
        default:
          AppendString ("BurnCD() : unknown error");
		  break;
      }
    }
  }
}

BOOL NERO_CALLBACK_ATTR CNeroFiddlesDlg::IdleCallback(void *pUserData)
{
  // idle callback is called frequently by NeroAPI

  // make sure that messages from other controls can be handled

  static MSG msg;
  while (!(((CNeroFiddlesDlg*)pUserData)->mbAborted) && ::PeekMessage(&msg,NULL,NULL,NULL,PM_NOREMOVE))
  {
    if (!AfxGetThread()->PumpMessage())
	  {
      break;
	  }
	}

  // aborted-flag serves as function result

  return ((CNeroFiddlesDlg*)pUserData)->mbAborted;
}

void CNeroFiddlesDlg::NeroAPIInit()
{
  // initialization part, provide necessary information and check status

  mbAborted = false;

  // try to open the NeroAPI DLL

  if (!NeroAPIGlueConnect (NULL))
  {
    AppendString("Cannot open NeroAPI.DLL");

    // it makes no sense to continue after loading the DLL failed

    return;
  }

  // the NeroAPI DLL could be openend, get version information

  AppendString("Retrieving version information.");

  WORD majhi, majlo, minhi, minlo;

  NeroGetAPIVersionEx(&majhi, &majlo, &minhi, &minlo, NULL);


  // format and display the version information

  CString strVersion;
  strVersion.Format("NeroAPI version %d.%d.%d.%d",
                    majhi, majlo, minhi, minlo);

  AppendString(strVersion);

  // setup of structures that the NeroAPI needs

  AppendString("Filling NERO_SETTINGS structure");

  // Information for registry access

  strcpy(pcNeroFilesPath, "NeroFiles");
  strcpy(pcVendor, "ahead");
  strcpy(pcSoftware, "Nero - Burning Rom");

  // use the US-English error message file

  strcpy(pcLanguageFile, "Nero.txt");

  nsSettings.nstNeroFilesPath = pcNeroFilesPath;
  nsSettings.nstVendor = pcVendor;

  // set pointers to various callback functions

  nsSettings.nstIdle.ncCallbackFunction = IdleCallback;      

  // this pointer is required to access non-static variables from callback functions

  nsSettings.nstIdle.ncUserData = this;
  nsSettings.nstSoftware = pcSoftware;
  nsSettings.nstUserDialog.ncCallbackFunction = UserDialog; 
  nsSettings.nstUserDialog.ncUserData = this;
  nsSettings.nstLanguageFile =pcLanguageFile;

  // npProgress will be used during the burn process

  npProgress.npAbortedCallback = AbortedCallback;
  npProgress.npAddLogLineCallback = AddLogLine;
  npProgress.npDisableAbortCallback = NULL;
  npProgress.npProgressCallback = ProgressCallback;
  npProgress.npSetPhaseCallback = SetPhaseCallback;
  npProgress.npUserData = this;
  npProgress.npSetMajorPhaseCallback=NULL;	
  npProgress.npSubTaskProgressCallback=NULL;


  // no devices available yet

  pndiDeviceInfos = NULL;

  // initialize the NeroAPI with nsSettings and the 
  // Serial Number that we got from the Registry

  NEROAPI_INIT_ERROR initErr;
  initErr = NeroInit (&nsSettings, NULL);

  // display the result of NeroInit()

  switch (initErr)
  {
    case NEROAPI_INIT_OK:
      AppendString("Initialization of the NeroAPI successful.");
      break;
    case NEROAPI_INIT_INVALID_ARGS:
      AppendString("The arguments are not valid.");
      break;
    case NEROAPI_INIT_INVALID_SERIAL_NUM:
      AppendString("The Serial Number is not valid.");
      break;
    default:
      AppendString("An error occured. The type of error cannot be determined.");
      break;
  }

  // get a list of available drives

  pndiDeviceInfos = NeroGetAvailableDrivesEx (MEDIA_CD, NULL);

  // check whether any devices have been found 

  if (!pndiDeviceInfos)
  {
    // no device found, let the user know

    AppendString("NeroGetAvailableDrivesEx() returned no available devices.");
  }
  else
  {
    // devices found

    // check the number of available devices to be sure

    if (pndiDeviceInfos->nsdisNumDevInfos > 0)
    {
      // we have some devices, now fill the ComboBox

      AppendString("Found the following devices:");
      for (DWORD dDeviceCounter = 0; dDeviceCounter < pndiDeviceInfos->nsdisNumDevInfos; dDeviceCounter++)
      {
        AppendString(pndiDeviceInfos->nsdisDevInfos[dDeviceCounter].nsdiDeviceName);

        // add the device name to the ComboBox and get the index number

        int i = mcbxDevices.AddString(pndiDeviceInfos->nsdisDevInfos[dDeviceCounter].nsdiDeviceName);

        // use the index number to access the corresponding entry
        // connect the entry's ItemData pointer to a NERO_DEVICE_INFO structure

        mcbxDevices.SetItemDataPtr(i, &pndiDeviceInfos->nsdisDevInfos[dDeviceCounter]);
      }

      // select the first ComboBox entry

      mcbxDevices.SelectString(-1, pndiDeviceInfos->nsdisDevInfos[0].nsdiDeviceName);
    }
    else
    {
      AppendString("The number of available devices is 0.");
    }
  }
}

void CNeroFiddlesDlg::AppendString(CString str)
{
  // a CString for temporary use

  CString   strBuffer;

  // retrieve the content of the EditControl we use for messages

  medtMessages.GetWindowText (strBuffer);

  // add a new line if the EditControl is not empty

  if (!strBuffer.IsEmpty())
  {
     strBuffer += "\r\n";
  }

  // append the string the function got as a parameter

  strBuffer += str;

  // update the EditiControl with the new content

  medtMessages.SetWindowText (strBuffer);

  // Scroll the edit control to the end

  medtMessages.LineScroll (medtMessages.GetLineCount(), 0);
}

NeroUserDlgInOut NERO_CALLBACK_ATTR CNeroFiddlesDlg::UserDialog(void *pUserData, NeroUserDlgInOut type, void *data)
{
  // handling of messages that require the user to perform an action
  // for reasons of brevity we only deal with the messages that 
  // are absolutely mandatory for this application

  switch (type)
  {
    case DLG_AUTO_INSERT:
      return DLG_RETURN_CONTINUE;
      break;
    case DLG_DISCONNECT_RESTART:
      return DLG_RETURN_ON_RESTART;
      break;
    case DLG_DISCONNECT:
      return DLG_RETURN_CONTINUE;
      break;
    case DLG_AUTO_INSERT_RESTART:
      return DLG_RETURN_EXIT;
      break;
    case DLG_RESTART:
      return DLG_RETURN_EXIT;
      break;
    case DLG_SETTINGS_RESTART:
      return DLG_RETURN_CONTINUE;
      break;
    case DLG_OVERBURN:
      return DLG_RETURN_TRUE;
      break;
    case DLG_AUDIO_PROBLEMS:
      return DLG_RETURN_EXIT;
      break;
    case DLG_FILESEL_IMAGE:
      {
        // create filter for image files

        static char BASED_CODE szFilter[] = "Image Files (*.nrg)|*.nrg|All Files (*.*)|*.*||";

        // create a CFileDialog object. 
        // usage : CFileDialog( BOOL bOpenFileDialog, LPCTSTR lpszDefExt = NULL, LPCTSTR lpszFileName = NULL,
        //                      DWORD dwFlags = OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, LPCTSTR lpszFilter = NULL,
        //                      CWnd* pParentWnd = NULL );
        //
        // bOpenFileDialog = TRUE, create a File Open dialog 
        // lpszDefExt = NULL, do not automatically append a file extension
        // dwFlags = OFN_OVERWRITEPROMPT, makes no sense during file open,
        //           just in case we decide to use File Save later
        // szFilter = "Image Files (*.nrg)|*.nrg|All Files (*.*)|*.*||"
        // pParentWnd = ((CNeroFiddlesDlg*)pUserData), our current Dialog window is the parent

        CFileDialog dlgOpen(TRUE, NULL, "test.nrg", OFN_OVERWRITEPROMPT, szFilter, ((CNeroFiddlesDlg*)pUserData));

        // check how the dialog was ended

        if (dlgOpen.DoModal() == IDOK)
        {
          // user pressed "OK", copy the file name to the data parameter

          strcpy((char*)data,dlgOpen.GetPathName());

          // proceed with the burn process

          return DLG_RETURN_TRUE; 
        }
        else
        {
          // user canceled, do not proceed with the burn process

          return DLG_BURNIMAGE_CANCEL;
        }
      }
      break;
    case DLG_WAITCD:
    {
      NERO_WAITCD_TYPE waitcdType = (NERO_WAITCD_TYPE) (int)data;
	  char *waitcdString = NeroGetLocalizedWaitCDTexts (waitcdType);
      ((CNeroFiddlesDlg*)pUserData)->AppendString(waitcdString);
	  NeroFreeMem(waitcdString);
      return DLG_RETURN_EXIT;
      break;
    }
    default:
      break;
  }

  // default return value, in case we forgot to handle a request
  
  return DLG_RETURN_EXIT;
}

BOOL NERO_CALLBACK_ATTR CNeroFiddlesDlg::ProgressCallback(void *pUserData, DWORD dwProgressInPercent)
{
  // the NeroAPI updates the current progress counter

  // set the progress bar to the percentage value that was passed to this function

  ((CNeroFiddlesDlg*)pUserData)->mpgsProgress.SetPos(dwProgressInPercent);

  return true;
}

BOOL NERO_CALLBACK_ATTR CNeroFiddlesDlg::AbortedCallback(void *pUserData)
{
  // do not ask the user if he really wants to abort
  // just return the aborted flag

  return ((CNeroFiddlesDlg*)pUserData)->mbAborted;
}

void NERO_CALLBACK_ATTR CNeroFiddlesDlg::AddLogLine(void *pUserData, NERO_TEXT_TYPE type, const char *text)
{
  // Add the text that was passed to this function to the message log
  CString csTemp(text);
  ((CNeroFiddlesDlg*)pUserData)->AppendString("Log line:" + csTemp);
  return;
}

void NERO_CALLBACK_ATTR CNeroFiddlesDlg::SetPhaseCallback(void *pUserData, const char *text)
{
  // display the current phase the burn process is currently going through
  CString csTemp(text);
  ((CNeroFiddlesDlg*)pUserData)->AppendString("Phase: " + csTemp);
  return;
}

void CNeroFiddlesDlg::NeroAPIFree()
{
  // free the resources that have been used

  // make sure there is something to free so we do not run into an exception
  if (pndiDeviceInfos)
  {
    NeroFreeMem(pndiDeviceInfos);
  }

  // nothing to check before calling these functions

  NeroClearErrors();
  if(NeroDone())
  {
	  AfxMessageBox("Detected memory leaks in NeroFiddles");
  }

  NeroAPIGlueDone();

  return;
}

void CNeroFiddlesDlg::OnOK() 
{
  // TODO: Add extra validation here

  // user decides to quit by pressing "OK"

  NeroAPIFree();
  
  CDialog::OnOK();
}

void CNeroFiddlesDlg::OnCancel() 
{
  // TODO: Add extra cleanup here

  // user decides to quit by pressing "Cancel"
  // we handle this like the "OK" button

  NeroAPIFree();
  
  CDialog::OnCancel();
}

void CNeroFiddlesDlg::OnAbort() 
{
  // TODO: Add your control notification handler code here

  // nothing more required but setting the aborted flag

  mbAborted = true;
}