I can not define any variabe in the ddk samlpe

sorry for the late response it because  I am in different time zone.

I am sending code in which I just add "LPDWORD lpSize ;" statament.

compiler says

Compiling - watermarkuni\wmarkui\wmarkui.cpp
1>c:\winddk\7600.16385.1\src\print\oemdll\watermarkuni\wmarkui\wmarkui.cpp(139)
: error C2220: warning treated as error - no 'object' file generated
Linking Executable - watermarkuni\wmarkui\watermarkuni\wmarkui\objfre_win7_x86\i
386\wmarkuniui.dll
1>link : error LNK1181: cannot open input file 'c:\winddk\7600.16385.1\src\print
\oemdll\watermarkuni\wmarkui\objfre_win7_x86\i386\wmarkui.obj'
BUILD: Linking for c:\winddk\7600.16385.1\src\print\oemdll\watermarkuni\wmarkuni
 directory
_NT_TARGET_VERSION SET TO WINXP
BUILD: Finish time: Mon Feb 21 09:41:22 2011
BUILD: Done

wmarkui.cpp(139) is exactly where I put statement.

static HRESULT hrDocumentPropertyPage(DWORD dwMode, POEMCUIPPARAM pOEMUIParam)
{
   
   
  
   LPDWORD lpSize ; // this is variable I add 
   
    
   
   if ( NULL == pOEMUIParam || NULL == pOEMUIParam->pOEMDM )
    {
        ERR(DLLTEXT("hrDocumentPropertyPage() ERROR_INVALID_PARAMETER.\r\n"));
        // Return invalid parameter error.
        SetLastError(ERROR_INVALID_PARAMETER);
        return E_FAIL;
    }
    if(NULL == pOEMUIParam->pOEMOptItems)
    {
        // Fill in the number of OptItems to create for OEM document property UI.
        pOEMUIParam->cOEMOptItems = 4;

        VERBOSE(DLLTEXT("hrDocumentPropertyPage() requesting items.\r\n"));
    }
    else if(dwMode == OEMCUIP_DOCPROP)
    {
        POEMDEV pOEMDev = (POEMDEV) pOEMUIParam->pOEMDM;


        VERBOSE(DLLTEXT("hrDocumentPropertyPage() fill out items.\r\n"));

        // Init UI Callback reference.
        pOEMUIParam->OEMCUIPCallback = OEMUICallBack;

        // Init OEMOptItmes.
        InitOptItems(pOEMUIParam->pOEMOptItems, pOEMUIParam->cOEMOptItems);

        // Fill out tree view items.

        // Water Mark Section Name.
        pOEMUIParam->pOEMOptItems[0].Level = 1;
        pOEMUIParam->pOEMOptItems[0].Flags = OPTIF_COLLAPSE;
        pOEMUIParam->pOEMOptItems[0].pName = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_WATERMARK);
        pOEMUIParam->pOEMOptItems[0].Sel = pOEMDev->bWmarkEnabled ? 0 : 1;

        pOEMUIParam->pOEMOptItems[0].pOptType = CreateOptType(pOEMUIParam->hOEMHeap, 2);

        pOEMUIParam->pOEMOptItems[0].pOptType->Type = TVOT_COMBOBOX;
        pOEMUIParam->pOEMOptItems[0].pOptType->pOptParam[0].pData = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_ENABLED);
        pOEMUIParam->pOEMOptItems[0].pOptType->pOptParam[0].IconID = IDI_CPSUI_ON;
        pOEMUIParam->pOEMOptItems[0].pOptType->pOptParam[1].pData = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_DISABLED);
        pOEMUIParam->pOEMOptItems[0].pOptType->pOptParam[1].IconID = IDI_CPSUI_OFF;

		
		

        // WaterMark Text.
        pOEMUIParam->pOEMOptItems[1].Level = 2;
        pOEMUIParam->pOEMOptItems[1].Flags = 0;
        pOEMUIParam->pOEMOptItems[1].pName = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_TEXT);
        pOEMUIParam->pOEMOptItems[1].pSel = (LPTSTR) HeapAlloc(pOEMUIParam->hOEMHeap, HEAP_ZERO_MEMORY, MAX_PATH * sizeof(WCHAR));
         if(FAILED(StringCbCopyW((LPWSTR)pOEMUIParam->pOEMOptItems[1].pSel, MAX_PATH * sizeof(WCHAR), pOEMDev->szWaterMark)))
        {
            ERR(DLLTEXT("hrDocumentPropertyPage() failed to copy water mark text \r\n"));
        } 
		
		VERBOSE(DLLTEXT("hata getusername().\r\n"));
		
		
		
        pOEMUIParam->pOEMOptItems[1].pOptType = CreateOptType(pOEMUIParam->hOEMHeap, 2);

        pOEMUIParam->pOEMOptItems[1].pOptType->Type = TVOT_EDITBOX;
        pOEMUIParam->pOEMOptItems[1].pOptType->pOptParam[1].IconID = sizeof(((POEMDEV)NULL)->szWaterMark)/sizeof(WCHAR);


        // WaterMark Font Size.
        pOEMUIParam->pOEMOptItems[2].Level = 2;
        pOEMUIParam->pOEMOptItems[2].Flags = 0;
        pOEMUIParam->pOEMOptItems[2].pName = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_FONTSIZE);
        pOEMUIParam->pOEMOptItems[2].Sel = FontSizeToIndex(pOEMDev->dwWmarkFontSize);

        pOEMUIParam->pOEMOptItems[2].pOptType = CreateOptType(pOEMUIParam->hOEMHeap, 16);

        pOEMUIParam->pOEMOptItems[2].pOptType->Type = TVOT_COMBOBOX;
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[0].pData = L"8";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[1].pData = L"9";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[2].pData = L"10";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[3].pData = L"11";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[4].pData = L"12";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[5].pData = L"14";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[6].pData = L"16";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[7].pData = L"18";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[8].pData = L"20";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[9].pData = L"22";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[10].pData = L"24";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[11].pData = L"26";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[12].pData = L"28";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[13].pData = L"36";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[14].pData = L"48";
        pOEMUIParam->pOEMOptItems[2].pOptType->pOptParam[15].pData = L"72";


        // WaterMark Color.
        pOEMUIParam->pOEMOptItems[3].Level = 2;
        pOEMUIParam->pOEMOptItems[3].Flags = 0;
        pOEMUIParam->pOEMOptItems[3].pName = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_COLOR);
        pOEMUIParam->pOEMOptItems[3].Sel = TextColorToIndex(pOEMDev->crWmarkTextColor);

        pOEMUIParam->pOEMOptItems[3].pOptType = CreateOptType(pOEMUIParam->hOEMHeap, 4);

        pOEMUIParam->pOEMOptItems[3].pOptType->Type = TVOT_COMBOBOX;
        pOEMUIParam->pOEMOptItems[3].pOptType->pOptParam[0].pData = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_GRAY);
        pOEMUIParam->pOEMOptItems[3].pOptType->pOptParam[1].pData = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_RED);
        pOEMUIParam->pOEMOptItems[3].pOptType->pOptParam[2].pData = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_GREEN);
        pOEMUIParam->pOEMOptItems[3].pOptType->pOptParam[3].pData = GetStringResource(pOEMUIParam->hOEMHeap, ghInstance, IDS_BLUE);
    }

    return S_OK;
}

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aa

I forgot the use variable