C / C++ / MFC

CoInitialize(NULL);
{
    Excel::_ApplicationPtr XL;
    HRESULT hr;
    try
    {
        XL.CreateInstance(L"Excel.Application");

        // create workbook & worksheet
        // identify range to which array will be assigned

        _variant_t var((long)DISP_E_PARAMNOTFOUND,VT_ERROR);

        XL->Workbooks->Add(Excel::xlWorksheet);
        Excel::_WorksheetPtr pSheet = XL->ActiveSheet;

        Excel::RangePtr pRange = pSheet->Cells;//on this line error is occur

        Excel::RangePtr pBeginRange = pRange->Item[1][1];
        Excel::RangePtr pEndRange = pRange->Item[1][1];
        Excel::RangePtr pTotalRange = pSheet->Range[(Excel::Range*)pBeginRange][(Excel::Range*)pEndRange];

        // create some BSTRs
        wchar_t wsz1[] = L"C";
        wchar_t wsz2[] = L"D";
        BSTR bstr1;
        bstr1 = SysAllocString(wsz1);

        BSTR bstr2;
        bstr2 = SysAllocString(wsz2);

        // create safearray
        SAFEARRAYBOUND rgsabound[2] = { 0 };
        rgsabound[0].cElements = 1; // num rows
        rgsabound[0].lLbound = 0; // lower bound
        rgsabound[1].cElements = 1; // num cols
        rgsabound[1].lLbound = 0; // lower bound

        VARIANT arr;
        arr.vt = VT_ARRAY | VT_BSTR;
        arr.parray = SafeArrayCreate(VT_BSTR,2,rgsabound);
        // identify index we want to change
        long index[2];
        // modify first element <0,0>
        index[0] = 0;
        index[1] = 0;
        hr = SafeArrayPutElement(arr.parray,index,bstr1);


        // assign safearray to range
        pTotalRange->PutValue2(&arr);
        // cleanup
        VariantClear(&arr);
        SysFreeString(bstr1);
        SysFreeString(bstr2);

        XL->Visible = true;

    }
    catch(_com_error &error)
    {
        cout << "COM error " << endl;
    }
}
CoUninitialize();

0x800706F7 

"the stub received bad data" 

SQLConfigDataSource(NULL, ODBC_ADD_SYS_DSN, _T("Microsoft Access Driver (*.mdb)\0"), _T("DSN=SAMPLEE\0DBQ=D:\\SAMPLE.mdb\0"));

void CSelectTool::OnLButtonDown(CNetMapView* pView, UINT nFlags, const CPoint& point)
{
	CRect rect = m_Tracker.m_rect;
	// if an line is within rect then store their point into ptLine
	...
	CPoint ptLine;
	if(rect.PtInRect(rectLine.TopLeft()))ptLine = rectLine.TopLeft();
	if(rect.PtInRect(rectLine.BottomRight()))ptLine = rectLine.BottomRight();
	...
}

void CSelectTool::OnMouseMove(CNetMapView* pView, UINT nFlags, const CPoint& point)
{
	CRect rect = m_Tracker.m_rect;
	// rect was moved , but I want to move ptLine in  the update position
	// what is new value of ptLine ?
}

//CMyView.h

...
...
typedef struct tagLine{
	CDrawObj* pObj;
	UINT nHandle;
	CPoint point;
}Line;
...
...

	CList<<Line,Line>> m_line;
...

//CSelectTool.cpp

void CSelectTool::OnLButtonDown(CMyView* pView, UINT nFlags, const CPoint& point)
{
	// pObj is an valid pointer of custom object
	// I don't know how to insert new element !?
	pView->m_line.AddTail(pView->Line(pObj,1,point));	// this is error
}

void CSelectTool::OnMouseMove(CMyView* pView, UINT nFlags, const CPoint& point)
{
	// I don't know how to access element of pView->m_line;
}