VC读取EXECL表格时，如何得知excel单元格的跨行和跨列信息？

[liunatural]

我正在用VC编程读取EXCEL表格中的内容，调用了EXCEL的COM接口:
COleVariant VOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);

_Application objApp;
_Workbook objBook;
Workbooks objBooks;
Worksheets objSheets;
_Worksheet objSheet;
Range objRange;
VARIANT temp;
LPDISPATCH lpDisp; // Often reused variable.

// Instantiate Excel and open an existing workbook.
objApp.CreateDispatch("Excel.Application");
objApp.SetVisible(TRUE);
objBooks = objApp.GetWorkbooks();
objBook = objBooks.Open("D:\\DataMineTest\\database\\Z2610c.xls",
VOptional, VOptional, VOptional, VOptional,
VOptional, VOptional, VOptional, VOptional,
VOptional, VOptional, VOptional, VOptional);
objSheets = objBook.GetWorksheets();
objSheet = objSheets.GetItem(COleVariant((short)1));

由于有的表头单元格跨行和跨列，所以想取得它的跨行和跨列信息，请问有何办法得到此信息？

[sunyuan_01]

mark

[gzshd]

"有的表头单元格跨行和跨列" 是什么意思

一般找某个单元格如下：
COleVariant vOpt(DISP_E_PARAMNOTFOUND, VT_ERROR);
Range r;
r=oSheet.GetRange(COleVariant("B3"),vOpt);//选中该单元格,B3表示第三行第二列的那个单元格