How do I use VC++6.0 to protect a excel file to readonly
 

I use VC++6.0 to create a temp excel file, and I don't want other user
to modify it, I use _Workbook.ChangeFileAccess to set readonly, but it
cannot help, a exception throw out, the message is "cannot find
member", when I invoke ChageFileAccess function, the code is like
this:

COleVariant vtOptional((long)DISP_E_PARAMNOTFOUND,
VT_ERROR),vtTrue((short)TRUE),vtFalse((short)FALSE );
_Application *ExcelApp = new _Application;

ExcelApp-CreateDispatch("excel.application");



//ÉèÖÃΪÏÔʾ
ExcelApp-SetVisible(TRUE);
//µÃµ½WorkBooks
Workbooks ExcelBook=ExcelApp-GetWorkbooks();



Sheets ExcelSheet=ExcelBook.Add(vtOptional);
_Workbook workBook;
_Worksheet workSheet;
Range range;
workBook.AttachDispatch(ExcelApp-GetApplication());

ExcelSheet=workBook.GetSheets();

////////////////////////////////////////////
workSheet=ExcelSheet.GetItem(COleVariant((short)1) );
workSheet.Activate();

can anyone help me? Thanks!


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gowinderPosted via http://www.officehelp.in - <a href="http://www.officehelp.in">Microsoft Office Software</a>

help!help!


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gowinderPosted from - http://www.officehelp.in