How to get worksheet name?

[Dang.D.Khanh]

Hi,
I'm having trouble locating the worksheet name ,
My code uses as following:

IDispatch* xlSheet; //<--get xlSheet ok

   VARIANT result4;
    VariantInit(&result4);
    AutoWrap(DISPATCH_PROPERTYGET, &result4, xlSheet, L"Name",0); 
    if (result4.vt == VT_BSTR)
    {
	  
    }

Can you tell me where did I go wrong?
because from this post says it takes no arguments so I set the number of arguments to 0 .

The error I get is :



When I use the code snippets from above post, it runs fine.
Did I misspelled the property name "NAME"?

Thanks you!