Is the CXlOper missing (i.e. omitted from the caller's argument list)?
[C++]
BOOL IsMissing() const;
Returns TRUE if the CXlOper has been omitted from the list of arguments by the caller, FALSE otherwise.
Header: xllplus.h
CXlOper Class
| CXlOper Methods
| CXlOper::IsArray()
| CXlOper::IsDouble()
| CXlOper::IsError()
| CXlOper::IsBool()
| CXlOper::IsString()
| CXlOper::IsEmpty()
| CXlOper::IsInt()
| CXlOper::IsSRef()
| CXlOper::IsMRef()
| CXlOper::IsRef()