An event which is raised when a cell is changed in a worksheet.
class CXlSheetChangeEvent : public CXlEvent
The event occurs when a cell is changed in a worksheet.
Observers can register for this event at any point in the life of the XLL. Registration can be done explicitly using Register, or automatically by creating an instance of CXlSheetChangeEventStaticObserver.
When observers are notified, an argument of type CXlRangeEventArgs is passed.