Call this method to set the time span of the CFileTimeSpan object.
void SetTimeSpan(
   LONGLONG nSpan 
) throw( );
Parameters
- nSpan
The new value for the time span. 
Requirements
Header: atltime.h
Call this method to set the time span of the CFileTimeSpan object.
void SetTimeSpan(
   LONGLONG nSpan 
) throw( );
Header: atltime.h