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This class is used to manage reference times. It shares the same data layout as the REFERENCE_TIME data type, but adds some (nonvirtual) functions that provide simple comparison, conversion, and arithmetic capabilities.
A reference timeis a unit of time represented in 100-nanosecond units. This time unit is the same time unit used by the Microsoft Win32 FILETIMEstructure, although the two types cannot be interchanged. Note that the time a REFERENCE_TIME represents is not the time elapsed since 1/1/1601. It is either stream time or reference time, depending on the context.
Data Members
| m_time | REFERENCE_TIME value of this object. |
Member Functions
| CRefTime | Constructs a CRefTimeobject. |
| GetUnits | Returns the reference time in units of 100 nanoseconds. |
| Millisecs | Returns the reference time in milliseconds. |
Operators
| operator (REFERENCE_TIME) | Casts the CRefTime object to a REFERENCE_TIME data type. The result is the m_timevalue. |
| operator = | Implements the copy constructor for the CRefTime class. |
| operator += | Adds two CRefTime objects and makes this object equal to the result. |
| operator –= | Subtracts one CRefTime object from another CRefTime object and makes this object equal to the result. |