CBaseReferenceClock::GetTime
Microsoft DirectShow 9.0 |
CBaseReferenceClock::GetTime
The GetTime method retrieves the current reference time. This method implements the IReferenceClock::GetTime method.
Syntax
HRESULT GetTime( REFERENCE_TIME *pTime );
Parameters
pTime
Pointer to a variable that receives the current time, in 100-nanosecond units.
Return Value
Returns one of the HRESULT values shown in the following table.
Value | Description |
E_POINTER | NULL pointer argument. |
S_FALSE | Returned time is the same as the previous value. |
S_OK | Success. |
Remarks
This method calls the CBaseReferenceClock::GetPrivateTime method to determine the real clock time. If the clock time is strictly greater than the previous value, GetTime uses the clock time and returns S_OK. Otherwise, GetTime uses the previous value and returns S_FALSE. Therefore, the internal clock can run backward for a short period, without causing the reference time to run backward. Instead, the reference time will "stall" at the same value until the internal clock catches up.
Requirements
** Header:** Declared in Refclock.h; include Streams.h.
** Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).
See Also