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CBaseReferenceClock::GetTime

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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