CBaseReferenceClock.AdviseTime method
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The AdviseTime method creates a one-shot advise request. This method implements the IReferenceClock::AdviseTime method.
Syntax
HRESULT AdviseTime(
REFERENCE_TIME baseTime,
REFERENCE_TIME streamTime,
HEVENT hEvent,
DWORD_PTR *pdwAdviseToken
);
Parameters
-
baseTime
-
Base reference time, in 100-nanosecond units.
-
streamTime
-
Stream offset time, in 100-nanosecond units.
-
hEvent
-
Handle to an event, created by the caller.
-
pdwAdviseToken
-
Pointer to a variable that receives an identifier for the advise request.
Return value
Returns one of the HRESULT values shown in the following table.
| Return code | Description |
|---|---|
|
Success |
|
Invalid time values |
|
Failure |
|
NULL pointer argument |
Remarks
This method creates a one-shot advise request for the reference time baseTime + streamTime. The sum must be greater than zero and less than MAX_TIME, or the method returns E_INVALIDARG. At the requested time, the clock signals the event specified in the hEvent parameter.
To cancel the notification before the time is reached, call the CBaseReferenceClock::Unadvise method and pass the pdwAdviseToken value returned from this call. After the notification has occurred, the clock automatically clears it, so it is not necessary to call Unadvise. However, it is not an error to do so.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|