The IDirectMusicPerformance::GetQueueTime method retrieves the current flush time, which is the earliest time in the queue at which messages can be flushed. Messages that have timestamps earlier than this time have already been sent to the port and cannot be invalidated.
HRESULT GetQueueTime(
REFERENCE_TIME * prtTime
);
If the method succeeds, the return value is S_OK.
If it fails, the method may return one of the following error values:
E_POINTER |
DMUS_E_NO_MASTER_CLOCK |
Windows NT/2000: Requires Windows 2000.
Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
Header: Declared in dmusici.h.