DirectX SDK

IDirectMusicPerformance::IsPlaying

The IDirectMusicPerformance::IsPlaying method determines whether a particular segment or segment state is currently being heard from the speakers.

HRESULT IsPlaying(
  IDirectMusicSegment* pSegment,
  IDirectMusicSegmentState* pSegState
);

Parameters

pSegment: Segment to check. If NULL, check only pSegState.
pSegState: Segment state to check. If NULL, check only pSegment.

Return Values

If the method succeeds and the requested segment or segment state is playing, the return value is S_OK. If neither is playing or only one was requested and it is not playing, the return value is S_FALSE.

If it fails, the method can return one of the following error values:

E_POINTER

DMUS_E_NO_MASTER_CLOCK

Requirements

  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.