DSBPOSITIONNOTIFY Structure
[The feature associated with this page, DirectSound, is a legacy feature. It has been superseded by WASAPI and Audio Graphs. Media Casting have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Media Casting instead of DirectSound, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The DSBPOSITIONNOTIFY structure describes a notification position. It is used by IDirectSoundNotify8::SetNotificationPositions.
Syntax
typedef struct DSBPOSITIONNOTIFY {
DWORD dwOffset;
HANDLE hEventNotify;
} DSBPOSITIONNOTIFY;
Members
- dwOffset
Offset from the beginning of the buffer where the notify event is to be triggered, or DSBPN_OFFSETSTOP. - hEventNotify
Handle to the event to be signaled when the offset has been reached.
Remarks
The DSBPN_OFFSETSTOP value in the dwOffset member causes the event to be signaled when playback or capture stops, either because the end of the buffer has been reached (and playback or capture is not looping) or because the application called the IDirectSoundBuffer8::Stop or IDirectSoundCaptureBuffer8::Stop method.
>When a playback buffer was created with DSBCAPS_LOCDEFER and DSBCAPS_CTRLPOSITIONNOTIFY along with any voice management flag, it is possible that a sound that has notifications set, but not yet reached, will be terminated by the voice manager. In this case, no event is signaled.
Requirements
Header: Declared in DSound.h.