IDirectSoundCaptureBuffer::GetCurrentPosition

This method gets the current capture and read positions in the buffer.

The capture position is ahead of the read position. These positions are not always identical due to possible buffering of captured data either on the physical device or in the host. The data after the read position up to and including the capture position is not necessarily valid data.

HRESULT GetCurrentPosition( 
  LPDWORD lpdwCapturePosition, 
  LPDWORD lpdwReadPosition 
);

Parameters

• lpdwCapturePosition
  Address of a variable to receive the current capture position in the DirectSoundCaptureBuffer object. This position is an offset within the capture buffer and is specified in bytes. The value can be NULL if the caller is not interested in this position information.
• lpdwReadPosition
  Address of a variable to receive the current position in the DirectSoundCaptureBuffer object at which it is safe to read data. This position is an offset within the capture buffer and is specified in bytes. The value can be NULL if the caller is not interested in this position information.

Return Values

If the method succeeds, the return value is DS_OK.

If the method fails, the return value may be one of the following error values:

Requirements

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Dsound.h.
Link Library: Dsound.lib.

 Last updated on Thursday, April 08, 2004

© 1992-2003 Microsoft Corporation. All rights reserved.