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IDirectSoundCaptureBuffer8::GetCurrentPosition Method

[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 It has been superseded by WASAPI and Audio Graphs.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 GetCurrentPosition method retrieves the positions of the capture and read cursors in the buffer.

The capture cursor is ahead of the read cursor. The data after the read position up to and including the capture position is not necessarily valid data.

Syntax

HRESULT GetCurrentPosition(
         LPDWORD pdwCapturePosition,
         LPDWORD pdwReadPosition
)

Parameters

  • pdwCapturePosition
    Address of a variable that receives the offset from the start of the buffer, in bytes, of the capture cursor. The parameter can be NULL if this value is not wanted.
  • pdwReadPosition
    Address of a variable that receives the offset from the start of the buffer, in bytes, of the read cursor.

Return Value

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:

Return code
DSERR_INVALIDPARAM
DSERR_NODRIVER
DSERR_OUTOFMEMORY

Requirements

Header: Declared in DSound.h.

Library: Use Dsound3d.dll.

See Also

IDirectSoundCaptureBuffer8