DirectX SDK

IDirectSoundBuffer::GetFrequency

The IDirectSoundBuffer::GetFrequency method retrieves the frequency, in samples per second, at which the buffer is playing.

HRESULT GetFrequency(
  LPDWORD lpdwFrequency  
);

Parameters

lpdwFrequency
Address of the variable that represents the frequency at which the audio buffer is being played.

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:

DSERR_CONTROLUNAVAIL
DSERR_INVALIDPARAM
DSERR_PRIOLEVELNEEDED

Remarks

The frequency value will be in the range of DSBFREQUENCY_MIN to DSBFREQUENCY_MAX. These values are currently defined in Dsound.h as 100 and 100,000 respectively.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dsound.h.
  Import Library: Use dsound.lib.

See Also

IDirectSoundBuffer, IDirectSoundBuffer::SetFrequency