IDirectSoundCaptureBuffer8::GetFormat

The GetFormat method retrieves the waveform format of the capture buffer.

HRESULT GetFormat(
  LPWAVEFORMATEX pwfxFormat,
  DWORD dwSizeAllocated,
  LPDWORD pdwSizeWritten
);

pwfxFormat: Address of a WAVEFORMATEX structure that receives a description of the sound data in the capture buffer. To retrieve the buffer size needed to contain the format description, specify NULL.; in this case, the DWORD pointed to by the pdwSizeWritten parameter receives the size of the structure needed to receive complete format information.
dwSizeAllocated: Size, in bytes, of the WAVEFORMATEX structure. DirectSoundCapture writes, at most, dwSizeAllocated bytes to the structure.
pdwSizeWritten: Address of a variable that receives the number of bytes written to the WAVEFORMATEX structure; or, if pwfxFormat is NULL, the size of the WAVEFORMATEX structure that would be necessary to receive the information. This parameter can be NULL if the value is not wanted.

If the method succeeds, the return value is DS_OK. If the method fails, the return value may be DSERR_INVALIDPARAM.

Header: Declared in Dsound.h.

Import Library: Use Dsound3d.dll.