IFWXIOBuffer::SetDataSize method

Applies to: desktop apps only

The SetDataSize method sets the actual size of the memory buffer that was used.

Syntax

HRESULT SetDataSize(
  [in]  DWORD dwDataSize
);

Parameters

• dwDataSize [in]
  The actual size, in bytes, of the buffer that was used.

Return value

This method can return one of these values.

• S_OK
  The data was successfully appended to the buffer object.

• E_INVALIDARG
  Requested size is larger than the allocated size.

Remarks

The IFWXIOBuffer::SetDataSize method can be called by a filter after buffer content is manipulated directly by means of IFWXIOBuffer::GetBufferAndSize.

The IFWXIOBuffer::SetDataSize method can also be called by the Microsoft Firewall service, when a buffer is passed to the IFWXSocket::Recv method, to set the number of bytes actually received.

Requirements

See also

IFWXIOBuffer

Build date: 7/12/2010