public HResult DetachObject()
{
lock (m_Obj)
{
m_IcyHandler = null;
}
return(HResult.S_OK);
}
public HResult ShutdownObject()
{
lock (m_Obj)
{
if (m_IcyHandler != null)
{
// Shut it down
(m_IcyHandler as IDisposable).Dispose();
// Reset for next time
m_IcyHandler = null;
}
}
return(HResult.S_OK);
}
// We can't just return an object. It must be the specified interface.
public HResult ActivateObject(Guid riid, out IntPtr ppv)
{
HResult hr;
lock (m_Obj)
{
if (m_IcyHandler == null)
{
m_IcyHandler = new IcySchemeHandler() as IMFSchemeHandler;
}
// Note that if we don't support the requested riid, this is
// essentially a noop.
ppv = Marshal.GetIUnknownForObject(m_IcyHandler);
hr = (HResult)Marshal.QueryInterface(ppv, ref riid, out ppv);
//Release 1 of the 2 refs we just added.
Marshal.Release(ppv);
}
return(hr);
}
