private void TestPropSet()
{
int hr;
IPropertySetter pVal = (IPropertySetter) new PropertySetter();
IPropertySetter pVal2;
hr = m_pVideoGroupObj.SetPropertySetter(pVal);
DESError.ThrowExceptionForHR(hr);
hr = m_pVideoGroupObj.GetPropertySetter(out pVal2);
DESError.ThrowExceptionForHR(hr);
Debug.Assert(pVal == pVal2, "PropertySetter");
}