template< typename _FieldCreator , typename _WidgetAnnotCreator >
void  createWidget(
        _FieldCreator&& _fieldCreator
    ,   _WidgetAnnotCreator&& _annotCreator
    ,   kPDFieldFlagEnum _enumarator = 0
    )
{
    auto errorCode = std::invoke( _fieldCreator, pdDoc, nullptr, _enumerator, &m_field );
    CHECK_SUCCESS_THROW( errorCode );

    errorCode = std::invoke( _annotCreator, &m_field, &context.pdRect, _enumerator, &m_annot );
    CHECK_SUCCESS_THROW( errorCode );
}