The CS_DISABLE_POLL property determines whether or not ct_poll reports asynchronous operation completions.
Layered asynchronous applications use CS_DISABLE_POLL to prevent ct_poll from reporting low-level asynchronous completions.
An application cannot call ct_wakeup if the CS_DISABLE_POLL property is set to CS_TRUE.
For more information about CS_DISABLE_POLL, see “Layered applications”.