The reason code for an event callback. 
The Event parameter will be different depending on the
reason for the callback.  The descriptions for each event
type describe the contents of the Event parameter.
- 
 UPNP_CONTROL_ACTION_REQUEST UPNP_CONTROL_ACTION_REQUEST
- Received by a device when a control point issues a control request.
- 
 UPNP_CONTROL_ACTION_COMPLETE UPNP_CONTROL_ACTION_COMPLETE
- A UpnpSendActionAsync call completed.
- 
 UPNP_CONTROL_GET_VAR_REQUEST UPNP_CONTROL_GET_VAR_REQUEST
- Received by a device when a query for a single service variable arrives.
- 
 UPNP_CONTROL_GET_VAR_COMPLETE UPNP_CONTROL_GET_VAR_COMPLETE
- A UpnpGetServiceVarStatus call completed.
- 
 UPNP_DISCOVERY_ADVERTISEMENT_ALIVE UPNP_DISCOVERY_ADVERTISEMENT_ALIVE
- Received by a control point when a new device or service is available.
- 
 UPNP_DISCOVERY_ADVERTISEMENT_BYEBYE UPNP_DISCOVERY_ADVERTISEMENT_BYEBYE
- Received by a control point when a device or service shuts down.
- 
 UPNP_DISCOVERY_SEARCH_RESULT UPNP_DISCOVERY_SEARCH_RESULT
- Received by a control point when a matching device or service responds.
- 
 UPNP_DISCOVERY_SEARCH_TIMEOUT UPNP_DISCOVERY_SEARCH_TIMEOUT
- Received by a control point when the search timeout expires.
- 
 UPNP_EVENT_SUBSCRIPTION_REQUEST UPNP_EVENT_SUBSCRIPTION_REQUEST
- Received by a device when a subscription arrives.
- 
 UPNP_EVENT_RECEIVED UPNP_EVENT_RECEIVED
- Received by a control point when an event arrives.
- 
 UPNP_EVENT_RENEWAL_COMPLETE UPNP_EVENT_RENEWAL_COMPLETE
- A UpnpRenewSubscriptionAsync call completed.
- 
 UPNP_EVENT_SUBSCRIBE_COMPLETE UPNP_EVENT_SUBSCRIBE_COMPLETE
- A UpnpSubscribeAsync call completed.
- 
 UPNP_EVENT_UNSUBSCRIBE_COMPLETE UPNP_EVENT_UNSUBSCRIBE_COMPLETE
- A UpnpUnSubscribeAsync call completed.
- 
 UPNP_EVENT_AUTORENEWAL_FAILED UPNP_EVENT_AUTORENEWAL_FAILED
- The auto-renewal of a client subscription failed.
- 
 UPNP_EVENT_SUBSCRIPTION_EXPIRED UPNP_EVENT_SUBSCRIPTION_EXPIRED
- A client subscription has expired.
Alphabetic index
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