int ConEvents::Subscribe	(	wstring	wstrEvent,
		params	pFilter,
		[out] int	nPeriod
	)

Subscribe on event.

Use this method to subscribe on events. Method returns period of polling. You should use it between retrieve calls. Also attribute pFilter allow you to cut off unnecessary events.

Parameters:

wstrEvent	[in] (wstring) event type
pFilter	[in] (params) event filter
nPeriod	[out] (int) new value of polling period, milliseconds

Returns:: (int) subscription id

Exceptions:

STDE_TOOBIG too many subscriptions for one session.

See also:: Event polling usage