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["M.N.S.S.K.Pavan Kumar" <pavan iiit net>]

Hi,
	I have two questions.Till now I understood and tried programs with
almost everything but events.I tried it in tutorials but I did not
understand the use of signal emissions and signal blocking.
	
	1) what is an event ? what is it's use?
	2) what is an event box ?
	
	Thankyou in anticipation,

Pavan