event handlers for printers,event watchers for printers

hi sir, Well sir my project in which my main motto is to pause,cancel, and delting a job.. i have done the RND of this topics and methods used in the project in C#... Well sir now i am in the way that i have to know about the event handlers,event watcher for the printjobs or printers.Means that when the user give the command of printjob then this job is watched by the event watcher and the information of printer i.e printer handler is given to the the event handler like jobid and according to this watching information of job the users jobs should be pause,cancel or delete the job event handlers